Method of preparation of a foam bituminous, bituminous foam, and the use of this foam bituminous

摘要

The present invention relates to a process for the preparation of a bituminous foam comprising the mixture under atmospheric pressure of a composition of the hydrolipid placed at a temperature lower than 100 degrees c, containing a lipid phase containing at least a lipid compound chosen from the group of glycerides, and an aqueous phase, that is not miscible with the lipid phase with a bituminous composition is placed at a temperature above 140 degrees c, the ratio by mass composition of the hydrolipid / bituminous composition being less than 50%, in the presence of a foaming composition, comprising at least one foaming surfactant, able to produce a foaming air.l' to the invention also relates to a bituminous foam obtained according to a process according to the invention and the use of this foam bituminous for the production of a bituminous mix.