EMULSIE BITUMINOASA SI PROCEDEU PENTRU ABTINEREA ACESTEIA

摘要

An aqueous bitumen and rubber emulsion is described which comprises a bituminous compound, a block copolymer with radial configuration of conjugated diene and aromatic vinyl compound and an emulsifier consisting of an amine salt and water. The process for the preparation of these aqueous bitumen and rubber emulsions consists in mixing a bituminous compound with a block copolymer with radial configuration of conjugated diene and aromatic vinyl compound, in introducing a proportion of the total quantity of amine into this mixture and in emulsifying this mixture in an aqueous phase containing the remainder of the quantity of amine as well as an acid in a quantity which is at least sufficient to neutralise all the amine. This emulsion can be employed in the field of road surfacing and roofing.