BITUMINOUS COMPOSITIONS COMPRISING AN AMINE ADDITIVE AND A HYDROXIDE, THEIR PREPARATION PROCESS AND APPLICATIONS

摘要

The invention concerns bituminous compositions comprising: - a bitumen, - a hydroxide XOH, with X = Na, Ca, Mg, Li or K, and - at least one amine additive selected from amines, diamines, polyamines, alkyl amido amines, amidopolyamines and imidazolines, wherein said bituminous composition is substantially free of saponifiable and saponified carboxylic acids, and the bitumen represents at least 60% by weight of said bituminous composition, their preparation process, their use in road applications, as well as bituminous mixes and asphalts comprising such a bituminous compositions.