【摘要】 通过对20余种SBS改性沥青混合料的试验研究,对SBS改性沥青混合料的水稳定性、高温性能和低温性能等技术指标进行了对比分析·结果表明:AC 20I型中粒式沥青混凝土的马歇尔稳定度普遍要比抗滑表层沥青混凝土的马歇尔稳定度高,水稳定性相差不大;采用辽河系列沥青生产的混合料高低温性能较好;成品沥青生产的混合料综合性能较好·更多还原

【Abstract】 More than 20 kinds of modified SBS asphalt mixtures were investigated experimentally to analyze comparatively their performances including moisture retentivity and high/low temperature performance. The results showed that the marshal testing stability of AC-20I mesograin asphalt mixture is higher than that of skid-resistance-layer asphalt mixture in general, but their moisture retentivities are much the same. The high/low temperature performance of the asphalt mixtures made from Liaohe substratum bitumen are better than others, and the overall performance of the asphalt mixture using finished bitumen as raw material is superior.更多还原