| 热压式沥青混合料高温黏弹塑性特征分析 |
| |
| 引用本文： | 陆阳,游宏,黄晚清.热压式沥青混合料高温黏弹塑性特征分析[J].公路,2011(1). |
| |
| 作者姓名： | 陆阳 游宏 黄晚清 |
| |
| 作者单位： | 陆阳,LU Yang(西南交通大学土木工程学院,成都市,610031);游宏,黄晚清,YOU Hong,HUANG Wan-ging(四川省交通勘察设计研究院,成都市,610041) |
| |
| 摘 要： | 采用单轴蠕变循环加卸载试验,探讨了热压式沥青混凝土路面柔性基层沥青混合料HRA20在高温、低应力状态下的黏弹塑性.试验结果表明,温度的升高将导致混合料对外荷载的黏弹塑性响应的迅速增长,但是,黏性(特别是黏弹性)变形对时间变化的敏感程度却随温度的升高反而有所下降.所以,高温主要通过应力函数来影响混合料黏滞性对温度的敏感性,促使其由黏弹塑性向塑性稳定流动过渡.
|
| 关 键 词： | 热压式沥青混合料 黏弹塑性 循环加卸载试验 |
Laboratory Evaluations of Visco-Elastoplastic Properties of Hot Rolled Asphalt Mixture at High Temperatures |
| |
| LU Yang,YOU Hong,HUANG Wan-ging.Laboratory Evaluations of Visco-Elastoplastic Properties of Hot Rolled Asphalt Mixture at High Temperatures[J].Highway,2011(1). |
| |
| Authors: | LU Yang YOU Hong HUANG Wan-ging |
| |
| Institution: | LU Yang1,YOU Hong2,HUANG Wan-qing2(1.School of Civil Engineering,Southwest Jiaotong University,Chengdu 610031,China,2.Sichuan Institution of Transportation Survey and Designing,Chengdu 610041,China) |
| |
| Abstract: | Visco-elastoplastic properties of hot rolled asphalt mixture HRA20 at high temperatures and under low stress levels are studied experimentally using creep and recovery tests.Experiment results reveal that rise of the temperature will lead to much stronger responses of visco-elastoplasticity of asphalt concrete to the loads.But changes of viscous deformations with respect to loading durations seems less pronounced at high temperatures.It is therefore deduced that high temperature mainly affects viscous behav... |
| |
| Keywords: | hot rolled asphalt mixture visco-elastoplastic properties creep and recovery tests |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
