Produits et services

Software; software for optimizing additive dosages in cement and concrete mixtures; software for the optimization, design, planning, and construction of concrete floor slabs and for the sustainable improvement of building durability; software for the production of optimized and sustainable building structures. Construction services; repair services, namely the repair and renovation of buildings, including floor and surface restoration using repair mortar for concrete and cement-based self-leveling compounds; application of mortars and cement-based self-leveling compounds; installation services for buildings, in particular coating of floors and surfaces with cement-based self-leveling compounds; construction consultancy; building maintenance; demolition and preservation of structures; provision of information relating to construction; consultancy in the field of building construction and execution of construction projects; construction, installation, and demolition work. Design and creation of software for the construction industry, in particular for the sustainable improvement of building fabric and individual structures; development of computer programs; services for the design of electronic data processing software; computer programming; computer programming services for data processing; artificial intelligence consultancy; quality control testing; quality control of building materials.

Produits et services

chemicals used in industry and construction

Abrégé

Disclosed is an aqueous additive or sealing composition for cementitious compositions comprises a water-soluble salt of carbonate or hydrogen carbonate, a silica-based material, a specifically selected dispersant, at least one specifically selected thickening agent, and water. Furthermore, a method of manufacturing the aqueous additive or sealing composition, a cementitious composition comprising a hydraulic cementitious binder, a mineral aggregate, the aqueous additive composition, and optionally water and its preparation method is described. Moreover, a method of treating a surface of a cementitious structure by applying the aqueous additive or sealing composition on a surface of a cementitious structure as surface treatment agent or coating material is disclosed. The disclosed additive and sealing composition can be used as liquid crystalline waterproofing admixture composition in several applications.

Classes IPC  ?

• C04B 40/00 - Procédés, en général, pour influencer ou modifier les propriétés des compositions pour mortiers, béton ou pierre artificielle, p. ex. leur aptitude à prendre ou à durcir
• C04B 18/14 - DéchetsRésidus provenant de procédés métallurgiques
• C04B 22/10 - Acides ou leurs sels comportant du carbone dans la partie anionique, p. ex. carbonates
• C04B 24/16 - Composés contenant du soufre
• C04B 24/24 - Composés macromoléculaires
• C04B 24/26 - Composés macromoléculaires obtenus par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carbone
• C04B 24/32 - Polyéthers, p. ex. polyéther de glycol et d'alkylphénol
• C04B 24/38 - Polysaccharides ou leurs dérivés
• C04B 28/04 - Ciments Portland
• C04B 41/45 - Revêtement ou imprégnation
• C04B 41/48 - Composés macromoléculaires
• C04B 41/63 - Composés macromoléculaires
• C04B 103/40 - Agents tensio-actifsDispersants
• C04B 103/44 - Agents épaississants, gélifiants ou augmentant la viscosité
• C04B 103/65 - Agents d'étanchéité ou d'hydrofugeage

Abrégé

A colloidal polymer inorganic hybrid material is used as an additive for a construction composition comprising a binder system, the binder system comprising a cementitious binder and at least one supplementary cementitious material, wherein the supplementary cementitious material(s) comprise(s) a calcined clay material, the clay material including at least one non-kaolinitic clay material. The hybrid material comprises at least one polyvalent metal cation, at least one polymeric dispersant which comprises anionic and/or anionogenic groups and polyether side chains, at least one anion which is able to form a low-solubility salt with the polyvalent metal cation, wherein the polyvalent metal cation is present in an amount corresponding to the following formula (1): A colloidal polymer inorganic hybrid material is used as an additive for a construction composition comprising a binder system, the binder system comprising a cementitious binder and at least one supplementary cementitious material, wherein the supplementary cementitious material(s) comprise(s) a calcined clay material, the clay material including at least one non-kaolinitic clay material. The hybrid material comprises at least one polyvalent metal cation, at least one polymeric dispersant which comprises anionic and/or anionogenic groups and polyether side chains, at least one anion which is able to form a low-solubility salt with the polyvalent metal cation, wherein the polyvalent metal cation is present in an amount corresponding to the following formula (1): 0 . 1 ⁢ 0 ≤ ∑ i ⁢ z K , i × n K , i φ × m D ≤ 1 ⁢ 5 ( 1 ) and the anion is present in an amount corresponding to the following formula (2): A colloidal polymer inorganic hybrid material is used as an additive for a construction composition comprising a binder system, the binder system comprising a cementitious binder and at least one supplementary cementitious material, wherein the supplementary cementitious material(s) comprise(s) a calcined clay material, the clay material including at least one non-kaolinitic clay material. The hybrid material comprises at least one polyvalent metal cation, at least one polymeric dispersant which comprises anionic and/or anionogenic groups and polyether side chains, at least one anion which is able to form a low-solubility salt with the polyvalent metal cation, wherein the polyvalent metal cation is present in an amount corresponding to the following formula (1): 0 . 1 ⁢ 0 ≤ ∑ i ⁢ z K , i × n K , i φ × m D ≤ 1 ⁢ 5 ( 1 ) and the anion is present in an amount corresponding to the following formula (2): 0 . 0 ⁢ 1 ≤ ∑ l ⁢ z A , l × n A , l ∑ i ⁢ z K , i × n K , i ≤ 1 ( 2 ) wherein φ is the charge density of the polymeric, mD is the amount of polymeric dispersant, zK,i is the valency of the polyvalent metal cation, nK,i is the molar amount of the polyvalent metal cation, zA,l is the valency of the anion, nA,l is the molar amount of the anion, the indices i, and l are independent of one another and are an integer greater than 0, i is the number of different kinds of polyvalent metal cations and l is the number of different kinds of anions which are able to form a low-solubility salt with the metal cation. The use of the colloidal polymer inorganic hybrid material allows for an effective slump retention.

Classes IPC  ?

• C04B 24/26 - Composés macromoléculaires obtenus par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carbone
• C04B 14/10 - Argile
• C04B 14/28 - Carbonates de calcium
• C04B 22/00 - Emploi de matières inorganiques comme ingrédients actifs pour mortiers, béton ou pierre artificielle, p. ex. emploi d'accélérateurs
• C04B 22/14 - Acides ou leurs sels comportant du soufre dans la partie anionique, p. ex. sulfures
• C04B 22/16 - Acides ou leurs sels comportant du phosphore dans la partie anionique, p. ex. phosphates
• C04B 28/04 - Ciments Portland
• C04B 103/00 - Fonctions ou propriétés de l'ingrédient actif
• C04B 103/40 - Agents tensio-actifsDispersants

Produits et services

Chemical preparations for use in industry; additives for concrete; binding chemicals for concrete; additives (chemical -) for use with concrete; chemical polymers; chemical compounds for use in the manufacture of polymers; polymers for use in the preparation of cements; polymers for use in the preparation of cementitious compositions; adhesives for the building industry. Concrete building materials; concrete; mortar; mortar for building; structural elements (non-metallic -) for use in building.

Produits et services

Chemical preparations for use in industry; additives for concrete; binding chemicals for concrete; additives (chemical -) for use with concrete; chemical polymers; chemical compounds for use in the manufacture of polymers; polymers for use in the preparation of cements; polymers for use in the preparation of cementitious compositions; adhesives for the building industry. Concrete building materials; concrete; mortar; mortar for construction industry; structural elements (non-metallic -) for use in building.

Abrégé

A hydrocolloid particle suspension comprises a concentration of at least 0.5 g/100 g of hydrocolloid particles, and a stabilizing additive containing at least one polyoxyalkylene moiety of 3 to 150 consecutive oxyalkylene units, wherein the at least one polyoxyalkylene moiety comprises at least 25 wt.-% of oxyethylene moieties, based on the total oxyalkylene moieties comprised in the stabilizing additive. The suspension contains less than 80 wt.-% of water and is useful as rheological modifier for cementitious applications. In the hydrocolloid particle suspension, the hydrocolloid particles are stabilized against premature swelling. The suspension exhibits adequate viscosity for ease of handling and dosage and is shelf-stable.

Classes IPC  ?

• C04B 24/26 - Composés macromoléculaires obtenus par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carbone
• C04B 18/24 - Déchets de végétaux, p. ex. balle de riz, rafles de maïsMatières cellulosiques, p. ex. papier
• C04B 24/16 - Composés contenant du soufre
• C04B 24/32 - Polyéthers, p. ex. polyéther de glycol et d'alkylphénol
• C04B 24/38 - Polysaccharides ou leurs dérivés
• C04B 103/00 - Fonctions ou propriétés de l'ingrédient actif
• C04B 103/50 - Agents anti-mousseAgents d'expulsion d'air
• C04B 103/67 - Agents biocides

Produits et services

(1) Chemical preparations for use in industry; additives for concrete; binding chemicals for concrete; additives (chemical -) for use with concrete; chemical polymers; chemical compounds for use in the manufacture of polymers; polymers for use in the preparation of cements; polymers for use in the preparation of cementitious compositions; adhesives for the building industry. (2) Concrete building materials; concrete; mortar; mortar for building; structural elements (non-metallic -) for use in building.

Produits et services

Chemical preparations for use in industry; additives for concrete; binding chemicals for concrete; additives (chemical -) for use with concrete; chemical polymers; chemical compounds for use in the manufacture of polymers; polymers for use in the preparation of cements; polymers for use in the preparation of cementitious compositions; adhesives for the building industry. Concrete building materials; concrete; mortar; mortar for building; structural elements (non-metallic -) for use in building.

Abrégé

A backfill material useful in mining and tunneling applications comprises a) tailings, b) a binder component, c) water, and d) a dispersant comprising a phosphorylated polycondensate being obtainable by a condensation reaction of (i) an aromatic compound having a phosphate moiety, (ii) an alkoxylated hydroxyaryl compound having a polyoxyalkylene chain with 3 to 130 oxyalkylene units, and (iii) formaldehyde, in a weight ratio of (i) : (ii) of 2 : 98 to 40 : 60. The backfill material, besides a well-defined yield point, maintains a high Unconfined Compressive Strength in the long term so that the strength of the formed backfill is not compromised.

Classes IPC  ?

• C04B 28/04 - Ciments Portland
• C04B 28/14 - Compositions pour mortiers, béton ou pierre artificielle, contenant des liants inorganiques ou contenant le produit de réaction d'un liant inorganique et d'un liant organique, p. ex. contenant des ciments de polycarboxylates contenant des ciments de sulfate de calcium
• C04B 28/16 - Compositions pour mortiers, béton ou pierre artificielle, contenant des liants inorganiques ou contenant le produit de réaction d'un liant inorganique et d'un liant organique, p. ex. contenant des ciments de polycarboxylates contenant des ciments de sulfate de calcium contenant de l'anhydrite

Produits et services

Development of computer programs; services for the design of electronic data processing software; computer programming; computer programming services for data processing; artificial intelligence consultancy; quality control testing; quality control of building materials.

Produits et services

(1) Chemical preparations for use in industry; additives for concrete; binding chemicals for concrete; additives (chemical -) for use with concrete; chemical polymers; chemical compounds for use in the manufacture of polymers; polymers for use in the preparation of cements; polymers for use in the preparation of cementitious compositions; adhesives for the building industry. (2) Concrete building materials; concrete; mortar; mortar for construction industry; structural elements (non-metallic -) for use in building.

Produits et services

Chemical preparations for use in industry; additives for concrete; binding chemicals for concrete; additives (chemical -) for use with concrete; chemical polymers; chemical compounds for use in the manufacture of polymers; polymers for use in the preparation of cements; polymers for use in the preparation of cementitious compositions; adhesives for the building industry. Concrete building materials; concrete; mortar; mortar for construction industry; structural elements (non-metallic -) for use in building.

Produits et services

Development of computer programs; services for the design of electronic data processing software; computer programming; computer programming services for data processing; artificial intelligence consultancy; quality control testing; quality control of building materials.

Produits et services

(1) Development of computer programs; services for the design of electronic data processing software; computer programming; computer programming services for data processing; artificial intelligence consultancy; quality control testing; quality control of building materials.

Abrégé

The application relates to an alkali-activatable binder composition containing (i) a binder selected from the group of blast furnace slag, silica fume, calcined clay and pozzolans and (ii) water-soluble tannin at a dosage of tannin (ii) with reference to the binder (i) of 0.1 to 4 weight %. The binder (i) may contain cement at a ratio of 10 weight % or less. The application further describes an aqueous building material mixture containing the binder composition and a hardened building structure obtained from the aqueous building material mixture. Furthermore, the use of tannin as a dispersant for a binder component in such an activatable binder composition is described.

Classes IPC  ?

• C04B 24/02 - AlcoolsPhénolsÉthers
• C04B 28/00 - Compositions pour mortiers, béton ou pierre artificielle, contenant des liants inorganiques ou contenant le produit de réaction d'un liant inorganique et d'un liant organique, p. ex. contenant des ciments de polycarboxylates
• C04B 28/08 - Ciments de scories
• C04B 103/40 - Agents tensio-actifsDispersants

Abrégé

A set control composition for cementitious systems comprises a) (a-1) a hydroxy monocarboxylic acid or a salt thereof, and (a-2) optionally, a polycarboxylic acid having a carboxylic acid equivalent weight of 333 or less, or a salt thereof, the carboxylic acid equivalent weight being the molecular weight of the polycarboxylic acid divided by the number of carboxylic acid functional groups, wherein (a-1) contributes at least 90% of the carboxyl groups to the total number of carboxyl groups of (a-1) and (a-2), b) at least one of (b-1) a borate source, and (b-2) a carbonate source, wherein the carbonate source is selected from inorganic carbonates having an aqueous solubility of 0.1 g·L−1 or more at 25° C., and organic carbonates, in a weight ratio of b) to a) in the range of 1.2 to 20, and c) a polyol in a weight ratio of c) to a) in the range of 1.0 to 10. The set control composition for cementitious systems effectively improves workability of cementitious systems for prolonged periods of time without compromising early compressive strength.

Classes IPC  ?

• C04B 40/00 - Procédés, en général, pour influencer ou modifier les propriétés des compositions pour mortiers, béton ou pierre artificielle, p. ex. leur aptitude à prendre ou à durcir
• C04B 22/06 - OxydesHydroxydes
• C04B 22/10 - Acides ou leurs sels comportant du carbone dans la partie anionique, p. ex. carbonates
• C04B 22/12 - Acides ou leurs sels comportant des halogènes dans la partie anionique, p. ex. chlorure de calcium
• C04B 24/02 - AlcoolsPhénolsÉthers
• C04B 24/06 - Acides carboxyliquesLeurs sels, anhydrides ou esters comportant des groupes hydroxyle
• C04B 24/26 - Composés macromoléculaires obtenus par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carbone
• C04B 28/06 - Ciments alumineux
• C04B 103/22 - Retardateurs de prise
• C04B 103/40 - Agents tensio-actifsDispersants

Abrégé

Subject of the invention is a kit for preparing a waterproofing coating comprising a calcium aluminium sulfate mineral embedded in a polymer matrix, wherein the kit comprises a first container containing an aqueous suspension (A) comprising • - aluminium (III) source and • - an organic polymer, wherein suspension (A) has a pH of 5 - 9, and a second container containing an aqueous suspension (B) comprising • - a calcium (II) source and • - a sulfate source, with the proviso that there is a molar excess of calcium (II) to sulfate in suspension (B), wherein suspension (B) has a pH > 9. The invention also relates to a method for producing coated substrate with such a kit and the use of the kit for coating, covering, sealing, waterproofing, stabilizing and/or repairing a substrate.

Classes IPC  ?

• C04B 28/06 - Ciments alumineux
• C04B 40/06 - Inhibition de la prise, p. ex. pour mortiers du type à action différée contenant de l'eau dans des récipients frangibles
• C04B 40/00 - Procédés, en général, pour influencer ou modifier les propriétés des compositions pour mortiers, béton ou pierre artificielle, p. ex. leur aptitude à prendre ou à durcir
• C04B 26/04 - Composés macromoléculaires obtenus par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carbone
• C04B 28/14 - Compositions pour mortiers, béton ou pierre artificielle, contenant des liants inorganiques ou contenant le produit de réaction d'un liant inorganique et d'un liant organique, p. ex. contenant des ciments de polycarboxylates contenant des ciments de sulfate de calcium
• C04B 111/27 - Résistance à l'eau, c.-à-d. matériaux imperméables ou hydrophobes

Produits et services

Chemicals and compounds for use in industry, science and civil engineering. Paints, dyes, lacquers and varnishes. Plastics and resins in extruded form for use in manufacture; insulating paints, insulating varnishes, and insulating coatings, bands or fabrics.

Abrégé

A process comprises providing a cementitious composition; admixing an alkali-free, aluminum-based shotcrete accelerator to the cementitious composition to obtain a shotcrete composition; and applying the shotcrete composition onto a surface to obtain a shotcrete structure and allowing the shotcrete structure to harden. The cementitious composition comprises a colloidal suspension of a low-solubility salt of at least one polyvalent metal cation selected from Fe3+, Fe2+, Zn2+, Mn2+, Cu2+, Mg2+, Ca2+, Sr2+, Ba2+, Al3+and mixtures thereof, and at least one anion which is able to form a low-solubility salt with the polyvalent metal cation, wherein the anion is selected from carbonate, oxalate, phosphate, polyphosphate, phosphite, borate, aluminate, sulfate, fluoride and mixtures thereof, with the proviso that where the cation comprises Ca2+and the anion comprises aluminate, the molar ratio of sulfate : (Ca2++ aluminate) in the colloidal suspension is lower than 0.30, wherein the colloidal suspension of the low-solubility salt is stabilized against crystal growth by at least one polymeric dispersant which comprises anionic and/or anionogenic groups. A kit-of-parts for use with a shotcrete composition comprises (i) an alkali- free, aluminum-based shotcrete accelerator and (ii) a colloidal suspension of the low-solubility salt which is stabilized against crystal growth by at least one polymeric dispersant which comprises anionic and/or anionogenic groups. I ncorporation of the colloidal suspension results in good slump retention as well as an improved compressive strength development up to 6 hours of the shotcrete composition.

Classes IPC  ?

• C04B 28/04 - Ciments Portland
• C04B 28/06 - Ciments alumineux
• C04B 40/06 - Inhibition de la prise, p. ex. pour mortiers du type à action différée contenant de l'eau dans des récipients frangibles

Abrégé

A cement dispersant comprises component i) and at least one of components ii) and iii). Component i) is a naphthalenesulfonic acid polycondensate being obtainable by a condensation reaction of i-1) a naphthalenesulfonic acid, i-2) an alkoxylated hydroxyaryl compound having a polyoxyalkylene chain with 3 to 130 oxyalkylene units, and i-3) formaldehyde, in a weight ratio of i-1):i-2) of 95:5 to 60:40. Component ii) is a phosphorylated polycondensate being obtainable by a condensation reaction of ii-1) an aromatic compound having a phosphate moiety, ii-2) an alkoxylated hydroxyaryl compound having a polyoxyalkylene chain with 3 to 130 oxyalkylene units, and ii-3) formaldehyde, in a weight ratio of ii-1):ii-2) of 2:98 to 40:60. Component iii) is a polycarboxylate ether having a carbon-chain backbone with anionic and/or anionogenic groups and polyoxyalkylene side chains having an average of 3 to 130 oxyalkylene units. The cement dispersant has a good dosage efficiency and a good balance between effectiveness and cost without compromising compressive strength, while avoiding compatibility issues and viscosity increase of the dispersant.

Classes IPC  ?

• C04B 24/22 - Leurs produits de condensation
• C04B 7/02 - Ciment Portland
• C04B 7/19 - Ciments Portland
• C04B 7/32 - Ciments alumineux
• C04B 14/06 - QuartzSable
• C04B 24/24 - Composés macromoléculaires
• C04B 24/26 - Composés macromoléculaires obtenus par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carbone
• C04B 28/04 - Ciments Portland
• C04B 28/06 - Ciments alumineux
• C04B 28/08 - Ciments de scories
• C04B 103/40 - Agents tensio-actifsDispersants

Abrégé

A backfill material useful in mining and tunneling applications comprises a) tailings, b) a binder component, c) water, and d) at least one dispersant selected from 5 polycarboxylate ethers and polycarboxylic acids. The binder component comprises a Portland cement clinker-based binder and calcined clay. By the partial substitution of Portland cement clinker- based binder by calcined clay, the backfill material has a reduced carbon footprint. The yield point of the material and the compressive strength of the formed backfill are not compromised.

Classes IPC  ?

• C04B 28/04 - Ciments Portland
• C04B 24/26 - Composés macromoléculaires obtenus par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carbone
• C04B 18/12 - DéchetsRésidus provenant de carrières, mines, ou analogues
• E21F 15/00 - Procédés ou dispositifs pour mettre en place les matériaux de remblayage dans les travaux du fond

Produits et services

Metal materials for building and construction, small items of metal hardware, including bolts, screws, nails. Flexible pipes, hose linings, insulators for cables and flexible hoses, not made of metal; glass fiber reinforced flexible ropes and cables; glass fibers for insulation in the form of ropes and cables; glass fibers reinforced plastic cables and glass fiber reinforced plastic mesh. Non-metallic materials for building and construction purposes; rods, not of metal, for building purposes.

Abrégé

A naphthalenesulfonic acid polycondensate is used as a plasticizer in a construction composition comprising sand and at least one cementitious binder. The naphthalenesulfonic acid polycondensate is obtainable by a condensation reaction of i) a naphthalenesulfonic acid, ii) an alkoxylated hydroxyaryl compound having a polyoxyalkylene chain with 3 to 130 oxyalkylene units, and iii) formaldehyde, in a weight ratio of i):ii) of 95:5 to 60:40, preferably 95:5 to 75:25, more preferably 95:5 to 85:15, wherein the sand has a methylene blue value according to DIN EN 933-9 of at least 10 g/kg. The naphthalenesulfonic acid polycondensate is largely clay-insensitive and its dispersibility is independent of the quality of the sand.

Classes IPC  ?

• C04B 24/22 - Leurs produits de condensation
• C04B 18/02 - Matières agglomérées
• C04B 28/04 - Ciments Portland
• C04B 28/06 - Ciments alumineux

Produits et services

Non-metallic materials for building and construction; cements, concrete, grouts, mortars and mixes thereof with polymers.

Produits et services

Chemicals and chemical compounds for use in industry, science and civil engineering; polymer compounds for use in reinforcing, strengthening and sealing concrete and masonry walls.

Abrégé

The present invention is directed to a process for manufacture of a flooring, at least comprising the steps of applying a primer composition to a surface and permitting the primer composition to at least partially dry to form a layer (LP); applying a composition (C) suitable to form a layer (L) comprising foamed particles comprising a thermoplastic polyurethane to the layer (LP); and applying a reactive coating composition to the layer (L) comprising foamed particles and permitting the reactive coating composition to react and at least partially dry to form a layer (LB). The present invention also relates to a flooring obtained by a process according to the present invention and the use of foamed particles comprising a thermoplastic polyurethane in a flooring.

Classes IPC  ?

• C08G 18/24 - Catalyseurs contenant des composés métalliques de l'étain
• B32B 27/06 - Produits stratifiés composés essentiellement de résine synthétique comme seul composant ou composant principal d'une couche adjacente à une autre couche d'une substance spécifique
• C08G 18/32 - Composés polyhydroxylésPolyaminesHydroxyamines
• C08G 18/36 - Esters hydroxylés d'acides gras supérieurs
• C08G 18/48 - Polyéthers
• C08G 18/76 - Polyisocyanates ou polyisothiocyanates cycliques aromatiques
• C08J 9/18 - Fabrication de particules expansibles par imprégnation des particules du polymère avec l'agent de gonflage
• E04F 15/00 - Revêtements de sols
• B32B 19/00 - Produits stratifiés composés essentiellement de fibres ou particules minérales naturelles, p. ex. d'amiante, de mica
• E04F 15/12 - Revêtements de sols faits de produits préparés sur place, p. ex. planchers en magnésite d'un seul tenant, mosaïques

Produits et services

Chemicals and chemical compounds for use in industry, science and civil engineering; unprocessed artificial resins and adhesives for use in industry; putties and other paste fillers. Non-metallic materials for building and construction; fiber reinforcing material, not of metal, for building, in the form of individual fibres, mats, fabrics and rovings applied to brick, stone and concrete; pre-formed, fiber-reinforced sheets, panels and plates for use in reinforcing of building materials including brick, stone and concrete.

Produits et services

Non-metallic materials for building and construction; cements, concrete, mortars and grouts.

Produits et services

Paints, dyes and varnishes for commercial purposes. Materials and products for caulking; materials and products for waterproofing being waterproofing packings. Non-metallic materials for building and construction; mortars and screeds.

Produits et services

(1) Non-metallic materials for building and construction; cements, concrete, mortars and grouts.

Produits et services

(1) Paints, dyes and varnishes for commercial purposes. (2) Materials and products for caulking; materials and products for waterproofing being waterproofing packings. (3) Non-metallic materials for building and construction; mortars and screeds.

Produits et services

Non-metallic materials for building and construction, namely, cements, concrete, bonding mortars and grouts.

Produits et services

Chemicals and chemical compounds for use in industry, science and civil engineering; unprocessed artificial resins and adhesives for use in industry; putties, namely putties for repairs, sealing and filling of grouts, mortars, concrete, stone, brickwork, rocks, walling and flooring; paste fillers, namely, paste fillers for repairs, sealing and filling of grouts, mortars, concrete, stone, brickwork, rocks, walling and flooring. Non-metallic materials for building and construction, namely, fiber reinforcing material, not of metal, for building, in the form of individual fibres, mats, fabrics and rovings applied to brick, stone and concrete; pre-formed, fiber-reinforced sheets, panels and plates for use in reinforcing of building materials, in particular, brick, stone and concrete.

Produits et services

Chemicals and chemical compounds for use in industry, science and civil engineering; synthetic polymer resins, coatings, and sealants for use in reinforcing, strengthening and sealing concrete and masonry walls.

Produits et services

Chemicals and compounds for use in industry, science and civil engineering, namely, acrylic and synthetic polymer resins, coatings, adhesives and sealants for use with concrete, mortars, masonry and stone Paints, natural dyes and synthetic dyes, lacquers and varnishes Plastics and resins in extruded form in the form of sheets, panels, plates, bars, rods, tubes, hosing and slats for use in manufacture; insulating paints, insulating varnishes, and insulating coatings, bands and fabrics

Produits et services

(1) Chemicals and compounds for use in industry, science and civil engineering. (2) Paints, dyes, lacquers and varnishes. (3) Plastics and resins in extruded form for use in manufacture; insulating paints, insulating varnishes, and insulating coatings, bands or fabrics.

Produits et services

(1) Non-metallic materials for building and construction; cements, concrete, grouts, mortars and mixes thereof with polymers.

Produits et services

(1) Metal materials for building and construction, small items of metal hardware, including bolts, screws, nails. (2) Flexible pipes, hose linings, insulators for cables and flexible hoses, not made of metal; glass fiber reinforced flexible ropes and cables; glass fibers for insulation in the form of ropes and cables; glass fibers reinforced plastic cables and glass fiber reinforced plastic mesh. (3) Non-metallic materials for building and construction purposes; rods, not of metal, for building purposes.

Produits et services

(1) Chemicals and chemical compounds for use in industry, science and civil engineering; polymer compounds for use in reinforcing, strengthening and sealing concrete and masonry walls.

Produits et services

(1) Chemicals and chemical compounds for use in industry, science and civil engineering; unprocessed artificial resins and adhesives for use in industry; putties and other paste fillers. (2) Non-metallic materials for building and construction; fiber reinforcing material, not of metal, for building, in the form of individual fibres, mats, fabrics and rovings applied to brick, stone and concrete; pre-formed, fiber-reinforced sheets, panels and plates for use in reinforcing of building materials including brick, stone and concrete.

Produits et services

Paints, natural dyes and synthetic dyes and varnishes for commercial purposes. Materials and products for caulking, namely, caulks and caulking compounds; materials and products for waterproofing being waterproofing packings used in building and construction. Non-metallic materials for building and construction, namely, mortars and screeds for building, bonding mortar for building purposes.

Produits et services

Non-metallic materials for building and construction, namely, cements, concrete, grouts, bonding mortars and mixes thereof containing polymers.

Produits et services

Metal materials for building and construction, namely, small items of metal hardware, in particular bolts, screws, nails, rods and bars. Flexible pipes, hose linings, insulators for cables and flexible hoses, not made of metal; glass fiber reinforced flexible ropes and cables for reinforcement and insulation; glass fibers for insulation in the form of ropes and cables; glass fiber-reinforced plastic cables and glass fiber reinforced plastic mesh for reinforcement and insulation. Non-metallic materials for building and construction purposes, namely, rods, not of metal, for building purposes.

Produits et services

Agglutinants for plaster; concrete preservatives, except paints and oils; chemical compositions for use in construction; additives (chemical -) for use with concrete; binding chemicals for concrete; chemicals for use in the manufacture of concrete; additives (chemical -) for use in repairing concrete; compositions for accelerating the setting of concrete; industrial chemicals; chemical preparations for use in industry; chemical products being additives for cement; chemical compositions for reinforcing cement; chemical additives for mortars; chemical additives; adhesives for use in industry; adhesives for the building industry; adhesives for mortar; surfactants for use in protecting concrete; chemical products for the manufacture of protective coatings; chemical compositions for reinforcing concrete; protective coatings for application in liquid form for use on concrete [other than paints or oils]. Concrete; building materials of concrete reinforced with plastics and glass fibres; mortar; mortar mix; facing mortar; cementitious waterproofing coatings; beams (non-metallic -) for building purposes; gypsum mortar; gypsum [building material]; cement; cement mixes; building materials, not of metal; fibre cement; coatings [building materials]; textured coatings [cementitious]; reinforcing fabrics (non-metallic -) for building; cement mortar for use in construction; gravel; adhesive mortar for building purposes. Construction; repair, namely repairing construction works, restoration of architectural works, especially repairing floors and surfaces using repair mortar for concrete and cementitious levelling compounds as well as applying mortar and cementitious levelling compounds; installation services for buildings, especially coating of floors and surfaces using cementitious levelling compounds; construction consultancy; construction; maintenance of buildings; dismantling of structures and maintenance of buildings; providing of information relating to building construction; advisory services relating to the construction of buildings and other structures; construction consultancy; building, construction and demolition. Science and technology services, and research and design relating thereto in building construction; industrial research in the field of construction, industrial analysis services relating to the following sectors: building construction.

Abrégé

−, from the calcium aluminate mineral phases plus the optional extraneous aluminate source; and the molar ratio of total available aluminate to sulfate is 0.4 to 2.0. The construction composition further comprises f) an ettringite formation controller and g) a co-retarder. The cement-reduced construction composition is a reduced carbon footprint construction composition and exhibits high early strength, high final strength, sufficient open time, high durability, and reduced shrinkage compared to ordinary Portland cement based mixes.

Classes IPC  ?

• C04B 28/26 - Silicates de métaux alcalins
• C04B 11/30 - Leurs mélanges avec d'autres matières inorganiques cimentaires avec des ciments hydrauliques, p. ex. avec des ciments Portland
• C04B 14/06 - QuartzSable
• C04B 24/06 - Acides carboxyliquesLeurs sels, anhydrides ou esters comportant des groupes hydroxyle
• C04B 24/26 - Composés macromoléculaires obtenus par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carbone
• C04B 28/04 - Ciments Portland
• C04B 28/14 - Compositions pour mortiers, béton ou pierre artificielle, contenant des liants inorganiques ou contenant le produit de réaction d'un liant inorganique et d'un liant organique, p. ex. contenant des ciments de polycarboxylates contenant des ciments de sulfate de calcium

Abrégé

The present invention concerns a grout injection device (10) and a method for injecting grout into a longitudinal hole, e.g. a borehole. The grout injection device (10) comprises a hose (11) having at least three separate lines (12,13,14) defined in the interior of said hose (11); a packer system (16) arranged at one end (15) of said hose (11), said packer system comprising a chamber (17), said chamber (17) being provided with an inlet opening (18) into which said at least three lines (12,13,24) of said hose (11) lead and one or more discharge openings (22,23,24) for releasing fluid from said chamber (17) into the surrounding of the packer system; and a pump system (30) arranged at the opposite end (28) of said hose (11), configured to inject fluids into said at least three lines (12,13,14) of said hose (11).

Classes IPC  ?

• E02D 3/12 - Consolidation par mise en place dans le sol de produits solidifiants ou obturant les pores
• E02D 31/10 - Dispositions de protection pour les fondations ou ouvrages réalisés par des techniques de fondationMesures dans le cadre des techniques de fondation pour protéger le sol ou l'eau du sous-sol, p. ex. prévention ou neutralisation de la pollution par le pétrole contre la poussée du terrain ou la pression hydraulique

Produits et services

Binders for mortar; concrete preservatives [other than paints or oils]; chemical compounds for use in construction; chemical admixtures for concrete; chemical concrete binders; chemical products for the manufacture of concrete; chemical admixtures for concrete repair; compounds to accelerate the hardening of concrete; chemical products for commercial use; chemical products for industrial use; chemical products as additives for cement; chemical compounds for reinforcing cement; chemical substances for mortar; chemical admixtures; adhesives for industrial purposes; adhesives for use in building; adhesives for mortar; surfactants for the protection of concrete; chemical products for the manufacture of protective coatings; chemical compounds for reinforcing concrete; protective coatings for concrete to be applied in liquid form [other than paints or oils]. Concrete; building materials of concrete reinforced with plastic and glass fibers; mortar; mortar mixtures; coating mortar; cementitious waterproof coatings; non-metallic building beams; gypsum mortar; gypsum [building material]; cement; cement mixtures; building materials [not of metal]; fiber cement; plaster [plastering material]; structural coatings [cementitious]; reinforcing fabric, not of metal, for building purposes; cement mortar for building purposes; gravel; adhesive mortar for building purposes. Construction; repairs; installation work; construction consultancy; construction services; maintenance of buildings; dismantling and preservation of buildings; provision of information relating to construction; advice on the construction of buildings and other structures; advice on the execution of construction projects; construction, assembly and demolition work. Scientific and technological services and research and related design services in the construction sector; industrial analysis and industrial research services in the construction sector.

Abrégé

A set control composition for cementitious systems comprises a retarder (a) selected from (a-1) polymeric polycarboxylic acids selected from homopolymers and copolymers of α,β-ethylenically unsaturated carboxylic acids; and copolymers of at least one α,β-ethylenically unsaturated carboxylic acid and at least one sulfo group containing monomer; and salts thereof, whose milliequivalent number of carboxyl groups is 3.0 meq/g or higher, preferably 3.0 to 17.0 meq/g, and having a molecular weight 25,000 g/mol or less, assuming all the carboxyl groups to be in unneutralized form, (a-2) phosphonic acids and salts thereof, (a-3) low molecular weight polycarboxylic acids and salts thereof, and mixtures thereof, (b) at least one of (b-1) a borate source and (b-2) a carbonate source, wherein the carbonate source is selected from inorganic carbonates having an aqueous solubility of 0.1 g·L−1 or more at 25° C., and organic carbonates, in a weight ratio of b) to a) in the range of 0.1 to 10, (c) a polyol having at least 3 alcoholic hydroxyl groups in its molecule, in a weight ratio of c) to a) in the range of 0.2 to 4, and (d) a dispersant. The set control composition effectively improves workability of cementitious systems for prolonged periods of time without compromising early compressive strength. The compositions show sufficient open time, i.e., the time until initial setting, good workability during said open time as characterized, for example by adequate slump flow over time, and fast setting. The invention further relates to a construction composition comprising i) a cementitious binder comprising one or more calcium silicate mineral phases and one or more calcium aluminate mineral phases, ii) optionally, an extraneous aluminate source, iii) a sulfate source, and iv) the set control composition. The construction composition contains 0.05 to 0.2 mol of total available aluminate, calculated as Al(OH)4−, from the calcium aluminate mineral phases plus the optional extraneous aluminate source, per 100 g of cementitious binder i), and the molar ratio of total available aluminate to sulfate is 0.4 to 2.0.

Classes IPC  ?

• C04B 40/00 - Procédés, en général, pour influencer ou modifier les propriétés des compositions pour mortiers, béton ou pierre artificielle, p. ex. leur aptitude à prendre ou à durcir
• C04B 24/26 - Composés macromoléculaires obtenus par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carbone
• C04B 24/00 - Emploi de matières organiques en tant qu'ingrédients actifs pour mortiers, béton ou pierre artificielle, p. ex. emploi de plastifiants
• C04B 22/08 - Acides ou leurs sels
• C04B 24/04 - Acides carboxyliquesLeurs sels, anhydrides ou esters
• C04B 24/10 - Hydrates de carbone ou leurs dérivés
• C04B 24/06 - Acides carboxyliquesLeurs sels, anhydrides ou esters comportant des groupes hydroxyle
• C04B 28/16 - Compositions pour mortiers, béton ou pierre artificielle, contenant des liants inorganiques ou contenant le produit de réaction d'un liant inorganique et d'un liant organique, p. ex. contenant des ciments de polycarboxylates contenant des ciments de sulfate de calcium contenant de l'anhydrite

Classes IPC  ?

• C04B 28/04 - Ciments Portland
• C04B 103/14 - Accélérateurs de durcissement

Abrégé

A hardening accelerator composition for cementitious compositions comprises a C- S-H seed component comprising a finely dispersed mineral constituent stabilized by a polymeric water-soluble dispersant, the mineral constituent comprising a semi ordered calcium silicate hydrate having an apparent crystallite size of 15 nm or less, and an alkanolamine selected from diethanolamine (DEA) and methyl diethanolamine (MDEA), or mixtures thereof. The hardening accelerator composition allows for a greater hardening acceleration and promotion of compressive strength development of cement than either agent alone. Said improvement in compressive strength is favorable in view of reducing the amount of cement or to improve production efficiency accompanied by reducing production time.

Classes IPC  ?

• C04B 28/04 - Ciments Portland
• C04B 40/00 - Procédés, en général, pour influencer ou modifier les propriétés des compositions pour mortiers, béton ou pierre artificielle, p. ex. leur aptitude à prendre ou à durcir
• C04B 103/14 - Accélérateurs de durcissement

Abrégé

A process for the preparation of a calcium silicate hydrate seed composition useful as a hardening accelerator for cementitious compositions, comprises making a first jet and a second jet to collide in an interaction zone in the presence of an aqueous solution of at least one polymeric water-soluble dispersant. The first jet comprises an aqueous solution of a calcium compound, and the second jet comprises an aqueous solution of a silicate compound. Calcium silicate hydrate seeds precipitate and a primary calcium silicate hydrate seed composition is obtained. The primary calcium silicate hydrate seed composition is subjected to a shearing treatment, preferably a continuous shearing treatment. Unlike the traditional approaches for synthesizing C-S-H particles, the new process is readily scalable and the obtained calcium silicate hydrate seed composition is more stable against sedimentation, viscosity-increase or gelation.

Classes IPC  ?

• C04B 40/00 - Procédés, en général, pour influencer ou modifier les propriétés des compositions pour mortiers, béton ou pierre artificielle, p. ex. leur aptitude à prendre ou à durcir
• C04B 22/00 - Emploi de matières inorganiques comme ingrédients actifs pour mortiers, béton ou pierre artificielle, p. ex. emploi d'accélérateurs
• C04B 103/14 - Accélérateurs de durcissement

Classes IPC  ?

• C04B 22/00 - Emploi de matières inorganiques comme ingrédients actifs pour mortiers, béton ou pierre artificielle, p. ex. emploi d'accélérateurs
• C04B 40/00 - Procédés, en général, pour influencer ou modifier les propriétés des compositions pour mortiers, béton ou pierre artificielle, p. ex. leur aptitude à prendre ou à durcir
• C04B 103/14 - Accélérateurs de durcissement

Abrégé

The present invention provides an admixture for concrete with an excellent flow retainability over a long time of 120 minutes until the placement of the concrete without loss of strength, and in which a workable time and constructability are obtainable because a suitable setting time is obtained, and in which bleeding is suppressible. The present invention provides an admixture for concrete with an excellent flow retainability over a long time of 120 minutes until the placement of the concrete without loss of strength, and in which a workable time and constructability are obtainable because a suitable setting time is obtained, and in which bleeding is suppressible. The admixture for concrete comprises a lignin derivative (A), a copolymer having a hydrolysable group (B) and a (meth)acrylic-based viscosity adjusting component (C), wherein the copolymer having the hydrolysable group (B) is a copolymer of at least two monomers consisting of an ethylenically unsaturated monomer having hydrolysability (b1) and an ethylenically unsaturated monomer having a polyalkyleneoxide ether chain (b2).

Classes IPC  ?

• C04B 24/10 - Hydrates de carbone ou leurs dérivés
• C04B 24/26 - Composés macromoléculaires obtenus par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carbone
• C04B 24/04 - Acides carboxyliquesLeurs sels, anhydrides ou esters
• C04B 24/32 - Polyéthers, p. ex. polyéther de glycol et d'alkylphénol
• C04B 18/06 - Résidus de combustion, p. ex. produits d'épuration des fumées, des émanations ou des gaz d'échappement

Abrégé

−, from the calcium aluminate mineral phases plus the optional extraneous aluminate source; and the molar ratio of total available aluminate to sulfate is 0.4 to 2.0. The construction composition further comprises f) an ettringite formation controller. The limestone calcined clay cement construction composition is a reduced carbon footprint composition and exhibits high early strength, high final strength, sufficient open time and high durability.

Classes IPC  ?

• C04B 22/10 - Acides ou leurs sels comportant du carbone dans la partie anionique, p. ex. carbonates
• C04B 7/02 - Ciment Portland
• C04B 22/14 - Acides ou leurs sels comportant du soufre dans la partie anionique, p. ex. sulfures
• C04B 24/02 - AlcoolsPhénolsÉthers
• C04B 24/04 - Acides carboxyliquesLeurs sels, anhydrides ou esters
• C04B 28/14 - Compositions pour mortiers, béton ou pierre artificielle, contenant des liants inorganiques ou contenant le produit de réaction d'un liant inorganique et d'un liant organique, p. ex. contenant des ciments de polycarboxylates contenant des ciments de sulfate de calcium
• C04B 28/16 - Compositions pour mortiers, béton ou pierre artificielle, contenant des liants inorganiques ou contenant le produit de réaction d'un liant inorganique et d'un liant organique, p. ex. contenant des ciments de polycarboxylates contenant des ciments de sulfate de calcium contenant de l'anhydrite
• C04B 103/40 - Agents tensio-actifsDispersants

Abrégé

A construction composition comprises a) a cementitious binder comprising one or more calcium silicate mineral phases and one or more calcium aluminate mineral phases; b) optionally, an extraneous aluminate source; c) a sulfate source; d) an ettringite formation controller comprising (i) glyoxylic acid, a glyoxylic acid salt and/or a glyoxylic acid derivative; and (ii) at least one of a borate source and a carbonate source, wherein the carbonate source is selected from inorganic carbonates having an aqueous solubility of 0.1 g·L−1 or more, organic carbonates, and mixtures thereof; and e) a polyol in an amount of 0.2 to 2.5 wt.-%, relative to the amount of cementitious binder a). The composition contains 0.05 to 0.2 mol of total available aluminate, calculated as Al(OH)4−, from the calcium aluminate mineral phases plus the optional extraneous aluminate source, per 100 g of cementitious binder a); and the molar ratio of total available aluminate to sulfate is 0.4 to 2.0. The construction composition exhibits high early strength and sufficient open time. The advantageous effects are readily achievable for a variety of cements with varying elemental compositions.

Classes IPC  ?

• C04B 7/02 - Ciment Portland
• C04B 28/18 - Compositions pour mortiers, béton ou pierre artificielle, contenant des liants inorganiques ou contenant le produit de réaction d'un liant inorganique et d'un liant organique, p. ex. contenant des ciments de polycarboxylates contenant des mélanges du type chaux et silice
• C04B 28/04 - Ciments Portland
• C04B 28/06 - Ciments alumineux
• C04B 28/14 - Compositions pour mortiers, béton ou pierre artificielle, contenant des liants inorganiques ou contenant le produit de réaction d'un liant inorganique et d'un liant organique, p. ex. contenant des ciments de polycarboxylates contenant des ciments de sulfate de calcium
• C04B 24/02 - AlcoolsPhénolsÉthers
• C04B 24/04 - Acides carboxyliquesLeurs sels, anhydrides ou esters

Produits et services

Agglutinants for plaster; concrete preservatives, except paints and oils; chemical compositions for use in construction; additives (chemical -) for use with concrete; binding chemicals for concrete; chemicals for use in the manufacture of concrete; additives (chemical -) for use in repairing concrete; compositions for accelerating the setting of concrete; industrial chemicals; chemical preparations for use in industry; chemical products being additives for cement; chemical compositions for reinforcing cement; chemical additives for mortars; chemical additives; adhesives for use in industry; adhesives for the building industry; adhesives for mortar; surfactants for use in protecting concrete; chemical products for the manufacture of protective coatings; chemical compositions for reinforcing concrete; protective coatings for application in liquid form for use on concrete [other than paints or oils]. Concrete; building materials of concrete reinforced with plastics and glass fibres; mortar; mortar mix; facing mortar; cementitious waterproofing coatings; beams (non-metallic -) for building purposes; gypsum mortar; gypsum [building material]; cement; cement mixes; building materials [non-metallic]; fibre cement; coatings [building materials]; textured coatings [cementitious]; reinforcing fabrics (non-metallic -) for building; cement mortar for use in construction; gravel; adhesive mortar for building purposes.

Produits et services

Agglutinants for plaster; concrete preservatives, except paints and oils; chemical compositions for use in construction; additives (chemical -) for use with concrete; binding chemicals for concrete; chemicals for use in the manufacture of concrete; additives (chemical -) for use in repairing concrete; compositions for accelerating the setting of concrete; industrial chemicals; chemical preparations for use in industry; chemical products being additives for cement; chemical compositions for reinforcing cement; chemical additives for mortars; chemical additives; adhesives for use in industry; adhesives for the building industry; adhesives for mortar; surfactants for use in protecting concrete; chemical products for the manufacture of protective coatings; chemical compositions for reinforcing concrete; protective coatings for application in liquid form for use on concrete [other than paints or oils]. Concrete; building materials of concrete reinforced with plastics and glass fibres; mortar; mortar mix; facing mortar; cementitious waterproofing coatings; beams (non-metallic -) for building purposes; gypsum mortar; gypsum [building material]; cement; cement mixes; building materials [non-metallic]; fibre cement; coatings [building materials]; textured coatings [cementitious]; reinforcing fabrics (non-metallic -) for building; cement mortar for use in construction; gravel; adhesive mortar for building purposes.

Produits et services

Agglutinants for plaster; Concrete preservatives, except paints and oils; Chemical compositions for use in construction; Additives (Chemical -) for use with concrete; Binding chemicals for concrete; Chemicals for use in the manufacture of concrete; Additives (Chemical -) for use in repairing concrete; Compositions for accelerating the setting of concrete; Industrial chemicals; Chemical preparations for use in industry; Chemical products being additives for cement; Chemical compositions for reinforcing cement; Chemical additives for mortars; Chemical additives; Adhesives for use in industry; Adhesives for the building industry; Adhesives for mortar; Surfactants for use in protecting concrete; Chemical products for the manufacture of protective coatings; Chemical compositions for reinforcing concrete; Protective coatings for application in liquid form for use on concrete [other than paints or oils]. Concrete; Building materials of concrete reinforced with plastics and glass fibres; Mortar; Mortar mix; Facing mortar; Cementitious waterproofing coatings; Beams (Non-metallic -) for building purposes; Gypsum mortar; Gypsum [building material]; Cement; Cement mixes; Building materials, not of metal; Fibre cement; Coatings [building materials]; Textured coatings [cementitious]; Reinforcing fabrics (Non-metallic -) for building; Cement mortar for use in construction; Gravel; Adhesive mortar for building purposes. Construction; Repair, namely Repairing construction works, Restoration of architectural works, Especially Repairing floors and surfaces using repair mortar for concrete and cementitious levelling compounds as well as applying mortar and cementitious levelling compounds; Installation services for buildings, Especially Coating of floors and surfaces using cementitious levelling compounds; Construction consultancy; Construction; Maintenance of buildings; Dismantling of structures and Maintenance of buildings; Providing of information relating to building construction; Advisory services relating to the construction of buildings and other structures; Construction consultancy; Building, construction and demolition. Science and technology services, and research and design relating thereto in building construction; Industrial research in the field of construction, Industrial analysis services Relating to the following sectors: Building construction.

Produits et services

(1) Agglutinants for plaster; concrete preservatives, except paints and oils; chemical compositions for use in construction; additives (chemical -) for use with concrete; binding chemicals for concrete; chemicals for use in the manufacture of concrete; additives (chemical -) for use in repairing concrete; compositions for accelerating the setting of concrete; industrial chemicals; chemical preparations for use in industry; chemical products being additives for cement; chemical compositions for reinforcing cement; chemical additives for mortars; chemical additives; adhesives for use in industry; adhesives for the building industry; adhesives for mortar; surfactants for use in protecting concrete; chemical products for the manufacture of protective coatings; chemical compositions for reinforcing concrete; protective coatings for application in liquid form for use on concrete [other than paints or oils]. (2) Concrete; building materials of concrete reinforced with plastics and glass fibres; mortar; mortar mix; facing mortar; cementitious waterproofing coatings; beams (non-metallic -) for building purposes; gypsum mortar; gypsum [building material]; cement; cement mixes; building materials [non-metallic]; fibre cement; coatings [building materials]; textured coatings [cementitious]; reinforcing fabrics (non-metallic -) for building; cement mortar for use in construction; gravel; adhesive mortar for building purposes.

Produits et services

concrete preservatives, except paints and oils; chemical compositions for use in construction, namely, construction industry adhesives; waterproofing chemical compositions for cementitious, concrete, masonry and other construction surfaces; chemical additives for use with concrete; chemical additives for use as binding agents in concrete; chemical additives and admixtures for use in the manufacture of concrete; chemical additives for use in repairing concrete; chemical compositions for accelerating the setting of concrete; industrial chemicals; chemical preparations for use in industry; chemical additives for cement; chemical compositions for reinforcing cement; chemical additives for mortars for building; chemical additives for concrete; adhesives for use in industry; adhesive materials for the building industry; surfactants for use in protecting concrete; chemical products for the manufacture of protective coatings; chemical compositions for reinforcing concrete; liquid coatings for use in protecting concrete Concrete; building materials of concrete, namely, blocks, bricks, posts, slabs, and panels, reinforced with plastics and glass fibres; mortar for building; mortar mix; facing mortar; cementitious waterproofing coatings being cementitious material for building purposes; Non-metal beams for building purposes; gypsum mortar for building; gypsum for use as building materials; cement; cement mixes; Non-metal building materials, namely, cement, concrete, and mortar for use in building; fibre cement; coatings, namely, cementitious-based coatings being cementitious materials for use in building; cementitious textured coatings being cementitious material for building purposes; Non-metal reinforcing fabrics for building; cement mortar for use in construction; gravel; adhesive mortar for building purposes

Produits et services

(1) Agglutinants for plaster; concrete preservatives, except paints and oils; chemical compositions for use in construction; additives (chemical -) for use with concrete; binding chemicals for concrete; chemicals for use in the manufacture of concrete; additives (chemical -) for use in repairing concrete; compositions for accelerating the setting of concrete; industrial chemicals; chemical preparations for use in industry; chemical products being additives for cement; chemical compositions for reinforcing cement; chemical additives for mortars; chemical additives; adhesives for use in industry; adhesives for the building industry; adhesives for mortar; surfactants for use in protecting concrete; chemical products for the manufacture of protective coatings; chemical compositions for reinforcing concrete; protective coatings for application in liquid form for use on concrete [other than paints or oils]. (2) Concrete; building materials of concrete reinforced with plastics and glass fibres; mortar; mortar mix; facing mortar; cementitious waterproofing coatings; beams (non-metallic -) for building purposes; gypsum mortar; gypsum [building material]; cement; cement mixes; building materials [non-metallic]; fibre cement; coatings [building materials]; textured coatings [cementitious]; reinforcing fabrics (non-metallic -) for building; cement mortar for use in construction; gravel; adhesive mortar for building purposes.

Produits et services

Agglutinants for plaster, namely, construction gluing agents and construction adhesives; concrete preservatives, except paints and oils; chemical compositions for use in building and construction, namely, concrete admixtures; concrete chemical additives for use in building and construction; chemical additivefs for use as binding agents in concrete; chemical additives for use in the manufacture of concrete; chemical additives for use in repairing concrete; chemical compositions for accelerating the setting of concrete; industrial chemicals for use in building and construction; chemical preparations for use in building and construction industry; chemical products being additives for cement; chemical compositions for reinforcing cement; chemical additives for mortars for building; adhesives for use in industry; adhesives for use in the building and construction industry; industrial adhesives for mortar for building; surfactants for use in protecting concrete; chemical products for the manufacture of protective coatings; chemical compositions for reinforcing concrete; protective coatings for application in liquid form for use on concrete other than paints or oils Concrete; building materials of concrete, namely, blocks, bricks, posts, slabs and panels reinforced with plastics and glass fibres; mortar for building; mortar mix; facing mortar; cementitious waterproofing coatings being cementitious material for building purposes; non-metal beams for building purposes; gypsum mortar for building; gypsum for use as building materials; cement; cement mixes; non-metal building materials, namely, concrete; fibre cement; coatings for concrete; textured coatings for concrete; non-metal reinforcing fabrics for building; cement mortar for use in construction; gravel; adhesive mortar for building purposes

Abrégé

Disclosed is an aqueous additive or sealing composition for cementitious compositions comprises a water-soluble salt of carbonate or hydrogen carbonate, a silica-based material, a specifically selected dispersant, at least one specifically selected thickening agent, and water. Furthermore, a method of manufacturing the aqueous additive or sealing composition, a cementitious composition comprising a hydraulic cementitious binder, a mineral aggregate, the aqueous additive composition, and optionally water and its preparation method is described. Moreover, a method of treating a surface of a cementitious structure by applying the aqueous additive or sealing composition on a surface of a cementitious structure as surface treatment agent or coating material is disclosed. The disclosed additive and sealing composition can be used as liquid crystalline waterproofing admixture composition in several applications.

Classes IPC  ?

• C04B 28/02 - Compositions pour mortiers, béton ou pierre artificielle, contenant des liants inorganiques ou contenant le produit de réaction d'un liant inorganique et d'un liant organique, p. ex. contenant des ciments de polycarboxylates contenant des ciments hydrauliques autres que ceux de sulfate de calcium

Abrégé

Disclosed is an aqueous additive or sealing composition for cementitious compositions comprises a water-soluble salt of carbonate or hydrogen carbonate, a silica-based material, a specifically selected dispersant, at least one specifically selected thickening agent, and water. Furthermore, a method of manufacturing the aqueous additive or sealing composition, a cementitious composition comprising a hydraulic cementitious binder, a mineral aggregate, the aqueous additive composition, and optionally water and its preparation method is described. Moreover, a method of treating a surface of a cementitious structure by applying the aqueous additive or sealing composition on a surface of a cementitious structure as surface treatment agent or coating material is disclosed. The disclosed additive and sealing composition can be used as liquid crystalline waterproofing admixture composition in several applications.

Classes IPC  ?

• C04B 28/02 - Compositions pour mortiers, béton ou pierre artificielle, contenant des liants inorganiques ou contenant le produit de réaction d'un liant inorganique et d'un liant organique, p. ex. contenant des ciments de polycarboxylates contenant des ciments hydrauliques autres que ceux de sulfate de calcium
• C04B 40/00 - Procédés, en général, pour influencer ou modifier les propriétés des compositions pour mortiers, béton ou pierre artificielle, p. ex. leur aptitude à prendre ou à durcir
• C04B 41/00 - Post-traitement des mortiers, du béton, de la pierre artificielle ou des céramiquesTraitement de la pierre naturelle
• C04B 103/65 - Agents d'étanchéité ou d'hydrofugeage

Abrégé

A hydrocolloid particle suspension comprises a concentration of at least 0.5 g/100 g of hydrocolloid particles, and a stabilizing additive containing at least one polyoxyalkylene moiety of 3 to 150 consecutive oxyalkylene units, wherein the at least one polyoxyalkylene moiety comprises at least 25 wt.-% of oxyethylene moieties, based on the total oxyalkylene moieties comprised in the stabilizing additive. The suspension contains less than 80 wt.-% of water and is useful as rheological modifier for cementitious applications. In the hydrocolloid particle suspension, the hydrocolloid particles are stabilized against premature swelling. The suspension exhibits adequate viscosity for ease of handling and dosage and is shelf-stable.

Classes IPC  ?

• C04B 40/00 - Procédés, en général, pour influencer ou modifier les propriétés des compositions pour mortiers, béton ou pierre artificielle, p. ex. leur aptitude à prendre ou à durcir

Abrégé

A hydrocolloid particle suspension comprises a concentration of at least 0.5 g/100 g of hydrocolloid particles, and a stabilizing additive containing at least one polyoxyalkylene moiety of 3 to 150 consecutive oxyalkylene units, wherein the at least one polyoxyalkylene moiety comprises at least 25 wt.-% of oxyethylene moieties, based on the total oxyalkylene moieties comprised in the stabilizing additive. The suspension contains less than 80 wt.-% of water and is useful as rheological modifier for cementitious applications. In the hydrocolloid particle suspension, the hydrocolloid particles are stabilized against premature swelling. The suspension exhibits adequate viscosity for ease of handling and dosage and is shelf-stable.

Classes IPC  ?

• C04B 40/00 - Procédés, en général, pour influencer ou modifier les propriétés des compositions pour mortiers, béton ou pierre artificielle, p. ex. leur aptitude à prendre ou à durcir

Abrégé

The present invention relates to a coating composition comprising an isocyanate compound, an isocyanate-reactive compound, a reactive diluent with (meth)acrylate functionality, optionally a carbon dioxide scavenger and an autooxidation catalyst. Moreover, the present invention relates to a method for preparing a reactive composition of an isocyanate compound with an isocyanate-reactive compound by adding a reactive diluent with (meth)acrylate functionality, optionally a carbon dioxide scavenger and an autooxidation catalyst. Finally, the present invention relates to the use of acrylates and/or methacrylates as reactive diluents for the reaction of an isocyanate compound with an isocyanate-reactive compound in the presence of an autooxidation catalyst and 0optionally a carbon dioxide scavenger.

Classes IPC  ?

• C08G 18/79 - Polyisocyanates ou polyisothiocyanates contenant des hétéro-atomes autres que l'azote, l'oxygène ou le soufre de l'isocyanate ou de l'isothiocyanate de l'azote caractérisés par le polyisocyanate utilisé, celui-ci contenant des groupes formés par oligomérisation d'isocyanates ou d'isothiocyanates
• C08G 18/30 - Composés de bas poids moléculaire
• C08G 18/44 - Polycarbonates
• C08G 18/48 - Polyéthers
• C08F 283/00 - Composés macromoléculaires obtenus par polymérisation de monomères sur des polymères prévus par la sous-classe
• C08L 75/00 - Compositions contenant des polyurées ou des polyuréthanesCompositions contenant des dérivés de tels polymères
• C08L 75/04 - Polyuréthanes
• C08L 75/08 - Polyuréthanes à partir des polyéthers
• C08G 18/75 - Polyisocyanates ou polyisothiocyanates cycliques cycloaliphatiques
• C08G 18/12 - Procédés mettant en œuvre un prépolymère impliquant la réaction d'isocyanates ou d'isothiocyanates avec des composés contenant des hydrogènes actifs, dans une première étape réactionnelle utilisant plusieurs composés contenant un hydrogène actif dans le premier stade de la polymérisation

Abrégé

A set control composition for cementitious systems comprises a) (a-1) a hydroxy monocarboxylic acid or a salt thereof, and (a-2) optionally, a polycarboxylic acid having a carboxylic acid equivalent weight of 333 or less, or a salt thereof, the carboxylic acid equivalent weight being the molecular weight of the polycarboxylic acid divided by the number of carboxylic acid functional groups, wherein (a-1) contributes at least 90% of the carboxyl groups to the total number of carboxyl groups of (a-1) and (a-2), b) at least one of (b-1) a borate source, and (b-2) a carbonate source, wherein the carbonate source is selected from inorganic carbonates having an aqueous solubility of 0.1 g-L-1 or more at 25 °C, and organic carbonates, in a weight ratio of b) to a) in the range of 1.2 to 20, and c) a polyol in a weight ratio of c) to a) in the range of 1.0 to 10. The set control composition for cementitious systems effectively improves workability of cementitious systems for prolonged periods of time without compromising early compressive strength.

Classes IPC  ?

• C04B 40/00 - Procédés, en général, pour influencer ou modifier les propriétés des compositions pour mortiers, béton ou pierre artificielle, p. ex. leur aptitude à prendre ou à durcir
• C04B 28/06 - Ciments alumineux
• C04B 28/16 - Compositions pour mortiers, béton ou pierre artificielle, contenant des liants inorganiques ou contenant le produit de réaction d'un liant inorganique et d'un liant organique, p. ex. contenant des ciments de polycarboxylates contenant des ciments de sulfate de calcium contenant de l'anhydrite
• C04B 103/22 - Retardateurs de prise

Abrégé

A set control composition for cementitious systems comprises a) (a-1) a hydroxy monocarboxylic acid or a salt thereof, and (a-2) optionally, a polycarboxylic acid having a carboxylic acid equivalent weight of 333 or less, or a salt thereof, the carboxylic acid equivalent weight being the molecular weight of the polycarboxylic acid divided by the number of carboxylic acid functional groups, wherein (a-1) contributes at least 90% of the carboxyl groups to the total number of carboxyl groups of (a-1) and (a-2), b) at least one of (b-1) a borate source, and (b-2) a carbonate source, wherein the carbonate source is selected from inorganic carbonates having an aqueous solubility of 0.1 g-L-1 or more at 25 °C, and organic carbonates, in a weight ratio of b) to a) in the range of 1.2 to 20, and c) a polyol in a weight ratio of c) to a) in the range of 1.0 to 10. The set control composition for cementitious systems effectively improves workability of cementitious systems for prolonged periods of time without compromising early compressive strength.

Classes IPC  ?

• C04B 28/06 - Ciments alumineux
• C04B 28/16 - Compositions pour mortiers, béton ou pierre artificielle, contenant des liants inorganiques ou contenant le produit de réaction d'un liant inorganique et d'un liant organique, p. ex. contenant des ciments de polycarboxylates contenant des ciments de sulfate de calcium contenant de l'anhydrite
• C04B 40/00 - Procédés, en général, pour influencer ou modifier les propriétés des compositions pour mortiers, béton ou pierre artificielle, p. ex. leur aptitude à prendre ou à durcir

Abrégé

The present invention relates to shelf-stable, pigmented monomeric (meth)acrylate-based compositions comprising a stabilizer selected from sterically hindered aminoxyl radical compounds and a urea-aldehyde resin. Moreover, the present invention relates to a process for the stabilization of pigmented monomeric (meth)acrylate-based compositions and to the use of sterically hindered aminoxyl radical compounds for the stabilization of pigmented monomeric (meth)acrylate-based compositions in the presence of a urea-aldehyde resin.

Classes IPC  ?

• C09D 11/03 - Encres d’imprimerie caractérisées par des particularités autres que la nature chimique du liant
• C09D 11/101 - Encres spécialement adaptées aux procédés d’imprimerie mettant en œuvre la réticulation par énergie ondulatoire ou par radiation de particules, p. ex. réticulation par UV qui suit l’impression
• C09D 7/00 - Caractéristiques de compositions de revêtement non prévues dans le groupe Procédés pour l’incorporation d’ingrédients dans des compositions de revêtement
• C09D 11/103 - Encres d’imprimerie à base de résines artificielles contenant des composés macromoléculaires obtenus par des réactions autres que celles faisant intervenir uniquement des liaisons non saturées carbone-carbone d’aldéhydes, p. ex. résines phénol-formaldéhydes

Abrégé

A colloidal polymer inorganic hybrid material is used as an additive for a construction composition comprising a binder system, the binder system comprising a cementitious binder and at least one supplementary cementitious material, wherein the supplementary cementitious material(s) comprise(s) a calcined clay material, the clay material including at least one non-kaolinitic clay material. The hybrid material comprises at least one polyvalent metal cation, at least one polymeric dispersant which comprises anionic and/or anionogenic groups and polyether side chains, at least one anion which is able to form a low-solubility salt with the polyvalent metal cation, wherein the polyvalent metal cation is present in an amount corresponding to the following formula (1), and the anion is present in an amount corresponding to the following formula (2), wherein ? is the charge density of the polymeric, mD is the amount of polymeric dispersant, ZK,i is the valency of the polyvalent metal cation, nK,i is the molar amount of the polyvalent metal cation, ZA,i is the valency of the anion, nA,I is the molar amount of the anion, the indices i, and I are independent of one another and are an integer greater than 0, i is the number of different kinds of polyvalent metal cations and I is the number of different kinds of anions which are able to form a low-solubility salt with the metal cation. The use of the colloidal polymer inorganic hybrid material allows for an effective slump retention.

Classes IPC  ?

• C04B 28/04 - Ciments Portland

Abrégé

K,iK,iA,iA,IA,I is the molar amount of the anion, the indices i, and I are independent of one another and are an integer greater than 0, i is the number of different kinds of polyvalent metal cations and I is the number of different kinds of anions which are able to form a low-solubility salt with the metal cation. The use of the colloidal polymer inorganic hybrid material allows for an effective slump retention.

Classes IPC  ?

• C04B 28/04 - Ciments Portland
• C04B 40/00 - Procédés, en général, pour influencer ou modifier les propriétés des compositions pour mortiers, béton ou pierre artificielle, p. ex. leur aptitude à prendre ou à durcir

Abrégé

The present invention relates to a cement slurry composition comprising: 25% to 60% by volume of cenospheres; 15% to 45% by volume of a combination of a cementitious material and an additive; 20% to 35% by volume of water and 3% to 15% by volume of air; wherein the total volume of the composition adds to 100%, and wherein the cementitious material comprises 30% to 95% of hydraulic cement by weight of total cementitious material (BWTC) and 5% to 70% of pozzolan BWTC, the additive is present at an amount of 0.1% to 6% BWTC, whereby the total weight of the cementitious material adds to 100%. The present invention also relates to a method of preparing the cement slurry composition, a set or hardened cement obtained from the cement slurry composition and the use of the cement slurry composition in cementing or plugging oil and gas well, and in civil construction and architecture.

Classes IPC  ?

• C04B 28/04 - Ciments Portland
• C04B 28/06 - Ciments alumineux
• C09K 8/467 - Compositions de cimentation, p. ex. pour la cimentation des tubes dans les trous de forageCompositions de bouchage, p. ex. pour tuer des puits contenant des liants inorganiques, p. ex. ciment Portland contenant des additifs pour des utilisations spécifiques

Produits et services

synthetic fibers for reinforcing cementitious compositions

Abrégé

A naphthalenesulfonic acid polycondensate is used as a plasticizer in a construction composition comprising sand and at least one cementitious binder. The naphthalenesulfonic acid polycondensate is obtainable by a condensation reaction of i) a naphthalenesulfonic acid, ii) an alkoxylated hydroxyaryl compound having a polyoxyalkylene chain with 3 to 130 oxyalkylene units, and iii) formaldehyde, in a weight ratio of i) : ii) of 95 : 5 to 60 : 40, preferably 95 : 5 to 75 : 25, more preferably 95 : 5 to 85 : 15, wherein the sand has a methylene blue value according to DIN EN 933-9 of at least 10 g/kg. The naphthalenesulfonic acid polycondensate is largely clay-insensitive and its dispersibility is independent of the quality of the sand.

Classes IPC  ?

• C04B 24/22 - Leurs produits de condensation
• C04B 28/04 - Ciments Portland
• C04B 28/06 - Ciments alumineux

Abrégé

A cement dispersant comprises component i) and at least one of components ii) and iii). Component i) is a naphthalenesulfonic acid polycondensate being obtainable by a condensation reaction of i-1) a naphthalenesulfonic acid, i-2) an alkoxylated hydroxyaryl compound having a polyoxyalkylene chain with 3 to 130 oxyalkylene units, and i-3) formaldehyde, in a weight ratio of i-1) : i-2) of 95 : 5 to 60 : 40. Component ii) is a phosphorylated polycondensate being obtainable by a condensation reaction of ii-1) an aromatic compound having a phosphate moiety, ii- 2) an alkoxylated hydroxyaryl compound having a polyoxyalkylene chain with 3 to 130 oxyalkylene units, and ii-3) formaldehyde, in a weight ratio of ii-1) : ii-2) of 2 : 98 to 40 : 60. Component iii) is a polycarboxylate ether having a carbon-chain backbone with anionic and/or anionogenic groups and polyoxyalkylene side chains having an average of 3 to 130 oxyalkylene units. The cement dispersant has a good dosage efficiency and a good balance between effectiveness and cost without compromising compressive strength, while avoiding compatibility issues and viscosity increase of the dispersant.

Classes IPC  ?

• C04B 24/22 - Leurs produits de condensation
• C04B 28/04 - Ciments Portland
• C04B 28/06 - Ciments alumineux

Abrégé

A naphthalenesulfonic acid polycondensate is used as a plasticizer in a construction composition comprising sand and at least one cementitious binder. The naphthalenesulfonic acid polycondensate is obtainable by a condensation reaction of i) a naphthalenesulfonic acid, ii) an alkoxylated hydroxyaryl compound having a polyoxyalkylene chain with 3 to 130 oxyalkylene units, and iii) formaldehyde, in a weight ratio of i) : ii) of 95 : 5 to 60 : 40, preferably 95 : 5 to 75 : 25, more preferably 95 : 5 to 85 : 15, wherein the sand has a methylene blue value according to DIN EN 933-9 of at least 10 g/kg. The naphthalenesulfonic acid polycondensate is largely clay-insensitive and its dispersibility is independent of the quality of the sand.

Classes IPC  ?

• C04B 24/22 - Leurs produits de condensation
• C04B 28/04 - Ciments Portland
• C04B 28/06 - Ciments alumineux
• C04B 103/30 - Réducteurs d'eau, plastifiants, entraîneurs d'air

Abrégé

A cement dispersant comprises component i) and at least one of components ii) and iii). Component i) is a naphthalenesulfonic acid polycondensate being obtainable by a condensation reaction of i-1) a naphthalenesulfonic acid, i-2) an alkoxylated hydroxyaryl compound having a polyoxyalkylene chain with 3 to 130 oxyalkylene units, and i-3) formaldehyde, in a weight ratio of i-1) : i-2) of 95 : 5 to 60 : 40. Component ii) is a phosphorylated polycondensate being obtainable by a condensation reaction of ii-1) an aromatic compound having a phosphate moiety, ii- 2) an alkoxylated hydroxyaryl compound having a polyoxyalkylene chain with 3 to 130 oxyalkylene units, and ii-3) formaldehyde, in a weight ratio of ii-1) : ii-2) of 2 : 98 to 40 : 60. Component iii) is a polycarboxylate ether having a carbon-chain backbone with anionic and/or anionogenic groups and polyoxyalkylene side chains having an average of 3 to 130 oxyalkylene units. The cement dispersant has a good dosage efficiency and a good balance between effectiveness and cost without compromising compressive strength, while avoiding compatibility issues and viscosity increase of the dispersant.

Classes IPC  ?

• C04B 28/04 - Ciments Portland
• C04B 28/06 - Ciments alumineux
• C04B 40/00 - Procédés, en général, pour influencer ou modifier les propriétés des compositions pour mortiers, béton ou pierre artificielle, p. ex. leur aptitude à prendre ou à durcir
• C04B 24/22 - Leurs produits de condensation

Abrégé

The present invention suggests geopolymer foam formulation comprising an inorganic binder, a ceramic material, an alkaline activator, an alkyl polyglucoside, a gas phase and water. Moreover, it relates to a process for the manufacture of such formulation by means of mechanical and/or chemical foaming as well as to a process for the manufacture of a hardened geopolymer foam therefrom. It also relates to a geopolymer foam element comprising said hardened geopolymer foam. Finally, the present invention relates to the use of ceramic materials for substituting fly ashes in geopolymer foam formulations. The ceramic material is preferably brick dust.

Classes IPC  ?

• C04B 28/00 - Compositions pour mortiers, béton ou pierre artificielle, contenant des liants inorganiques ou contenant le produit de réaction d'un liant inorganique et d'un liant organique, p. ex. contenant des ciments de polycarboxylates
• C04B 12/00 - Ciments non prévus par les groupes
• C04B 18/16 - DéchetsRésidus provenant de l'industrie du bâtiment ou de l'industrie de la céramique

Abrégé

A shotcrete composition comprising a) a cementitious binder; b) an ettringite formation controller comprising (i) a glyoxylic acid condensate and/or a glyoxylic acid adduct; and c) an alkali-free, aluminum-based shotcrete accelerator. The invention further relates to a process comprising providing a cementitious composition comprising a) a cementitious binder, and b) an ettringite formation controller comprising (i) a glyoxylic acid condensate and/or a glyoxylic acid adduct; admixing an alkali-free, aluminum-based shotcrete accelerator to the cementitious composition to obtain a shotcrete composition; and applying the shotcrete composition onto a surface to obtain a shotcrete structure and allowing the shotcrete structure to harden. The invention also relates to a hardened shotcrete structure obtained by this process.

Classes IPC  ?

• C04B 24/12 - Composés contenant de l'azote
• C04B 28/08 - Ciments de scories
• C04B 22/14 - Acides ou leurs sels comportant du soufre dans la partie anionique, p. ex. sulfures
• C04B 24/26 - Composés macromoléculaires obtenus par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carbone
• C04B 24/00 - Emploi de matières organiques en tant qu'ingrédients actifs pour mortiers, béton ou pierre artificielle, p. ex. emploi de plastifiants
• C04B 24/06 - Acides carboxyliquesLeurs sels, anhydrides ou esters comportant des groupes hydroxyle
• C04B 24/16 - Composés contenant du soufre

Abrégé

43x21277 (dodecacalcium heptaaluminate). Moreover, it suggests a process for the manufacture thereof, a process for the manufacture of a construction chemical composition including water, and the use of the ternary composition in construction chemical compositions comprising knifing fillers, screeds, and repair mortars, tile adhesives, tiling grouts, plasters, base coats and sealings.

Classes IPC  ?

• C04B 28/16 - Compositions pour mortiers, béton ou pierre artificielle, contenant des liants inorganiques ou contenant le produit de réaction d'un liant inorganique et d'un liant organique, p. ex. contenant des ciments de polycarboxylates contenant des ciments de sulfate de calcium contenant de l'anhydrite
• C04B 28/06 - Ciments alumineux
• C04B 28/14 - Compositions pour mortiers, béton ou pierre artificielle, contenant des liants inorganiques ou contenant le produit de réaction d'un liant inorganique et d'un liant organique, p. ex. contenant des ciments de polycarboxylates contenant des ciments de sulfate de calcium
• C04B 111/00 - Fonction, propriétés ou utilisation des mortiers, du béton ou de la pierre artificielle
• C04B 111/72 - Compositions utilisées pour réparer les bâtiments existants ou les matériaux de construction existants
• C04B 111/60 - Revêtements de sol
• C04B 111/70 - Coulis

Abrégé

The present invention concerns a grout injection device (10) and a method for injecting grout into a longitudinal hole, e.g. a borehole. The grout injection device (10) comprises a hose (11) having at least three separate lines (12,13,14) defined in the interior of said hose (11); a packer system (16) arranged at one end (15) of said hose (11), said packer system comprising a chamber (17), said chamber (17) being provided with an inlet opening (18) into which said at least three lines (12,13,24) of said hose (11) lead and one or more discharge openings (22,23,24) for releasing fluid from said chamber (17) into the surrounding of the packer system; and a pump system (30) arranged at the opposite end (28) of said hose (11), configured to inject fluids into said at least three lines (12,13,14) of said hose (11).

Classes IPC  ?

• E02D 3/12 - Consolidation par mise en place dans le sol de produits solidifiants ou obturant les pores
• E21D 20/02 - Mise en place des boulons d'ancrage avec dispositions pour le scellement

Abrégé

The present invention concerns a grout injection device (10) and a method for injecting grout into a longitudinal hole, e.g. a borehole. The grout injection device (10) comprises a hose (11) having at least three separate lines (12,13,14) defined in the interior of said hose (11); a packer system (16) arranged at one end (15) of said hose (11), said packer system comprising a chamber (17), said chamber (17) being provided with an inlet opening (18) into which said at least three lines (12,13,24) of said hose (11) lead and one or more discharge openings (22,23,24) for releasing fluid from said chamber (17) into the surrounding of the packer system; and a pump system (30) arranged at the opposite end (28) of said hose (11), configured to inject fluids into said at least three lines (12,13,14) of said hose (11).

Classes IPC  ?

• E02D 3/12 - Consolidation par mise en place dans le sol de produits solidifiants ou obturant les pores
• E21D 9/00 - Tunnels ou galeries, avec ou sans revêtementsProcédés ou appareils pour leur exécutionTracé des tunnels ou des galeries
• E21D 20/02 - Mise en place des boulons d'ancrage avec dispositions pour le scellement

Abrégé

The present invention provides a concrete admixture which has excellent fluidity retention properties for a period of time as long as 120 minutes required until the placement of the concrete admixture without deteriorating the strength thereof, can have a proper setting time and therefore can achieve a handling time and workability, and can be prevented from the occurrence of bleeding.?This concrete admixture comprises (A) a lignin derivative, (B) a copolymer having a hydrolysable group, and (C) a (meth)acrylic viscosity modifier component, in which (B) the copolymer having a hydrolysable group is a copolymer of at least two monomers including (b1) an ethylenically unsaturated monomer having a hydrolysable group and (b2) an ethylenically unsaturated monomer having a polyalkylene oxide ether chain.

Classes IPC  ?

• C04B 24/06 - Acides carboxyliquesLeurs sels, anhydrides ou esters comportant des groupes hydroxyle
• C04B 24/18 - Acide ligninesulfonique ou ses dérivés, p. ex. lessive sulfitique
• C04B 24/26 - Composés macromoléculaires obtenus par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carbone
• C04B 28/02 - Compositions pour mortiers, béton ou pierre artificielle, contenant des liants inorganiques ou contenant le produit de réaction d'un liant inorganique et d'un liant organique, p. ex. contenant des ciments de polycarboxylates contenant des ciments hydrauliques autres que ceux de sulfate de calcium
• C04B 28/08 - Ciments de scories

Abrégé

Example embodiments provide systems and methods for formulating and evaluating a construction composition (such as a mixture for concrete, asphalt, mortar, etc.). According to exemplary embodiments, a predictive model, artificial intelligence, machine learning algorithm, etc., may be trained using historical performance data and current deployment information. Based on a job specification that identifies various requirements for the construction composition and a set of available inputs (e.g., raw materials, mixing techniques, etc.), the model, AI, or algorithm, may output one or more formulations that meet or best approximate the requirements. The formulations may be provided to a simulation to estimate or predict their performance. The performance characteristics of the output formulation(s) may be displayed. Optionally, the system may control mixing machinery to produce the formulation. Some embodiments may use these capabilities to evaluate an existing or proposed construction composition, rather than proposing a new construction composition.

Classes IPC  ?

• G06Q 10/04 - Prévision ou optimisation spécialement adaptées à des fins administratives ou de gestion, p. ex. programmation linéaire ou "problème d’optimisation des stocks"
• G06N 20/00 - Apprentissage automatique
• G06Q 10/06 - Ressources, gestion de tâches, des ressources humaines ou de projetsPlanification d’entreprise ou d’organisationModélisation d’entreprise ou d’organisation

Abrégé

The present invention provides a concrete admixture which has excellent fluidity retention properties for a period of time as long as 120 minutes required until the placement of the concrete admixture without deteriorating the strength thereof, can have a proper setting time and therefore can achieve a handling time and workability, and can be prevented from the occurrence of bleeding.　This concrete admixture comprises (A) a lignin derivative, (B) a copolymer having a hydrolysable group, and (C) a (meth)acrylic viscosity modifier component, in which (B) the copolymer having a hydrolysable group is a copolymer of at least two monomers including (b1) an ethylenically unsaturated monomer having a hydrolysable group and (b2) an ethylenically unsaturated monomer having a polyalkylene oxide ether chain.

Classes IPC  ?

• C04B 24/18 - Acide ligninesulfonique ou ses dérivés, p. ex. lessive sulfitique
• C04B 24/06 - Acides carboxyliquesLeurs sels, anhydrides ou esters comportant des groupes hydroxyle
• C04B 24/26 - Composés macromoléculaires obtenus par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carbone
• C04B 28/02 - Compositions pour mortiers, béton ou pierre artificielle, contenant des liants inorganiques ou contenant le produit de réaction d'un liant inorganique et d'un liant organique, p. ex. contenant des ciments de polycarboxylates contenant des ciments hydrauliques autres que ceux de sulfate de calcium
• C04B 28/08 - Ciments de scories

Abrégé

Example embodiments provide systems and methods for performing quality control of a construction composition. According to exemplary embodiments, a predictive model, artificial intelligence, machine learning algorithm, etc., may be trained using historical performance data and current deployment information. Based on a job specification that identifies various requirements for the construction composition and a set of available inputs, the AI/ML/model may output one or more formulations that meet or best approximate the requirements, and an initial batch of the construction composition may be produced. During or after deployment of the construction composition, information about the composition's performance may be received and applied to the AI/ML/model. The system may make real-time updates to the construction composition to improve the consistency or performance of the construction composition, within predefined acceptable change parameters. Optionally, the system may control mixing machinery to produce the updated construction composition.

Classes IPC  ?

• C04B 40/00 - Procédés, en général, pour influencer ou modifier les propriétés des compositions pour mortiers, béton ou pierre artificielle, p. ex. leur aptitude à prendre ou à durcir
• G05B 13/04 - Systèmes de commande adaptatifs, c.-à-d. systèmes se réglant eux-mêmes automatiquement pour obtenir un rendement optimal suivant un critère prédéterminé électriques impliquant l'usage de modèles ou de simulateurs
• G05B 13/02 - Systèmes de commande adaptatifs, c.-à-d. systèmes se réglant eux-mêmes automatiquement pour obtenir un rendement optimal suivant un critère prédéterminé électriques
• G06Q 50/08 - Construction
• B28C 9/00 - Disposition générale ou schéma d'installation
• B28C 7/04 - Alimentation ou dosage des ingrédients

Abrégé

Additives for cementitious compositions are stabilized against particle agglomeration. The additive may be provided in an aqueous liquid admixture composition for cementitious compositions that includes the additive, a polymer thickener, and water, where the particles are stabilized against agglomeration and the admixture is stabilized against physical separation. The method for stabilizing the additive against particle agglomeration utilizes a pH sensitive thickener that may be activated through neutralization of acid groups on the polymer thickener. Methods of making cementitious compositions and hardened cementitious structures using the stabilized additive and admixture are also disclosed.

Classes IPC  ?

• C04B 40/00 - Procédés, en général, pour influencer ou modifier les propriétés des compositions pour mortiers, béton ou pierre artificielle, p. ex. leur aptitude à prendre ou à durcir
• C04B 14/06 - QuartzSable
• C04B 24/16 - Composés contenant du soufre
• C04B 103/00 - Fonctions ou propriétés de l'ingrédient actif
• C04B 103/44 - Agents épaississants, gélifiants ou augmentant la viscosité

Abrégé

An additive for cementitious compositions for mitigating alkali-silica reaction (ASR) includes particles of alkali-silica reaction mitigating that are against agglomeration. The additive may be provided in an aqueous liquid admixture composition for cementitious compositions that includes the alkali-silica reaction mitigating additive, a thickening agent and water. The admixture utilizes a pH sensitive thickener in combination with pH adjustment to stabilize the particles of alkali-silica reaction mitigating additive against agglomeration. The admixture composition is used to mitigate the alkali-silica reactions in a cementitious composition. Methods of making the admixture, cementitious compositions and hardened cementitious structures are also disclosed.

Classes IPC  ?

• C04B 28/04 - Ciments Portland
• C04B 22/06 - OxydesHydroxydes
• C04B 22/08 - Acides ou leurs sels
• C04B 24/26 - Composés macromoléculaires obtenus par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carbone
• C04B 18/14 - DéchetsRésidus provenant de procédés métallurgiques

Abrégé

Example embodiments provide systems and methods for formulating and evaluating a construction admixture (such as an admixture for concrete, asphalt, mortar, etc.). According to exemplary embodiments, a predictive model, artificial intelligence, machine learning algorithm, etc., may be trained using historical performance data and current deployment information. Based on a job specification that identifies various requirements for the construction composition and a set of available inputs (e.g., raw materials, mixing techniques, etc.), the model, AI, or algorithm, may output one or more construction admixtures that meet or best approximate the requirements. The construction admixtures may be provided to a simulation to estimate or predict their performance. The performance characteristics of the output construction admixture(s) may be displayed. Optionally, the system may control mixing machinery to produce the construction admixture. Some embodiments may use these capabilities to evaluate an existing or proposed construction admixture, rather than proposing a new construction admixture.

Classes IPC  ?

• G06Q 50/08 - Construction
• G06Q 10/04 - Prévision ou optimisation spécialement adaptées à des fins administratives ou de gestion, p. ex. programmation linéaire ou "problème d’optimisation des stocks"
• G06Q 10/08 - Logistique, p. ex. entreposage, chargement ou distributionGestion d’inventaires ou de stocks
• G16C 20/70 - Apprentissage automatique, exploration de données ou chimiométrie
• G16C 20/30 - Prévision des propriétés des composés, des compositions ou des mélanges chimiques

Abrégé

A limestone calcined clay cement construction composition comprises a) a cementitious binder comprising one or more calcium silicate mineral phases and one or more calcium aluminate mineral phases, and having a Blaine surface area of at least 3800 cm2/g, in an amount of 180 to 400 kg per m³ of the freshly mixed construction composition; b) a supplementary cementitious material having a Dv90 of less than 200 µm, in a total amount of 50 to 100 parts by weight, relative to 100 parts by weight of cementitious binder a), the supplementary cementitious material comprising (b-1) a calcined clay material and (b-2) a carbonate rock powder in a weight ratio of (b-1) to (b-2) in the range of 0.5 to 2; c) optionally, an extraneous aluminate source; d) a sulfate source; and e) a polyol in an amount of 0.3 to 2.5 wt.-%, relative to the amount of cementitious binder a). The composition contains available aluminate, calculated as Al(OH)4, from the calcium aluminate mineral phases plus the optional extraneous aluminate source, per 100 g of cementitious binder a), in a total amount of at least 0.08 mol, if the amount of cementitious binder a) is in the range of 180 to less than 220 kg per m³ of the freshly mixed composition, at least 0.06 mol, if the amount of cementitious binder a) is in the range of 220 to less than 280 kg per m³ of the freshly mixed composition, and at least 0.05 mol, if the amount of cementitious binder a) is 280 kg or more per m³ of the freshly mixed composition; and the molar ratio of total available aluminate to sulfate is 0.4 to 2.0. The construction composition further comprises f) an ettringite formation controller comprising (i) glyoxylic acid, a glyoxylic acid salt and/or a glyoxylic acid derivative; and (ii) at least one of (ii-a) a borate source and (ii-b) a carbonate source, wherein the carbonate source is selected from inorganic carbonates having an aqueous solubility of 0.1 g·L-1 or more, organic carbonates, and mixtures thereof; and g) a co-retarder selected from (g-1) a-hydroxy monocarboxylic acids and salts thereof, (g-2) phosphonic acids and salts thereof, (g-3) polycarboxylic acids and salts thereof, and mixtures thereof. The limestone calcined clay cement construction composition is a reduced carbon footprint composition and exhibits high early strength, high final strength, sufficient open time and high durability. Ingredients of the construction composition are abundantly available.

Classes IPC  ?

• C04B 28/14 - Compositions pour mortiers, béton ou pierre artificielle, contenant des liants inorganiques ou contenant le produit de réaction d'un liant inorganique et d'un liant organique, p. ex. contenant des ciments de polycarboxylates contenant des ciments de sulfate de calcium
• C04B 28/16 - Compositions pour mortiers, béton ou pierre artificielle, contenant des liants inorganiques ou contenant le produit de réaction d'un liant inorganique et d'un liant organique, p. ex. contenant des ciments de polycarboxylates contenant des ciments de sulfate de calcium contenant de l'anhydrite

Abrégé

44–, from the calcium aluminate mineral phases plus the optional extraneous aluminate source, per 100 g of cementitious binder a); and the molar ratio of total available aluminate to sulfate is 0.4 to 2.0. The construction composition exhibits high early strength and sufficient open time. The advantageous effects are readily achievable for a variety of cements with varying elemental compositions.

Classes IPC  ?

• C04B 28/04 - Ciments Portland
• C04B 28/06 - Ciments alumineux
• C04B 28/14 - Compositions pour mortiers, béton ou pierre artificielle, contenant des liants inorganiques ou contenant le produit de réaction d'un liant inorganique et d'un liant organique, p. ex. contenant des ciments de polycarboxylates contenant des ciments de sulfate de calcium

Abrégé

A cement-reduced construction composition comprises a) a cementitious binder comprising one or more calcium silicate mineral phases and one or more calcium aluminate mineral phases, and having a Blaine surface area of at least 3800 cm2/g, in an amount of 180 to 400 kg per m³ of the freshly mixed construction composition; b) a fine material having a Dv90 of less than 200 µm, selected from alkali-activatable binders, rock powders and inorganic pigments, or mixtures thereof, in a total amount of 20 to 200 parts by weight, relative to 100 parts by weight of cementitious binder a); c) optionally, an extraneous aluminate source; d) a sulfate source; and e) a polyol in an amount of 0.3 to 2.5 wt.-%, relative to the amount of cementitious binder a). The composition contains available aluminate, calculated as Al(OH)4?, from the calcium aluminate mineral phases plus the optional extraneous aluminate source, per 100 g of cementitious binder a), in a total amount of at least 0.08 mol, if the amount of cementitious binder a) is in the range of 180 to less than 220 kg per m³ of the freshly mixed composition, at least 0.06 mol, if the amount of cementitious binder a) is in the range of 220 to less than 280 kg per m³ of the freshly mixed composition, and at least 0.05 mol, if the amount of cementitious binder a) is 280 kg or more per m³ of the freshly mixed composition; and the molar ratio of total available aluminate to sulfate is 0.4 to 2.0. The construction composition further comprises f) an ettringite formation controller comprising (i) glyoxylic acid, a glyoxylic acid salt and/or a glyoxylic acid derivative; and (ii) at least one of (ii-a) a borate source and (ii-b) a carbonate source, wherein the carbonate source is selected from inorganic carbonates having an aqueous solubility of 0.1 g·L-1 or more, organic carbonates, and mixtures thereof; and g) a co-retarder selected from (g-1) ?-hydroxy monocarboxylic acids and salts thereof, (g-2) phosphonic acids and salts thereof, (g-3) polycarboxylic acids and salts thereof, and mixtures thereof. The cement-reduced construction composition is a reduced carbon footprint construction composition and exhibits high early strength, high final strength, sufficient open time, high durability, and reduced shrinkage compared to ordinary Portland cement based mixes. Ingredients of the construction composition are abundantly available.

Classes IPC  ?

• C04B 28/04 - Ciments Portland
• C04B 28/14 - Compositions pour mortiers, béton ou pierre artificielle, contenant des liants inorganiques ou contenant le produit de réaction d'un liant inorganique et d'un liant organique, p. ex. contenant des ciments de polycarboxylates contenant des ciments de sulfate de calcium

Abrégé

A set control composition for cementitious systems comprises a retarder (a) selected from (a-1) polymeric polycarboxylic acids selected from homopolymers and copolymers of ?,?-ethylenically unsaturated carboxylic acids; and copolymers of at least one a, ?-ethylenically unsaturated carboxylic acid and at least one sulfo group containing monomer; and salts thereof, whose milliequivalent number of carboxyl groups is 3.0 meq/g or higher, preferably 3.0 to 17.0 meq/g, and having a molecular weight 25,000 g/mol or less, assuming all the carboxyl groups to be in unneutralized form, (a-2) phosphonic acids and salts thereof, (a-3) low molecular weight polycarboxylic acids and salts thereof, and mixtures thereof, (b) at least one of (b-1) a borate source and (b-2) a carbonate source, wherein the carbonate source is selected from inorganic carbonates having an aqueous solubility of 0.1 g-L·1 or more at 25 °C, and organic carbonates, in a weight ratio of b) to a) in the range of 0.1 to 10, (c) a polyol having at least 3 alcoholic hydroxyl groups in its molecule, in a weight ratio of c) to a) in the range of 0.2 to 4, and (d) a dispersant. The set control composition effectively improves workability of cementitious systems for prolonged periods of time without compromising early compressive strength. The compositions show sufficient open time, i.e., the time until initial setting, good workability during said open time as characterized, for example by adequate slump flow over time, and fast setting. The invention further relates to a construction composition comprising i) a cementitious binder comprising one or more calcium silicate mineral phases and one or more calcium aluminate mineral phases, ii) optionally, an extraneous aluminate source, iii) a sulfate source, and iv) the set control composition. The construction composition contains 0.05 to 0.2 mol of total available aluminate, calculated as AI(OH)4~ from the calcium aluminate mineral phases plus the optional extraneous aluminate source, per 100 g of cementitious binder i), and the molar ratio of total available aluminate to sulfate is 0.4 to 2.0.

Classes IPC  ?

• C04B 28/14 - Compositions pour mortiers, béton ou pierre artificielle, contenant des liants inorganiques ou contenant le produit de réaction d'un liant inorganique et d'un liant organique, p. ex. contenant des ciments de polycarboxylates contenant des ciments de sulfate de calcium
• C04B 28/16 - Compositions pour mortiers, béton ou pierre artificielle, contenant des liants inorganiques ou contenant le produit de réaction d'un liant inorganique et d'un liant organique, p. ex. contenant des ciments de polycarboxylates contenant des ciments de sulfate de calcium contenant de l'anhydrite

Abrégé

A manufacturing method includes: (1) incorporating at least one soluble, calcium, magnesium, or other divalent cation-containing additive into a concrete mixture including aggregates prone to alkali-silica reaction; and (2) curing the concrete mixture to form a concrete product.

Classes IPC  ?

• C04B 22/08 - Acides ou leurs sels
• C04B 14/06 - QuartzSable
• C04B 14/22 - Verre
• C04B 20/10 - Revêtement ou imprégnation
• C04B 22/12 - Acides ou leurs sels comportant des halogènes dans la partie anionique, p. ex. chlorure de calcium
• C04B 28/02 - Compositions pour mortiers, béton ou pierre artificielle, contenant des liants inorganiques ou contenant le produit de réaction d'un liant inorganique et d'un liant organique, p. ex. contenant des ciments de polycarboxylates contenant des ciments hydrauliques autres que ceux de sulfate de calcium
• C04B 103/60 - Agents de protection contre la dégradation chimique, physique ou biologique
• C04B 111/20 - Résistance envers les attaques chimiques, physiques ou biologiques

Abrégé

A cement-reduced construction composition comprises a) a cementitious binder comprising one or more calcium silicate mineral phases and one or more calcium aluminate mineral phases, and having a Blaine surface area of at least 3800 cm244–, from the calcium aluminate mineral phases plus the optional extraneous aluminate source, per 100 g of cementitious binder a), in a total amount of at least 0.08 mol, if the amount of cementitious binder a) is in the range of 180 to less than 220 kg per m³ of the freshly mixed composition, at least 0.06 mol, if the amount of cementitious binder a) is in the range of 220 to less than 280 kg per m³ of the freshly mixed composition, and at least 0.05 mol, if the amount of cementitious binder a) is 280 kg or more per m³ of the freshly mixed composition; and the molar ratio of total available aluminate to sulfate is 0.4 to 2.0. The construction composition further comprises f) an ettringite formation controller comprising (i) glyoxylic acid, a glyoxylic acid salt and/or a glyoxylic acid derivative; and (ii) at least one of (ii-a) a borate source and (ii-b) a carbonate source, wherein the carbonate source is selected from inorganic carbonates having an aqueous solubility of 0.1 g·L-1 or more, organic carbonates, and mixtures thereof; and g) a co-retarder selected from (g-1) α-hydroxy monocarboxylic acids and salts thereof, (g-2) phosphonic acids and salts thereof, (g-3) polycarboxylic acids and salts thereof, and mixtures thereof. The cement-reduced construction composition is a reduced carbon footprint construction composition and exhibits high early strength, high final strength, sufficient open time, high durability, and reduced shrinkage compared to ordinary Portland cement based mixes. Ingredients of the construction composition are abundantly available.

Classes IPC  ?

• C04B 28/04 - Ciments Portland
• C04B 28/14 - Compositions pour mortiers, béton ou pierre artificielle, contenant des liants inorganiques ou contenant le produit de réaction d'un liant inorganique et d'un liant organique, p. ex. contenant des ciments de polycarboxylates contenant des ciments de sulfate de calcium

Abrégé

A limestone calcined clay cement construction composition comprises a) a cementitious binder comprising one or more calcium silicate mineral phases and one or more calcium aluminate mineral phases, and having a Blaine surface area of at least 3800 cm244–, from the calcium aluminate mineral phases plus the optional extraneous aluminate source, per 100 g of cementitious binder a), in a total amount of at least 0.08 mol, if the amount of cementitious binder a) is in the range of 180 to less than 220 kg per m³ of the freshly mixed composition, at least 0.06 mol, if the amount of cementitious binder a) is in the range of 220 to less than 280 kg per m³ of the freshly mixed composition, and at least 0.05 mol, if the amount of cementitious binder a) is 280 kg or more per m³ of the freshly mixed composition; and the molar ratio of total available aluminate to sulfate is 0.4 to 2.0. The construction composition further comprises f) an ettringite formation controller comprising (i) glyoxylic acid, a glyoxylic acid salt and/or a glyoxylic acid derivative; and (ii) at least one of (ii-a) a borate source and (ii-b) a carbonate source, wherein the carbonate source is selected from inorganic carbonates having an aqueous solubility of 0.1 g·L-1 or more, organic carbonates, and mixtures thereof; and g) a co-retarder selected from (g-1) α-hydroxy monocarboxylic acids and salts thereof, (g-2) phosphonic acids and salts thereof, (g-3) polycarboxylic acids and salts thereof, and mixtures thereof. The limestone calcined clay cement construction composition is a reduced carbon footprint composition and exhibits high early strength, high final strength, sufficient open time and high durability. Ingredients of the construction composition are abundantly available.

Classes IPC  ?

• C04B 28/14 - Compositions pour mortiers, béton ou pierre artificielle, contenant des liants inorganiques ou contenant le produit de réaction d'un liant inorganique et d'un liant organique, p. ex. contenant des ciments de polycarboxylates contenant des ciments de sulfate de calcium
• C04B 28/16 - Compositions pour mortiers, béton ou pierre artificielle, contenant des liants inorganiques ou contenant le produit de réaction d'un liant inorganique et d'un liant organique, p. ex. contenant des ciments de polycarboxylates contenant des ciments de sulfate de calcium contenant de l'anhydrite

Abrégé

A set control composition for cementitious systems comprises a retarder (a) selected from (a-1) polymeric polycarboxylic acids selected from homopolymers and copolymers of α,β-ethylenically unsaturated carboxylic acids; and copolymers of at least one a, β-ethylenically unsaturated carboxylic acid and at least one sulfo group containing monomer; and salts thereof, whose milliequivalent number of carboxyl groups is 3.0 meq/g or higher, preferably 3.0 to 17.0 meq/g, and having a molecular weight 25,000 g/mol or less, assuming all the carboxyl groups to be in unneutralized form, (a-2) phosphonic acids and salts thereof, (a-3) low molecular weight polycarboxylic acids and salts thereof, and mixtures thereof, (b) at least one of (b-1) a borate source and (b-2) a carbonate source, wherein the carbonate source is selected from inorganic carbonates having an aqueous solubility of 0.1 g-L·1 or more at 25 °C, and organic carbonates, in a weight ratio of b) to a) in the range of 0.1 to 10, (c) a polyol having at least 3 alcoholic hydroxyl groups in its molecule, in a weight ratio of c) to a) in the range of 0.2 to 4, and (d) a dispersant. The set control composition effectively improves workability of cementitious systems for prolonged periods of time without compromising early compressive strength. The compositions show sufficient open time, i.e., the time until initial setting, good workability during said open time as characterized, for example by adequate slump flow over time, and fast setting. The invention further relates to a construction composition comprising i) a cementitious binder comprising one or more calcium silicate mineral phases and one or more calcium aluminate mineral phases, ii) optionally, an extraneous aluminate source, iii) a sulfate source, and iv) the set control composition. The construction composition contains 0.05 to 0.2 mol of total available aluminate, calculated as AI(OH)4~ from the calcium aluminate mineral phases plus the optional extraneous aluminate source, per 100 g of cementitious binder i), and the molar ratio of total available aluminate to sulfate is 0.4 to 2.0.

Classes IPC  ?

• C04B 28/14 - Compositions pour mortiers, béton ou pierre artificielle, contenant des liants inorganiques ou contenant le produit de réaction d'un liant inorganique et d'un liant organique, p. ex. contenant des ciments de polycarboxylates contenant des ciments de sulfate de calcium
• C04B 40/00 - Procédés, en général, pour influencer ou modifier les propriétés des compositions pour mortiers, béton ou pierre artificielle, p. ex. leur aptitude à prendre ou à durcir
• C04B 28/16 - Compositions pour mortiers, béton ou pierre artificielle, contenant des liants inorganiques ou contenant le produit de réaction d'un liant inorganique et d'un liant organique, p. ex. contenant des ciments de polycarboxylates contenant des ciments de sulfate de calcium contenant de l'anhydrite

Abrégé

A construction composition comprises a) a cementitious binder comprising one or more calcium silicate mineral phases and one or more calcium aluminate mineral phases; b) optionally, an extraneous aluminate source; c) a sulfate source; d) an ettringite formation controller comprising (i) glyoxylic acid, a glyoxylic acid salt and/or a glyoxylic acid derivative; and (ii) at least one of a borate source and a carbonate source, wherein the carbonate source is selected from inorganic carbonates having an aqueous solubility of 0.1 g·L-1 or more, organic carbonates, and mixtures thereof; and e) a polyol in an amount of 0.2 to 2.5 wt.-%, relative to the amount of cementitious binder a). The composition contains 0.05 to 0.2 mol of total available aluminate, calculated as Al(OH)4?, from the calcium aluminate mineral phases plus the optional extraneous aluminate source, per 100 g of cementitious binder a); and the molar ratio of total available aluminate to sulfate is 0.4 to 2.0. The construction composition exhibits high early strength and sufficient open time. The advantageous effects are readily achievable for a variety of cements with varying elemental compositions.

Classes IPC  ?

• C04B 28/04 - Ciments Portland
• C04B 28/06 - Ciments alumineux
• C04B 28/14 - Compositions pour mortiers, béton ou pierre artificielle, contenant des liants inorganiques ou contenant le produit de réaction d'un liant inorganique et d'un liant organique, p. ex. contenant des ciments de polycarboxylates contenant des ciments de sulfate de calcium