The present invention relates to elastomeric polymer fiber reinforced asphalt cement concrete for use in a variety of applications. In particular, the reinforcement fibers are effective to reduce or preclude voids and/or cracks formed in the asphalt upon placement and to render a self-healing property to the placed asphalt.

Formulations and methods of making and using two emulsions, one emulsion having a rejuvenating agent and another emulsion having an asphalt phase. The two emulsions may be serially applied or blended together to form a dual emulsion for various deteriorated pavement surface treatments. The two emulsions may be used with a recycled asphalt product, either being mixed with the recycled asphalt product or serially applied to the recycled asphalt product. The two emulsions when blended together may form a dispersion having different phases with different setting times. The surfactant in the rejuvenating emulsion may be faster setting for a preferred initial break and better interaction with the pavement product, while the surfactant in the asphalt emulsion may break more slowly and provide more time to combine with the rejuvenated binder and fully coat the deteriorated asphalt product, and any virgin aggregate added to the mix.

The present invention relates to elastomeric polymer fiber reinforced asphalt cement concrete for use in a variety of applications. In particular, the reinforcement fibers are effective to reduce or preclude voids and/or cracks formed in the asphalt upon placement and to render a self-healing property to the placed asphalt.

The present disclosure relates to an emulsifier composition comprising: a copolymer comprising between 10 mol % and 70 mol % of at least one monomeric unit A and between 30 mol % and 90 mol % of at least one monomeric unit B, the said monomeric unit B being cationic or cationizable at acid pH, and at least one emulsifier chosen from the group comprising cationic emulsifiers, non-ionic emulsifiers and amphoteric emulsifiers, and mixtures thereof.

Provided is a composition including at least one bitumen and at least one additive as defined herein. The composition provides emulsions of all types of bitumens, which can be used in the production of cold-poured mixes, having an improved internal strength and a rapid increase in cohesion.

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.

Described herein is an emulsion for use in asphalt rejuvenation applications, comprising an oil phase comprising (1) a polymerized 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 less than about 8 wt %; and (2) an aqueous phase, comprising a surfactant. The emulsion may be incorporated into asphalt paving, roofing, and coating applications and especially aged or recycled asphalt thereby obtaining rejuvenated asphalt.

The invention concerns the use as a fluxant agent of at least one compound with the formula (I)

R.sup.1XRYR.sup.2(I) where: R.sup.1 and R.sup.2, which can be identical or different, are hydrocarbon chains, linear or branched, at C.sub.2-C.sub.11; each of X and Y, which can be identical or different, is an O(CO) group; (CO)O; NR(CO), where R represents a hydrocarbon atom or an alkyl radical at C.sub.1-C.sub.4, or (CO)NR, where R represents a hydrocarbon atom or an alkyl radical at C.sub.1-C.sub.4, the R group is a divalent hydrocarbon chain, at C.sub.1-C.sub.10, linear or branched, and possibly interrupted by one or more oxygen atom(s)
in a composition including a hydrocarbon binder for the preparation of the bituminous product based on solid mineral particles in contact with the said hydrocarbon binder, where the said compound of formula (I) is present in the said composition when the said composition is brought into contact with the said solid mineral particles.