沥青混合料蠕变柔量的试验研究与力学解析  

Experimental study and mechanical analysis on the creep of the asphalt mixture

作　　者：程永春[1] 许淳[1] 梁春雨[1] 黄珊[1] 邵俊华[1] 

机构地区：[1]吉林大学交通学院,长春130022

出　　处：《吉林大学学报（工学版）》2008年第S2期70-73,共4页Journal of Jilin University:Engineering and Technology Edition

基　　金：高等学校博士学科点专项科研基金项目(20050183037).

摘　　要：在不同温度、不同应力条件下进行了单轴压缩蠕变试验,通过数学方法精确计算了蠕变柔量函数式中表征材料黏弹性特性的4个物理参数,进而得到蠕变柔量的定量解析。并根据时温等效原理和实验结果得到温度移位因子的函数关系,把在各恒温条件下得到的实验结果拓展到连续变化的温度区域,从而得到了蠕变柔量随温度和时间变化的二元函数定量解析表达式。The creep of asphalt mixture,which is a type of viscoelastic material,was tested and studied.At different temperatures and in different stress conditions under the uniaxial compression creep test,four physical parameters that reflect the characteristics of the creep were calculated accurately through mathematical methods.The formula of the creep against time was then deduced. Also deduced was the formula of the temperature displacement factor according to the time- temperarure equivalent principle and the e...

关 键 词：道路工程 沥青混合料 蠕变柔量 单轴压缩 时温等效 定量解析 

分 类 号：U414[交通运输工程—道路与铁道工程]