This invention involves the addition of ester bottoms to an asphalt paving composition to improve the usable temperature range (UTR). The ester bottoms are a byproduct of refining a feedstock containing all or a portion of vegetable oil or animal fat.

This invention involves the addition of ester bottoms to an asphalt paving composition to improve the usable temperature range (UTR). The ester bottoms are a byproduct of refining a feedstock containing all or a portion of vegetable oil or animal fat.

The present invention consists of the formulation of Petroleum Asphalt Cement (CAP) produced by the asphalt residue (RASF) or vacuum residue (RV) using Plastic Pyrolysis Oil (OPP) as an alternative diluent and may optionally consist of elemental sulfur as well as typically fossil diluents with reduced levels. The present invention further describes the process for obtaining said CAP composition.

A composition that includes asphalt component; and graphite component.

Compositions comprising post-consumer recyclate polyolefins are described herein. The post-consumer recyclate are blended with virgin resin using a compatibilizer and an impact modifier. The resulting blends showed improved physical properties compared with compositions not containing compatibilizers and/or the impact modifier. The variability in physical properties upon addition of compatibilizer and impact modifier allows for selection of resins to produce blended resins with desired physical properties for a wider range of applications than was previously possible with recycled plastics.

A mixture formed from desired proportions of recycled asphalt shingle and recycled asphalt pavement is disclosed. The methods of molding the mixture into paving blocks, which exhibit properties of high compressive strength and low water absorption, are described. The paving blocks may be used to construct roads, parking lots, driveways, etc.

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

A method of forming a paving composition using reclaimed asphalt pavement (RAP) and/or reclaimed asphalt shingle (RAS) is provided. The method comprises: a) providing a rejuvenated asphalt binder consisting essentially of bitumen, a block copolymer and a bio-oil, wherein the rejuvenated asphalt binder has a rotational viscosity at 135 C. equal to or less than 1000 centipoise, an original G*/sin at 64 C. equal to or greater than 1 kPa where G* is the complex shear modulus and is the phase angle; a G*/sin at 64 C. equal to or greater than 2.2 kPa after aging in a Rolling Thin Film Oven (RTFO); b) providing a virgin asphalt; c) heating the virgin asphalt to 160-200 C.; d) providing a RAP and/or RAS; and e) mixing the heated virgin asphalt, RAP/RAS, and the rejuvenated asphalt binder under conditions suitable to form the paving composition.

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

The present invention relates to an asphalt mixture that contains a polyester resin (A), a compound (B), an asphalt, and an aggregate. The aggregate contains an asphalt recycled aggregate. The compound (B) is a compound having 8 or more carbon atoms and having a hydroxy group or an amino group.