A method for rapidly repairing a road surface includes: forming a base layer reinforcing material by low-shrinkage unsaturated polyester resin, diluent, expansion agent, accelerator, and polymerization inhibitor, adding a curing agent and pouring into a base layer at a damaged part of the road surface until infiltration is stopped; laying chopped basalt fiber, forming a surface layer repair material by acrylate monomer, acrylic resin polymer, silane coupling agent, calcium carbonate powder, talc powder, quartz sand, metal hydroxide flame retardant and accelerator, polymerization inhibitor and short cut basalt fiber; adding curing agent to fill the road surface and solidifying. The repairing method can not only play a reinforcing effect on the road base, but also repair the surface layer on the damaged parts such as cracks on road surface, so as to realize the dual functions of the base layer reinforcement and the surface layer repair.

A concrete and asphalt repair coating formulation includes a cement component and an aggregate component. The cement component includes a calcium sulfoaluminate cement and a Portland cement. The aggregate component includes coarse aggregates between 125-500 microns in diameter and fine aggregates between 5-62.5 microns in diameter.

Roadway resurfacing often requires removal of the existing asphalt from the roadway for reuse. One method of resurfacing a roadway is hot-in-place recycling. Hot-in-place recycling employs substantial heat to remove the oxidized or aged asphalt. This heat further oxidizes the asphalt, creating a material that lacks many desirable properties (e.g., flowability) and flexibility. The disclosure provides compositions and methods that enhance oxidized asphalt, making it more viable for use in resurfacing roadways. Accordingly, compositions comprising recycled asphalt pavement and a rejuvenating agent are disclosed. The compositions combine a rejuvenator and fresh asphalt flux to make a modified asphalt rejuvenator. The modified rejuvenator is then mixed with recycled asphalt pavement to form a rejuvenated asphalt composition.

Provided is an asphalt reinforcement, and more particularly, to an asphalt reinforcement, which is applicable to asphalt pavement without tack coat application and curing processes, and a method of repairing asphalt pavement using the same. The asphalt reinforcement of the present invention includes: a reinforcing fiber layer having a plurality of holes formed therein; a film layer, which is breathable or non-breathable, includes at least one resin selected from the group consisting of polypropylene, polyethylene, ethylene vinyl acetate, polyethylene elastomers, polypropylene elastomers, polybutene, and thermoplastic polyurethane, and has a melting point of 90° C. to 130° C.; and a nonwoven fabric layer, which is disposed between the reinforcing fiber layer and the film layer, is impregnated with an asphalt emulsion, and has a melting point of 50° C. to 130° C.

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.

A millable, recyclable, paving fabric interlayer system for the construction and repair of roadways and other load-bearing surfaces and method of using such a fabric is disclosed. The paving fabric includes thermoplastic materials and is combined with asphalt cement to provide a flexible, stress relieving, waterproofing layer for roadways. Because of the thickness and asphalt cement absorption of the fabric, the system provides a stress absorbing interlayer to resist fatigue and reflective cracking in pavements. The system also acts as an effective moisture barrier due to the enhanced capability to retain sufficient asphalt cement when paved onto a roadway. Such a system has the required strength and elongation to be installed on smooth or milled surfaces yet is easily milled and recycled owing to the uniquely engineered tensile and tear strengths of the fabric.

A method for repairing/treating a pavement with the use of a rheology modifier is disclosed. The method comprises first applying a layer of a rheology modifier composition comprising a rejuvenating component onto the top surface of the pavement that needs repair, then applying a second layer of a binder onto the rheology modifier layer. The second layer of binder effectively seals the rheology modifier layer with the rejuvenating component for intimate contact with the top pavement surface, thus penetrating the surface layer to extend the life of the pavement surface, arresting the deterioration of visco-elastic properties and restoring some of those properties.

The present disclosure describes systems and methods that employ a plurality of microwave applicator cells as a combined unit to continuously travel along an asphalt surface to treat the existing asphalt with microwave energy. The microwave treatment reanimates the existing (and likely damaged) asphalt to a workable state that is almost identical in nature to newly laid asphalt. The microwave system is configurable to span the width of a standard road lane, wherein the continuously traveling system efficiently repairs damaged roads with minimal down time.

In a method for renovating a roadway, a first tack coat including a bitumen emulsion, a second coat of fibres and then a third surface coat that is a “clean” bitumen emulsion or includes an anhydrous asphalt binder, is spread by a spreading machine from bottom to top and overlaid on the milled or planed roadway. The fibres are sprayed onto the tack coat and the sprayed fibres having a maximum length of 12 cm, an asphalt mix being subsequently spread over the surface coat, the residual binder of the “clean” bitumen emulsion having a penetrability of less than 40 dmm and a ball-ring temperature greater than 50° C., the ‘clean’ bitumen emulsion including between 30% and 70% bitumen, between 30% and 70% water, and between 0.1% and 10% surfactants, stabilisers and/or additives, the percentages being by weight. The application also relates to a spreading machine.

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.