东南大学学报（英文版）Issue(3)：384-388,5.DOI:10.3969/j.issn.1003-7985.2015.03.015
基于 DSR 试验的 WMA 沥青结合料中温流变性能分析
Rheological properties of warm mix asphalt binder by DSR test at medium temperature
摘要
Abstract
The rheological properties including the complex modulus G* and the phase angle δof matrix and warm mix asphalt (WMA)binders were measured by using the dynamic shear rheometer (DSR ) test at the medium temperature ranging from 16 to 40 ℃,and the relationships between the fatigue factor G* sinδand the matrix binder property,WMA additive and test temperature were established.It is found that G* decreases with the increasing temperature while δincreases inversely,and G* of the asphalt binder with high WMA additive dosage is large,and δis small.G*sinδexponentially decreases with the increasing temperature and linearly increases with the increase in additive dosage,and the amplitudes of variation are large at low temperatures and high additive dosages.The effect of WMA additive on the rheological property is more remarkable for the matrix asphalt binder with low G*.Besides,aging has a great effect on the property of matrix asphalt binder,and a slight effect on the interaction between asphalt and additive.The high additive dosage can increase the fatigue cracking potential of the asphalt binder.关键词
温拌沥青/动态剪切试验/中温/流变性能/疲劳因子Key words
warm mix asphalt/dynamic shear rheometer (DSR ) test/medium temperature/rheological property/fatigue factor分类
交通工程引用本文复制引用
张久鹏,刘国强,杜慧,裴建中,马学军..基于 DSR 试验的 WMA 沥青结合料中温流变性能分析[J].东南大学学报（英文版）,2015,(3):384-388,5.基金项目
The National Natural Science Foundation of China (No．51408043),the Natural Science Foundation of Shaanxi Province (No．2014JQ7278)． （No．51408043）
