Patent classifications
E01C7/32
COVER FOR ASPHALT INCLUDING ASPHALT EMULSION AND METHOD OF PAVING ASPHALT USING THE SAME
Provided is a cover for asphalt including an asphalt emulsion and a method of paving asphalt using the same, and specifically, to a cover for asphalt, which may facilitate adhesion between an existing asphalt pavement layer and a new asphalt pavement layer and substitute for a tack coat. The cover for asphalt prevents an asphalt emulsion from being damaged by heavy vehicles or construction equipment moving for application of a new pavement layer, and allows omitting separate asphalt emulsion application and curing processes before application of the new asphalt layer.
ASPHALT PAVING AND STRIPPING SYSTEM AND METHOD USING HYDROPHOBIC MICROWAVE ABSORBING MATERIAL
Asphalt paving and stripping system and method involves the use of a primer, comprising hydrophobic microwave absorbing material mixed in a hydrophobic liquid, between an asphalt layer and a base layer below. The primer is configured to be deposited on the base layer at room temperature without preheating. Heating the hydrophobic microwave absorbing material, sandwiched between the asphalt and base layers, by microwave energy, allows striping of the asphalt layer from the base layer by a wheel loader.
Paving machine membrane dispenser
An asphalt paving system comprising a plurality of dispensing shafts and a plurality of rolls of pavement reinforcing membrane. The plurality of dispensing shafts are adapted to be mounted on an asphalt paving machine, where at least a portion of at least one dispensing shaft extends from at least one side of the paving machine, and at least a portion of at least one dispensing shaft extends to a front of the paving machine. Each roll of pavement reinforcing membrane is supported by one of the plurality of dispensing shafts. As the asphalt paving machine moves, the plurality of dispensing shafts dispense the pavement reinforcing membrane continuously beneath the asphalt paving machine and the hot asphalt material is dispensed from the hopper on top of the pavement reinforcing membrane beneath the asphalt paving machine.
BINDER COMPOSITION FOR IMPROVED TACK COAT AND STRESS ABSORBING MEMBRANE INTERLAYER APPLICATION FOR ROAD CONSTRUCTION
A binder composition for asphalt pavements that includes: an asphalt binder; an elastomeric polymer; a wax modifier; and optionally at least one of: i) fumed silica or fumed alumina; and ii) a saponified fatty acid and a resin acid gelling compound. The composition is applied as a tack coat and/or a stress absorbing membrane interlayer and is non-tracking.
BINDER COMPOSITION FOR IMPROVED TACK COAT AND STRESS ABSORBING MEMBRANE INTERLAYER APPLICATION FOR ROAD CONSTRUCTION
A binder composition for asphalt pavements that includes: an asphalt binder; an elastomeric polymer; a wax modifier; and optionally at least one of: i) fumed silica or fumed alumina; and ii) a saponified fatty acid and a resin acid gelling compound. The composition is applied as a tack coat and/or a stress absorbing membrane interlayer and is non-tracking.
PAVING MACHINE MEMBRANE DISPENSER
An asphalt paving system comprising a plurality of dispensing shafts and a plurality of rolls of pavement reinforcing membrane. The plurality of dispensing shafts are adapted to be mounted on an asphalt paving machine, where at least a portion of at least one dispensing shaft extends from at least one side of the paving machine, and at least a portion of at least one dispensing shaft extends to a front of the paving machine. Each roll of pavement reinforcing membrane is supported by one of the plurality of dispensing shafts. As the asphalt paving machine moves, the plurality of dispensing shafts dispense the pavement reinforcing membrane continuously beneath the asphalt paving machine and the hot asphalt material is dispensed from the hopper on top of the pavement reinforcing membrane beneath the asphalt paving machine.
Imprinted concrete with exposed aggregate
Systems and methods of imprinting concrete having exposed aggregate. The imprinted concrete system comprises a concrete layer, an imprinted layer disposed on the concrete layer, wherein the imprinted layer comprises a decorative aggregate, and has been imprinted with an imprinting tool. In some embodiments, the decorative aggregate may be at least partially exposed.
FULL-DEPTH ULTRA-THIN LONG-LIFE PAVEMENT STRUCTURE AND CONSTRUCTION METHOD THEREOF
A full-depth ultra-thin long-life pavement structure and a construction method thereof are disclosured. The pavement structure is disposed on a subgrade, and the pavement includes from bottom to top: a composite joint layer, a fatigue-resistant layer, a load-bearing layer, a high-strength bonding layer and a skid-resistant wearing layer; the composite joint layer comprises a bottom layer and an upper layer, the bottom layer is a graded gravel layer, and the upper layer is an open-graded large-particle-size water-permeable polyurethane and gravel mixture layer; the fatigue-resistant layer is paved by a skeleton-interlocking structural polyurethane mixture; the load-bearing layer is paved by a suspended-dense typed polyurethane mixture; the high-strength bonding layer is formed by curing a polyurethane-based composite material; the skid-resistant wearing layer is paved by a high-viscosity and high-elasticity modified asphalt mixture.
FULL-DEPTH ULTRA-THIN LONG-LIFE PAVEMENT STRUCTURE AND CONSTRUCTION METHOD THEREOF
A full-depth ultra-thin long-life pavement structure and a construction method thereof are disclosured. The pavement structure is disposed on a subgrade, and the pavement includes from bottom to top: a composite joint layer, a fatigue-resistant layer, a load-bearing layer, a high-strength bonding layer and a skid-resistant wearing layer; the composite joint layer comprises a bottom layer and an upper layer, the bottom layer is a graded gravel layer, and the upper layer is an open-graded large-particle-size water-permeable polyurethane and gravel mixture layer; the fatigue-resistant layer is paved by a skeleton-interlocking structural polyurethane mixture; the load-bearing layer is paved by a suspended-dense typed polyurethane mixture; the high-strength bonding layer is formed by curing a polyurethane-based composite material; the skid-resistant wearing layer is paved by a high-viscosity and high-elasticity modified asphalt mixture.
Stable asphalt emulsions, methods of forming the same, and composite structures formed from the same
Asphalt emulsions, methods of forming asphalt emulsions, and composite pavement structures formed from the asphalt emulsions are provided herein. In an embodiment, an asphalt emulsion includes a base asphalt component, water, and an oxidized high density polyethylene. The base asphalt component is present in an amount of from about 15 to about 70 weight %, the water is present in an amount of at least about 25 weight %, and the oxidized high density polyethylene is present in an amount of from about 1 to about 20 weight %, where all amounts are based on the total weight of the asphalt emulsion. The oxidized high density polyethylene has an acid value of from about 5 to about 50 mgKOH/g. The asphalt emulsion is free of aggregate and other mineral materials.