不同浓度SBS改性沥青老化规律研究  

Research on Aging Laws of SBS Modified Asphalts with Different Concentration

作　　者：李巍 LI Wei(Liaoning Transportation Research Institute Co.,Ltd.,Shenyang 110015,China)

机构地区：[1]辽宁省交通科学研究院有限责任公司

出　　处：《北方交通》2019年第12期72-76,共5页Northern Communications

摘　　要：为研究不同浓度SBS改性剂下改性沥青的老化规律,选用了两种重交石油沥青,并掺加了不同剂量的SBS改性剂,通过对改性沥青的短期老化和长期老化后的针入度、延度和软化点进行分析,研究了老化对改性沥青的性能影响规律。In order to study the aging laws of modified asphalts under SBS modifiers with different concentration,two kinds of heavy traffic petroleum asphalts are selected and SBS modifiers with different dosages are added.By analyzing the needle penetration,ductility and softening point of modified asphalts after short-term aging and long-term aging,the influence laws of aging on the performance of modified asphalts are studied.

关 键 词：沥青路面 老化规律 短期老化 长期老化 

分 类 号：U414.01[交通运输工程—道路与铁道工程]