Vibration damping material of asphalt cement

摘要

A vibration damping material of asphalt cement comprising a) 60-90 parts by weight of asphalt cement: b) 10-30 parts by weight of thermoplastic rubber: and c) 0-20 parts by weight of tacky producer. A total sum of weight of a), b) and c) is 100 parts by weight. A penetration of the vibration damping material falls in a range of 35 to 140.