The invention relates to a bitumen/polymer composition and to its process of manufacture. The bitumen/polymer composition includes first bitumen base having an intrinsic stability S of greater than 2.5 and/or a degree of peptization S.sub.a of greater than 0.60, and a second bitumen base having an intrinsic stability S of less than or equal to 2.50 and/or a degree of peptization S.sub.a of less than or equal to 0.60, an elastomer and an olefinic polymer adjuvant functionalized by at least glycidyl functional groups. The values of intrinsic stability S and of the degree of peptization S.sub.a are measured according to the standard ASTM D 7157-12. The bitumen/polymer composition exhibits improved low-temperature mechanical properties.

The present invention relates to an asphalt composition which is excellent in storage stability at a high temperature, an asphalt mixture, a method for producing the same, and a road paving method. Provided are [1] an asphalt composition containing asphalt, a polyester resin, and a dispersant; [2] an asphalt mixture containing the asphalt composition as set forth above in [1] and an aggregate; [3] a road paving method including a step of laying the asphalt mixture as set forth above in [2], thereby forming an asphalt paving material layer; and [4] a method for producing an asphalt mixture including mixing asphalt, a polyester resin, a dispersant, and an aggregate at 130 C. or higher and 200 C. or lower.

Paving compositions comprising asphalt cement, wherein the asphalt cement may have a with a pen value greater than 50 dmm at 25 C., and the composition may further include a an aminated wax, a rejuvenator and/or a polymeric component. Paving structures include a substrate pavement layer with a tack coat applied thereto, and methods of making a paving structure include applying a tack coat to a substrate pavement layer, wherein the tack coat comprises asphalt cement, wherein the asphalt cement may have a with a pen value greater than 50 dmm at 25 C., and the tack coat may further include a an aminated wax, a rejuvenator and/or a polymeric component.

This invention provides, among other things, an asphalt-based sealcoat composition comprising high levels of titanium oxide particles. In some embodiments, the invention also provides a highly solar reflective asphalt-based sealcoat composition comprising high levels of titanium oxide particles. In some embodiments, the invention provides an asphalt-based sealcoat composition capable of reducing pollutants comprising high levels of titanium oxide particles. In some embodiments, the invention provides methods for preparing asphalt-based sealcoat compositions as well as their application to asphalt surfaces.

Disclosed herein are rejuvenating compositions for asphalt applications. In one aspect, the rejuvenating composition comprises a polymerized oil having a polymeric distribution ranging from about 2 to about 80 wt % oligomer content and Hildebrand solubility ranging from about 6 to about 12. In another aspect, the rejuvenating composition comprises an oil having a Hildebrand solubility ranging from about 6 to about 12 and a flash point ranging from about 100 C. to about 400 C. In yet another aspect, the rejuvenating composition comprises a modified oil having a Hildebrand solubility ranging from about 6 to about 12 and a flash point ranging from about 100 C. to about 400 C.

Described herein is a polymerized biorenewable, previously modified, or functionalized oil, comprising a polymeric distribution having about 2 to about 80 wt % oligomer content, a polydispersity index ranging from about 1.30 to about 2.20, and sulfur content ranging from 0.001 wt % to about 8 wt %. Methods of manufacturing the polymerized oil as well as its incorporation into asphalt paving, roofing, and coating applications are also described.

Described herein is a polymerized biorenewable, petroleum based, previously modified, or functionalized oil, comprising a polymeric distribution having about 2 to about 80 wt % oligomer content, a polydispersity index ranging from about 1.0 to about 5.0, and sulfur content ranging from 0.001 wt % to about 8 wt %. Methods of manufacturing the polymerized oil as well as its incorporation into asphalt paving, roofing, and coating applications are also described.

An asphalt mixture is provided which comprises an aggregate, an asphalt, a lubricative solidification material, and an alkaline additive material, which are mixed together. The asphalt mixture is characterized in that the lubricative solidification material contains a C6-C30 saturated fatty acid in an amount of 50 to 100 wt %. The present invention can provide an asphalt mixture that can develop strength within a relatively short time after paving and can give a paved body having enhanced strength and excellent rut resistance and flexibility.

Downstream uses for briquettes and other forms of asphalt shingle waste are provided. A composition is provided. The composition comprises 5% to 50% by weight of an asphalt shingle waste based on a total weight of the composition, wherein the asphalt shingle waste comprises a waste asphalt; 1% to 25% by weight of at least one filler material based on the total weight of the composition; 1% to 15% by weight of at least one polymer based on the total weight of the composition; 1% to 10% by weight of at least one stabilizer based on the total weight of the composition; and 1% to 15% by weight of at least one surfactant based on the total weight of the composition. A drilling fluid, various other asphalt products, and related methods are also provided, among other things.

The current invention concerns composition comprising bitumen, one or more plasticity modifying agent(s), and lignin, as well as methods and uses related to such compositions. In particular, compositions are disclosed with improved properties, such as mixing properties.