A method of forming an asphalt mixture can include mixing a bio-source material and a bitumen source to form a bitumen mixture. The bitumen mixture can be mixed with a catalyst to form the asphalt mixture. Particles can be added to the asphalt mixture to form a roofing-grade asphalt mixture. In an embodiment, the bitumen source material can have a softening point of at least approximately 93 C. and a penetration distance no greater than approximately 25 dmm. In another embodiment, the roofing-grade asphalt mixture can have a softening point of at least approximately 104 C., a penetration distance no greater than approximately 12 dmm, a viscosity of at least approximately 3000 cps at a temperature of 204 C., or any combination thereof. The asphalt mixture can be applied to a base material to form a roofing product. The asphalt mixture can be applied as a pavement product.

A method of forming a roofing-grade asphalt mixture can include mixing a bio-asphalt including a partially oxidized bio-source material, a bitumen source material different from the bio-asphalt, and particles to form the roofing-grade asphalt mixture. In an embodiment, the bitumen source material can have a softening point of at least approximately 102 C. and a penetration distance no greater than approximately 20 dmm. In another embodiment, the roofing-grade asphalt mixture can have a softening point of at least approximately 104 C., a penetration distance no greater than approximately 12 dmm, a viscosity of at least approximately 3000 cps at a temperature of 177 C., or any combination thereof. The roofing-grade asphalt mixture can be applied to a base material to form a roofing product.

Vegetable oil compositions, as an example, corn oil, having an elevated lower alkyl ester content above about 7% weight percent of the total weight of the oil composition, and uses thereof are provided.

Vegetable oil compositions, as an example, corn oil, having an elevated lower alkyl ester content above about 7% weight percent of the total weight of the oil composition, and uses thereof are provided.

Disclosed are asphalt binder compositions and methods for making such compositions with sterol. The sterol improves various rheological and chemical properties of asphalt binder.

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, 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.

The invention provides a non-petroleum based rejuvenating agent to improve the performance of the recycled asphalt, and accordingly extend the service life of the recycled pavement.

An asphalt modifying binder product, which is essentially a cut-back bituminous binder, uniquely including a petroleum product, such as diesel fuel or alternatively an organic oil, including vegetable or animal derived fats or oils, or glycol, for use in the manufacture of cold-mix asphalt CMA and asphalt treated base products. When mixed with an dense-graded aggregate with fine aggregate fractions, a dense-graded and non-porous cold-mix asphaltic improved product is fomiulatede The improved product may be employed as a patching/paving material or an asphalt treated base, stays pliable for extended periods of time at an ambient temperature, and again meets the typical required specifications and standards, for stability, flow and voids, when tested as hot-mix asphalt or asphalt treated base.