ASPHALTIC CONCRETE COMPOSITIONS COMPRISING DIENE/VINYL AROMATIC COPOLYMERS

摘要

ASPHALTIC CONCRETE COMPOSITIONS COMPRISING DIENE/VINYL AROMATIC COPOLYMERS Improved asphalt-containing compositions having excellent flexural fatigue test characteristics are prepared by incorporating into the mix during its preparation at least one diene/vinyl aromatic copolymer, said copolymer being a radial teleblock copolymer wherein the teleblock copolymer has a diene/vinyl aromatic weight ratio of about 60/40 to about 90/10 and a weight average molecular weight range of from about 130,000 to 300,000.