铁道科学与工程学报2017，Vol.14Issue(2)：250-256,7.
基于评价SBS改性沥青高温性能的修正软化点方法
A revised softening point method based on evaluating the high temperature property of SBS modified asphalt
摘要
Abstract
To achieve the evaluation method of SBS modified asphalt related to the high temperature performance of mixture, the softening points of SBS modified asphalt with different types and dosages were analyzed under different test conditions (heating medium and board distance). Meanwhile, rutting tests were done to SBS modified asphalt mixture. The results show that the softening point measured under current specification method (ASTM D36)have no direct relationship with the high performance of mixture, and it is hard to identify the difference of softening points of different SBS modified asphalt. When the test conditions are revised to "the board distance of 10 mm and the heating medium of glycerinum", the softening points of different SBS modified asphalt measured under revised method could be significantly distinguished and are closely related to the dynamic stability of mixtures.关键词
道路工程/软化点/试验条件/高温性能/SBS改性沥青/修正软化点法Key words
road engineering/softening point/test condition/high temperature performance/SBS modified asphalt/revised softening point method分类
交通工程引用本文复制引用
孙培,韩森,高榕,原健安..基于评价SBS改性沥青高温性能的修正软化点方法[J].铁道科学与工程学报,2017,14(2):250-256,7.基金项目
国家自然科学基金资助项目(51578076) （51578076）
