COMPOSITION FOR WARM-MIX ASPHALT PAVEMENTS

摘要

PURPOSE: A middle-temperature asphalt pavement composition is provided to improve mid temperature construction techniques, thereby commercializing in wide range of energy-savings and low carbon technologies. CONSTITUTION: A middle-temperature asphalt pavement composition comprises 91-94 weight% of asphalt, 3-5 weight% of thermoplastic elastomer, 2-4 weight% of maleic anhydride-grafted polyethylene wax which has 4-10% of grafting ratio, and 0.1-1 weight% of process oil. The middle-temperature asphalt pavement composition has viscosity of less than 700 cP at 135 deg. Celsius. The thermoplastic elastomer is styrene-butadiene-styrene(SBS), styrene-butadiene copolymer rubber(SBR), natural rubber latex, or a combination thereof.