Abstract: Bitumen pellets including at least one chemical additive chosen from: a compound of general formula (I): R1-(COOH)z in which R1 is a linear or branched, saturated or unsaturated hydrocarbon-based chain including from 4-68 carbon atoms, and z is an integer ranging from a compound of general formula (II): R—(NH)nCONH—(X)m-NHCO(NH)n-R? in which: R and R? are identical or different, contain a saturated or unsaturated, linear or branched, cyclic or acyclic hydrocarbon-based chain having from 1-22 carbon atoms and optionally including heteroatoms and/or rings having from 3-12 atoms and/or heterocycles having from 3-12 atoms; X contains a saturated or unsaturated, linear or branched, cyclic or acyclic hydrocarbon-based chain having from 1-22 carbon atoms and optionally including one or more heteroatoms and/or rings having from 3-12 atoms and/or heterocycles having from 3-12 atoms; n and m are integers having, independently of one another, a value of 0 or of 1.

Abstract: Bitumen pellets including at least one chemical additive chosen from: a compound of general formula (I): R1-(COOH)z in which R1 is a linear or branched, saturated or unsaturated hydrocarbon-based chain including from 4-68 carbon atoms, and z is an integer ranging from a compound of general formula (II): R—(NH)nCONH—(X)m-NHCO(NH)n-R? in which: R and R? are identical or different, contain a saturated or unsaturated, linear or branched, cyclic or acyclic hydrocarbon-based chain having from 1-22 carbon atoms and optionally including heteroatoms and/or rings having from 3-12 atoms and/or heterocycles having from 3-12 atoms; X contains a saturated or unsaturated, linear or branched, cyclic or acyclic hydrocarbon-based chain having from 1-22 carbon atoms and optionally including one or more heteroatoms and/or rings having from 3-12 atoms and/or heterocycles having from 3-12 atoms; n and m are integers having, independently of one another, a value of 0 or of 1.

Abstract: The disclosure relates to a cross-linking composition in pellet form including at least one polymer matrix, at least one cross-linking agent and at least one hydrogen sulphide inhibiting agent, the hydrogen sulphide inhibiting agent including at least one zinc carboxylate and at least one triazine derivative. It also relates to its preparation method.

Abstract: The disclosure relates to cold asphalt coatings, in particular cold-poured asphalt coatings. The cold asphalt coatings according to the disclosure include one or more polymerized fatty acids. The cold asphalt coatings, prepared using a bitumen emulsion, have a pre-breakage mixing time that imparts good workability thereto. The cold asphalt coatings, and particularly cold-poured asphalt coatings, have increased cohesion that enables the same to be used under high-speed traffic. Finally, the cold asphalt coatings have good mechanical resistance.

Abstract: This bitumen-polymer emulsion contains:a) at least one bitumen,b) at least one polymer having hydrocarbon chains with mobile hydrogens, said polymer being grafted and crosslinked in situ in said bitumen through a complex of at least one organic silicon compound, said complex being formed from a primary constituent and a secondary constituent, the latter being an organic silicon compound,c) water, andd) at least one emulsifier.