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

摘要

The invention concerns bituminous compositions comprising: -a bitumen, -ahydroxide XOH, with X = Na, Ca, Mg,Li or K, and -at least one amine additive selected from amines, diamines,polyamines, alkyl amido amines, amidopolyamines andimidazolines, wherein said bituminous composition is substantially free ofsaponifiable and saponified carboxylic acids, meaning that,if present, the weight of saponifiable and saponified carboxylic acidsrepresents at most 0.01% ofthe total weight of said bituminouscomposition and the bitumen represents at least 60% by weight of saidbituminous composition, their preparation process and theiruse in road applications.