Disclosed is a modified asphalt composition comprising asphalt and a tapered block copolymer, which contains short butadiene monomer blocks at both ends of aromatic vinyl monomer blocks, that provides comparable or better softening point when compared to conventional compositions, and exhibits superior ductility at low temperature, thereby being applicable to road paving, waterproof sheets and sealants.
揭示了一种改性
沥青组合物,包括
沥青和锥形嵌段共聚物,其中锥形嵌段共聚物在芳香
乙烯单体块的两端包含短的
丁二烯单体块,与传统组合物相比具有相当或更好的软化点,并在低温下表现出优越的延展性,因此适用于道路铺设、防
水板和密封剂。