The disclosure provides a paving machine and related methods. In one example, a paving machine includes a first group of sprayers positioned on an underside of a body of the paving machine, and a second group of sprayers positioned downstream of the first group. The first group of sprayers dispense a first product on an existing road and the second group of sprayers dispense a second product over the first product. The paving machine includes a channel positioned downstream of the second group of sprayers to dispense an asphalt mixture over the second product, and a screed positioned adjacent to the channel in contact with the asphalt mixture.
E01C 19/48 - Machines, tools, or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for laying-down the materials and consolidating them, or finishing the surface
2.
Machine, system and method for resurfacing existing roads using premixed stress absorbing membrane interlayer (SAMI) material
Various implementations include a machine for resurface existing roads. The machine may include a premixed stress absorbing membrane interlayer (SAMI) material distribution component configured to distribute a premixed SAMI material on an existing road. The distributed premixed SAMI material may include a mixture and/or combination of binding material and pre-cut fiber material. The machine may also include a channel positioned adjacent and downstream of the premixed SAMI material distribution component. The channel may be configured to supply an asphalt mixture directly over the premixed SAMI material. Additionally, the machine may include a screed positioned adjacent the channel. The screed may be positioned to contact the asphalt mixture.
E01C 19/48 - Machines, tools, or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for laying-down the materials and consolidating them, or finishing the surface
E01C 23/04 - Devices for laying reinforcing elements or dowel barsRemovable supports for reinforcing elementsDevices, e.g. removable forms, for making essentially horizontal ducts in paving, e.g. for prestressed reinforcement
E01C 19/21 - Machines, tools, or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for distributing granular or liquid materials for simultaneously but separately applying liquid material and granular or pulverulent material, e.g. bitumen and grit, with or without spreading
E01C 7/18 - Coherent pavings made in situ made of road-metal and binders of road-metal and bituminous binders
E01C 7/32 - Coherent pavings made in situ made of road-metal and binders of courses of different kind made in situ
E01C 7/26 - Coherent pavings made in situ made of road-metal and binders of road-metal and bituminous binders mixed with other materials, e.g. cement, rubber, leather, fibre
A method of resurfacing exposed surfaces of existing roads, and a resurfaced road. The method may include forming stress absorbing membrane interlayers (SAMIs) over the exposed surface of the existing road. The SAMIs may include a first layer of a binding material and a fiber material. The method may also include disposing an asphalt mixture directly over the SAMIs. The disposed asphalt mixture may cover the SAMIs. Additionally, the method may include shaping the asphalt mixture disposed over the SAMIs.
E01C 19/21 - Machines, tools, or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for distributing granular or liquid materials for simultaneously but separately applying liquid material and granular or pulverulent material, e.g. bitumen and grit, with or without spreading
E01C 19/48 - Machines, tools, or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for laying-down the materials and consolidating them, or finishing the surface
E01C 23/04 - Devices for laying reinforcing elements or dowel barsRemovable supports for reinforcing elementsDevices, e.g. removable forms, for making essentially horizontal ducts in paving, e.g. for prestressed reinforcement
E01C 7/18 - Coherent pavings made in situ made of road-metal and binders of road-metal and bituminous binders
E01C 7/26 - Coherent pavings made in situ made of road-metal and binders of road-metal and bituminous binders mixed with other materials, e.g. cement, rubber, leather, fibre
E01C 7/32 - Coherent pavings made in situ made of road-metal and binders of courses of different kind made in situ
A machine for resurface existing roads. The machine may include a first group of sprayers configured to form a first layer of binding material, and a fiber material distribution component positioned adjacent the first group of sprayers. The fiber material distribution component may be configured to distribute fiber material onto the first layer of the binding material. The machine may also include a second group of sprayers positioned adjacent the fiber material distribution component. The second group of sprayers may be configured to form a second layer of the binding material over the distributed fiber material. Additionally, the machine may include a channel positioned adjacent the second group of sprayers. The channel may be configured to supply an asphalt mixture over the second layer of the binding material. Further, the machine may include a screed positioned adjacent the conduit. The screed may be positioned to contact the asphalt mixture.
E01C 7/26 - Coherent pavings made in situ made of road-metal and binders of road-metal and bituminous binders mixed with other materials, e.g. cement, rubber, leather, fibre
5.
MACHINE, SYSTEM AND METHOD FOR RESURFACING EXISTING ROADS
A machine for resurface existing roads is disclosed. The machine may include a first group of sprayers configured to form a first layer of binding material, and a fiber material distribution component positioned adjacent the first group of sprayers. The fiber material distribution component may be configured to distribute fiber material onto the first layer of the binding material. The machine may also include a second group of sprayers positioned adjacent the fiber material distribution component. The second group of sprayers may be configured to form a second layer of the binding material over the distributed fiber material. Additionally, the machine may include a channel positioned adjacent the second group of sprayers. The channel may be configured to supply an asphalt mixture over the second layer of the binding material. Further, the machine may include a screed positioned adjacent the conduit, where the screed may be positioned to contact the asphalt mixture.
E01C 19/21 - Machines, tools, or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for distributing granular or liquid materials for simultaneously but separately applying liquid material and granular or pulverulent material, e.g. bitumen and grit, with or without spreading
E01C 19/48 - Machines, tools, or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for laying-down the materials and consolidating them, or finishing the surface
E01C 23/04 - Devices for laying reinforcing elements or dowel barsRemovable supports for reinforcing elementsDevices, e.g. removable forms, for making essentially horizontal ducts in paving, e.g. for prestressed reinforcement
6.
Pavement rehabilitation using cold in-place asphalt pavement recycling
A method of cold in-place recycling of asphalt to remediate distressed roads. Asphalt particles obtained by milling the existing asphalt are limited by screening to a maximum size of about one inch length. Asphalt particle size may be established by limiting tooth spacing of the road milling equipment milling head to about 5/16 inch or 8 millimeter spacing intervals. A predetermined proportion of portland cement, water, and asphalt emulsion are added to generated asphalt particles. Portland cement may be deposited onto the existing asphalt prior to milling. The resulting combination is mixed to generate a recycled mix, which may then be discharged onto the road being remediated and further processed, such as by screeding, compacting, and sealing.
patents
