A wireless communication device includes: a temperature sensor measuring temperature of concrete within sheathing boards contacting therewith, and transmits signals of the temperature sensor by radio; a flange including a bottom surface flushing with a contact surface of an opening being formed in the sheathing boards; an insertion portion in a tapered conical shape protruding to an inside of a formwork from the flange, and holding the temperature sensor; a head portion with a diameter less than that of the flange exposing to an outside of the formwork from the flange, the wireless communication device is integrated with the concrete whereby: the head portion is fixed by means of a fixing tool until the formwork has not been separated; and the insertion portion is held by hardened and contracted concrete after the formwork has been separated.
H04L 67/12 - Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
2.
METHOD FOR MANAGING CONCRETE CASTING AND WIRELESS COMMUNICATION DEVICE
Provided is a wireless communication device which can measure a state amount of concrete also during a period from separation of a formwork until achievement of a predetermined strength, and with which defect of the concrete after detachment of the communication device is not caused easily. This wireless communication device 40 comprises a temperature sensor S2 which measures the temperature of concrete C on the inside of sheathing boards 1, 2 in contact and wirelessly transmits a signal S2 of the temperature sensor. This wireless communication device 40 comprises a flange 3 which includes, in an opening 1a formed in the sheathing board 1, a bottom surface 3a flushing with a contact surface 3a of the opening 1a, an insertion portion 5 which protrudes from the flange 3 to the inside of a formwork, has a tapered conical shape, and holds the temperature sensor S2, and a head portion 4 which is exposed from the flange 3 to the outside of the formwork and has a smaller diameter than that of the flange 3, and this wireless communication device 40 is integrated with the concrete C by fixing tools 6 fixing the head portion 4 to the sheathing board 1 in a period until the separation of the formwork and, after the separation of the formwork, is integrated with the concrete C by the hardened and shrunk concrete C holding the insertion portion 5.
A material monitoring system (1) for casting concrete includes a monitoring device (11) having a body (113) and an integrated sensor (111), and the monitoring device (11) is an internet of things (IoT) device. The body (113) of the monitoring device (11) is installed with a power supply (1133) and a central processing unit (1131). The integrated sensor (111) is used to measure the real-time temperature and real-time electrical resistance of concrete. Further, the integrated sensor (111) is connected to the bottom surface of the body (113), and the integrated sensor (111), the power supply (1133), and the central processing unit (1131) are electrically connected. The integrated sensor (111) is immersed in the concrete while the body (113) is situated on the surface of the concrete when the monitoring device (11) is used.
a) to a contact surface (2). A sensor-housing case (17) is provided with a lower portion of the case (7), the sensor-housing case (17) being inserted into the through-hole (16), a bottom face of the sensor-housing case (17) facing concrete. And, a concrete temperature-detecting sensor (19) for detecting surface temperature of the concrete is housed in the sensor-housing case (17).
E04G 9/05 - Forming boards or similar elements the form surface being of plastics
E04G 9/10 - Forming or shuttering elements for general use with additional peculiarities such as surface shaping, insulating or heating, permeability to water or air
G01K 1/14 - SupportsFastening devicesArrangements for mounting thermometers in particular locations
G01K 1/02 - Means for indicating or recording specially adapted for thermometers
E04G 9/06 - Forming boards or similar elements the form surface being of metal
B28B 17/00 - Details of, or accessories for, apparatus for shaping the materialAuxiliary measures taken in connection with such shaping
B28B 7/42 - MouldsCoresMandrels characterised by means for modifying the properties of the moulding material for heating or cooling, e.g. steam jackets
A recyclable formwork adds a new function without destroying other functions of the recyclable formwork. The recyclable formwork includes a main unit including a contact surface contacting with cast concrete, a non-contact surface parallel and opposite to the contact surface, and a plurality of ribs projecting from the non-contact surface and reinforcing the main unit. A case is housed between the plurality of ribs and fixed on the non-contact surface. A circuit is stored in the case. A highest point of the case at the side of the non-contact surface is not higher than a highest point of upper ends of the plurality of ribs.
E04G 9/10 - Forming or shuttering elements for general use with additional peculiarities such as surface shaping, insulating or heating, permeability to water or air
E04G 17/065 - Tying means, the tensional elements of which are threaded to enable their fastening or tensioning
E04G 9/04 - Forming boards or similar elements the form surface being of wood
Provided is a recyclable formwork capable of properly detecting, without impairing the function of the recyclable formwork, the temperature of concrete installed between formworks actually on site. The recyclable formwork comprises: a recyclable formwork main body (1) having a plurality of ribs (3, 4); a housing (7) housed between the ribs (3, 4) and fixed to the side of a non-contact surface (1a); and a circuit housed in the housing (7). A through-hole (16) passing through from the non-contact surface (1a) to a contact surface (2) is opened in the recyclable formwork main body (1) in correspondence to the position at which the housing (7) is fixed. A sensor housing case (17) passing through the through-hole (16) and having a bottom surface (17a) facing concrete (18) is provided at a lower part of the housing (7). A concrete temperature detection sensor (19) for detecting the surface temperature of the concrete (18) is housed in the sensor housing case (17).
Provided is a recyclable formwork whereby novel functions can be added to a recyclable formwork without compromising the functions of the recyclable formwork. The recyclable formwork includes a contact surface (2) for contact with laid concrete; a non-contact surface (1a) positioned parallel to the contact surface (2) and opposite from the non-contact surface; a recyclable formwork main unit (1) having a plurality of ribs (3, 4, 5, 6) protruding from the non-contact surface (1a) on the side opposite that of the contact surface (2), and reinforcing the recyclable-accommodating formwork (1); a case (7) housed between the ribs (5, 5) and fixed to the non-contact surface (1a) side; and a circuit (78) housed inside the case (7). The highest point of the case (7) on the non-contact surface (1a) side is at a height equal to or lower than the highest point of the top end of the plurality of ribs (3, 4, 5, 6).
Provided is a temporary post joint capable of shortening a working term drastically while keeping high the degree of freedom for a slab design. The temporary post joint (10) is formed usably in a temporary structure, which is constituted to include a first temporary post (2) and a second temporary post (5) to be arranged in a higher floor. The temporary structure includes a bottom face, which is so formed as can be connected to the upper end portion (2b) of the first temporary post (2), and an upper face, which is so formed as can be connected to the lower end portion (5a) of the second temporary post (5). The first temporary post (2) and the second temporary post (5) are so vertically connected as can engage with reinforcing iron bars to be arranged and as are integrally held in slabs even after the concrete placed in the field in contact with the reinforcing iron bars was hardened/solidified. The field-placed concretes of the upper and lower floors can be simultaneously hardened/solidified in parallel so that the working term can be drastically shortened.
E04G 11/48 - Supporting structures for shutterings or frames for floors or roofs
E04B 1/16 - Structures made from masses, e.g. concrete, cast or similarly formed in situ with or without making use of additional elements, such as permanent forms, sub-structures to be coated with load-bearing material
patents
