基于动态频率扫描的环氧沥青混合料性能研究  

Study of viscous-elastic properties of epoxy asphalt mixtures by using dynamic frequency sweep

作　　者：张肖宁[1] 任永利[1,2] 迟凤霞 

机构地区：[1]华南理工大学土木与交通学院,广东广州510641 [2]广东省高速公路有限公司,广东广州510100 [3]浙江省交通科学研究所,浙江杭州310006

出　　处：《华中科技大学学报（自然科学版）》2009年第7期102-105,共4页Journal of Huazhong University of Science and Technology(Natural Science Edition)

基　　金：国家自然科学基金资助项目(50278037)

摘　　要：为了研究环氧沥青混合料的粘弹性能,采用动态流变试验,通过动态频率扫描获得不同温度下环氧沥青混合料随频率变化的关系,分析了环氧沥青混合料的粘弹性能.同时结合室温等效原理,获得了动态剪切复数模量主曲线,在跨越19个数量级的频率范围内分析比较了环氧沥青混合料的粘弹性能.结果表明:环氧沥青混合料具有与普通沥青混合料类似的粘弹性变化规律,也存在各自的粘弹性差异.The viscous-elastic properties of epoxy asphalt mixtures was studied by dynamic rheology test. The connections between dynamic sheer complex modulus and frequency of epoxy asphalt mixture were got by dynamic frequency sweep at different temperature. The viscous-elastic properties of epoxy asphalt mixture were analyzed. Master curves of dynamic sheer complex modulus changing along with the frequency were got by using time-temperature equal principle. So viscous-elastic properties of epoxy asphalt mixture were also analyzed in overstepping 19 magnitudes of frequency section. Results indicate that viscous-elastic property of epoxy asphalt mixture is same to ordinary asphalt mixture, but they have otherness.

关 键 词：环氧沥青混合料 动态频率扫描 粘弹性能 主曲线 动态剪切复数模量 

分 类 号：U416.217[交通运输工程—道路与铁道工程]