process for the manufacture of a suitable bitumen aggregate mix for road paving

摘要

"PROCESS FOR MANUFACTURING A MIXTURE OF BETUMUM AGGREGATE SUITABLE FOR ROAD PAVING". The present invention relates to an aqueous quick-setting bitumen aggregate mixture suitable for cold paving of roads, parking lots, sidewalks and the like. The bitumen aggregate mixture is manufactured by mixing a mineral aggregate, water, a demulsifier, containing hydraulic cement, and a cationic oil-in-water bitumen emulsion, containing, as an emulsifier, a tertiary diamine salt and an acid. phosphoric. The diamine has formula (1), wherein one or two of the groups R 1, R 2, R 4 and R 5 designate a hydrocarbon group of 6-22, preferably 8-20 carbon atoms. , and the remaining groups R 1, R 2, R 4 and R 5 are an alkyl group having 1-4 carbon atoms, and / or a group (A) 2 H where A is an alkyleneoxy group of 2-3 carbon atoms and s is a number of 1-4, R3 is an alkylene group of 2-4 carbon atoms and n is a number of 0-2.