Patent ID: 8557034

Claim:
A process for manufacturing asphalt, the process comprising the steps of: (i) heating bitumen, thereby providing hot bitumen; (ii) heating aggregate, thereby providing hot aggregate; (iii) mixing the hot bitumen with the hot aggregate in a mixing unit to form asphalt; wherein from 10 to 200 wt % of sulphur, based upon the weight of the bitumen, is added in at least one of the steps (i), (ii) or (iii), and wherein from 0.1 to 20 wt % of a compound of formula A, based upon the weight of the bitumen, is added in at least one of the steps (i), (ii) or (iii), wherein R 1 and R 2 are independently chosen from C 6 -C 30 alkyl or alkenyl, and wherein the sulphur and the compound of formula A are added at the same time, the sulphur is in the form of pellets and the compound of formula A is incorporated in the sulphur pellets.