基于灰熵分析法评价改性沥青的温度敏感性  

Evaluation on temperature susceptibility of modified asphalt based on grey relation entropy method

作　　者：郭咏梅[1] 康爱红[1] 

机构地区：[1]扬州大学建筑科学与工程学院,江苏扬州225127

出　　处：《重庆文理学院学报（自然科学版）》2012年第6期24-26,共3页Journal of Chongqing University of Arts and Sciences

基　　金：国家自然科学基金资助项目(51108402)

摘　　要：应用灰熵分析法,对9种改性沥青的针入度指数PI、针入度粘度指数PVN、粘温指数VTS等常规温度敏感性指标与通过动态剪切试验测试的指标GTSG'的灰熵关联度进行分析,结果表明:以25℃针入度和135℃粘度为基础计算的针入度粘度指数PVN25-135与GTSG'具有较高的灰熵关联度,能较准确地评价改性沥青的温度敏感性.The normal temperature susceptibility indices such as penetration index（PI）,penetration-viscosity number（PVN） and viscosity-temperature susceptibility（VTS） were studied about nine kinds of modified asphalts.The grey entropy relational degree between each index and GTSG,which measured by using dynamic shearing test,was analyzed by the grey relation entropy method.The results show that the PVN25-135 value,which calculated on the basis of the penetration value at 25 ℃ and the viscosity value at 135℃,show good grey entropy relational degree with GTSG,and it can evaluate accurately temperature susceptibility of modified asphalt.

关 键 词：改性沥青 温度敏感性 灰关联熵 

分 类 号：U414[交通运输工程—道路与铁道工程]