A binder composition includes at least: a binder base selected among an oil, a bitumen base, a pitch, a clear binder, or mixtures thereof; an acid compound of general formula (I): R—(COOH).sub.z (I); an amide compound of general formula (II): R′—(NH).sub.nCONH—(X).sub.m—(NHCO).sub.p(NH).sub.n—R″ (II), the compounds of formula (I) and formula (II) being provided in a weight ratio of 10:1 to 1:16. A process for manufacturing bituminous mixes including at least the binder composition and aggregates, includes at least the steps of: heating the aggregates to a temperature ranging from 100° C. to 180° C., mixing the aggregates with the binder composition, and obtaining bituminous mixes. A method for transporting and/or storing and/or handling the binder composition includes transporting and/or storing and/or handling the binder composition in the form of blocks or pellets.

The present disclosure sets out a method for processing bituminous road surfacing material from a road demolition. The bituminous road surfacing material is in the form of break out material and/or milled material. The following steps are carried out as part of the method: mixing the bituminous road surfacing material with water to form a mixture and adding a peroxide and/or a bicarbonate to the water and/or the mixture, in particular hydrogen peroxide and/or a bicarbonate.

An asphalt composition comprising aggregates and a binder material, wherein the binder material comprises humins, which humins comprise carbonaceous water-insoluble by-products of the dehydration of carbohydrates and/or 5-hydroxymethylfurfural and/or ethers or esters of 5-hydroxymethylfurfural. The invention also provides a binder material for use in asphalt compositions comprising from 1 to 95% wt, preferably from 5 to 60% wt of such humins, based on the weight of the binder material. The invention further provides for the use of such humins in the manufacture of binder material for asphalt compositions and the use of such humins as binder material in asphalt compositions.

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.

Disclosed are asphalt binder compositions that contain at least one sterol or stanol additive, or blends of sterols and stanol additives, wherein the sterol or stanol additive is derived from an animal waste or manure source such as swine manure. These sterol and stanol-based additives improve various rheological properties of the asphalt binder compositions showing reduced and/or mitigated aging characteristics.

A bituminous composition comprising at least one bitumen base, at least one compound of general formula (I): Ar1-R.sub.1Ar.sub.2 (I), and at least one compound of general formula (II): R.sub.2(NH).sub.nCONHX(NHCO).sub.p(NH).sub.nR.sub.2 (II). The invention also concerns a process for the preparation of said bituminous composition.

The present invention relates to an asphalt product that comprises an asphalt component and a plurality of pellets comprising a mixture of a ground tire rubber and an elastomeric polymer, where the density difference between the asphalt component and the plurality of pellets is less than 10%. The present invention further relates to a pellet comprising a ground tire rubber (GTR) and an elastomeric polymer mixed with the GTR, where the GTR has a density of less than 1.12 g/cm.sup.3. Also disclosed are methods of producing improved asphalt and paving a surface.

An asphalt composition comprising aggregates and a binder material, wherein the binder material comprises humins, which humins comprise carbonaceous water-insoluble by-products of the dehydration of carbohydrates and/or 5-hydroxymethylfurfural and/or ethers or esters of 5-hydroxymethylfurfural. The invention also provides a binder material for use in asphalt compositions comprising from 1 to 95% wt, preferably from 5 to 60% wt of such humins, based on the weight of the binder material. The invention further provides for the use of such humins in the manufacture of binder material for asphalt compositions and the use of such humins as binder material in asphalt compositions.

A binder composition includes at least: a binder base selected among an oil, a bitumen base, a pitch, a clear binder or mixtures thereof; an acid compound of general formula (I): R(COOH).sub.z (I); an amide compound of general formula (II): R(NH).sub.nCONH(X).sub.m(NHCO).sub.p(NH).sub.nR (II), the compounds (I) and (II) being provided with a weight ratio of 10:1 to 1:16. The invention also relates to a method for manufacturing coatings. The invention further relates to a method for transporting and/or storing and/or handling binder, in particular road binder, said binder being transported and/or stored and/or handled in the form of binder granules or binder cakes.

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.