A colored asphalt-based sealcoat composition comprising asphalt emulsion, water, extender, polymer, clay, colorant, and titanium oxide particles is provided. In some embodiments, a highly solar reflective, colored asphalt-based sealcoat composition comprising titanium oxide particles is provided. In some embodiments, a colored asphalt-based sealcoat composition comprising titanium oxide particles capable of reducing surface temperatures of asphalt treated with the composition is provided. In some embodiments, a colored asphalt-based sealcoat composition comprising titanium oxide particles capable of reducing atmospheric pollutants is provided. In some embodiments, methods for preparing colored asphalt-based sealcoat compositions as well as their application to asphalt surfaces is provided.

A colored asphalt-based sealcoat composition comprising asphalt emulsion, water, extender, polymer, clay, colorant, and titanium oxide particles is provided. In some embodiments, a highly solar reflective, colored asphalt-based sealcoat composition comprising titanium oxide particles is provided. In some embodiments, a colored asphalt-based sealcoat composition comprising titanium oxide particles capable of reducing surface temperatures of asphalt treated with the composition is provided. In some embodiments, a colored asphalt-based sealcoat composition comprising titanium oxide particles capable of reducing atmospheric pollutants is provided. In some embodiments, methods for preparing colored asphalt-based sealcoat compositions as well as their application to asphalt surfaces is provided.

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 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 of preparing a block copolymer composition is provided. The method includes: adding an aromatic vinyl monomer and a compound represented by Chemical Formula 1 to a hydrocarbon-based solvent and performing stirring to prepare a first mixed solution; adding a polymerization initiator to the first mixed solution and performing polymerization to prepare a second mixed solution; adding a conjugated diene-based monomer to the second mixed solution and performing polymerization to prepare a third mixed solution; and adding a coupling agent to the third mixed solution to perform a coupling reaction, An asphalt composition including the block copolymer composition prepared therefrom, is also provided.

A method of preparing a block copolymer composition is provided. The method includes: adding an aromatic vinyl monomer and a compound represented by Chemical Formula 1 to a hydrocarbon-based solvent and performing stirring to prepare a first mixed solution; adding a polymerization initiator to the first mixed solution and performing polymerization to prepare a second mixed solution; adding a conjugated diene-based monomer to the second mixed solution and performing polymerization to prepare a third mixed solution; and adding a coupling agent to the third mixed solution to perform a coupling reaction, An asphalt composition including the block copolymer composition prepared therefrom, is also provided.

Pavement aging can be reduced by applying to an asphalt-containing pavement a topcoat layer or a surface treatment containing asphalt binder with sterols.

Pavement aging can be reduced by applying to an asphalt-containing pavement a topcoat layer or a surface treatment containing asphalt binder with sterols.

A method for preparing a butyronitrile rubber powder-based polyvinyl chloride (PVC) thermoplastic elastomer and a use of the butyronitrile rubber powder-based PVC thermoplastic elastomer in preparing automotive parts are provided. The method includes: activating a wasted nitrile butadiene rubber (NBR) powder; plasticizing one of NBR and chloroprene rubber (CR) to obtain a plasticized rubber; dispersing the activated NBR fine rubber powder with one of PVC and chlorinated polyethylene (CPE) in a kneader evenly to obtain a mixture; adding the mixture and pine tar into the plasticized rubber, then mixing evenly to obtain a mixed plastic; adding various compounding agents into the mixed plastic and dispersing evenly to perform cross-linking reaction, thereby obtaining the butyronitrile rubber powder-based PVC thermoplastic elastomer. By using the wasted NBR powder as a main material, which turns waste into treasure and has low cost, and the butyronitrile rubber powder-based PVC thermoplastic elastomer has excellent comprehensive performance.

A method for preparing a butyronitrile rubber powder-based polyvinyl chloride (PVC) thermoplastic elastomer and a use of the butyronitrile rubber powder-based PVC thermoplastic elastomer in preparing automotive parts are provided. The method includes: activating a wasted nitrile butadiene rubber (NBR) powder; plasticizing one of NBR and chloroprene rubber (CR) to obtain a plasticized rubber; dispersing the activated NBR fine rubber powder with one of PVC and chlorinated polyethylene (CPE) in a kneader evenly to obtain a mixture; adding the mixture and pine tar into the plasticized rubber, then mixing evenly to obtain a mixed plastic; adding various compounding agents into the mixed plastic and dispersing evenly to perform cross-linking reaction, thereby obtaining the butyronitrile rubber powder-based PVC thermoplastic elastomer. By using the wasted NBR powder as a main material, which turns waste into treasure and has low cost, and the butyronitrile rubber powder-based PVC thermoplastic elastomer has excellent comprehensive performance.