SBS改善道路沥青及沥青混合料性能的研究

RESEARCH OF SBS MODIFIED ASPHALT AND MIXTURE PERFORMANCE

以欢喜岭 AH-90、日本 -1 1 0沥青为基料 ,分别加入 6%的燕山牌 SBS-2改性剂制成的改性沥青 ,其针入度指数 PI、高低温性能、弹性恢复性能、老化性能均得以提高。建议 SBS-2最佳掺加量 :国产重交基质沥青为 4 %～ 6% ,进口基质沥青为 4 %～ 5%

Two modified asphalts were made from Huanxiling AH-90,Japan AH-110 and 6% of Yanshan SBS-2 separately.Their penetration indexes,softening points,ductilities,elasticities and aging properties were improved.We advise that the best quantity of SBS-2 is 4%~6% and 4%~5% for heavy traffic paving asphalt made in our country and imported asphalt separately.