SBS改性沥青低温性能的影响因素分析  

Influence factors analysis of the low temperature performance of SBS modified asphalt

作　　者：谭忆秋[1] 曹丽萍[2] 董泽蛟[1] 

机构地区：[1]哈尔滨工业大学交通科学与工程学院,黑龙江哈尔滨150090 [2]同济大学道路与交通工程教育部重点试验室,上海200092

出　　处：《哈尔滨工业大学学报》2004年第12期1631-1634,共4页Journal of Harbin Institute of Technology

基　　金：国家自然科学基金资助项目(50008005).

摘　　要：寒冷地区沥青路面的低温开裂是各国普遍存在的问题,人们常采用SBS改性沥青来改善沥青的低温性能.但是,SBS改性沥青是一个复杂的体系,它的低温性能受到改性剂结构、改性剂掺量、基质沥青标号等各种因素的共同影响.为了找到主要影响因素,采用正交试验的方法,应用动态剪切流变仪DSR(DynamicShearRheometer)实测低温性能作为评价指标,分析了各因素对其低温性能的影响,结果表明基质沥青的标号是最主要的影响因素.Low temperature cracking of asphalt pavement in cold area is a common existing problem. SBS modified asphalt is often used to improve the low temperature performance of asphalt. But SBS modified asphalt is a complex system and its low temperature performance is affected by the grade of base asphalt and the structure and contents of modifier together. In order to find out the main influence factor, the influences of all factors on low temperature performance were analyzed by using the low temperature performance of the SBS modified asphalt practically measured by Dynamic Shear Rheometer as evaluation indexes and adopting orthogonal design method. The result indicated that the grade of base asphalt was the main influence factor.

关 键 词：FSBS改性沥青 低温性能 正交设计 影响因素 DSR 

分 类 号：U414.75[交通运输工程—道路与铁道工程]