Bituminous composition.

摘要

Bituminous composition comprising a bitumen, an elastomeric, optionally hydrogenated, block copolymer containing at least two monoalkenyl arene blocks A and at least one conjugated diene block B which composition further comprises a polymer of a monovinylaromatic hydrocarbon of which polymer the number average molecular weight is the range of 1/4 to 2 times the number average molecular weight of the polymeric blocks A.