长沙理工大学学报（自然科学版）2016，Vol.13Issue(1)：7-13,7.
沥青混合料半圆弯拉疲劳试验
Fatigue test of asphalt mixture with semi-circular bending
摘要
Abstract
Based on the semi-circular bending test method,the fatigue performance of asphalt mixture is compared under the condition of multiple factors.The orthogonal test design method for SMA-13,SMA-20 and ATB-25,three kinds of asphalt mixture,-5,25, 60 ℃ three kinds of temperature,5,10,15 Hz three frequencies,0.3,0.5,0.7 three kinds of stress ratios,and 0%~3%,3%~6%,6%~9% three porosity factors under the semi-circular bending fatigue test.The test results were analyzed and compared with the analysis of variance,and the influence of various factors on the fatigue life of asphalt mixture was compared,and then the linear regression method was used to return 50%,90% and 95%three kinds of guarantee rates.The research results show that the fatigue life of asphalt mixture has different effects on different test factors.Different types of asphalt mixture have different influence factors on the size of the different factors,the fatigue life of ATB-25>SMA-13>SMA-20.关键词
沥青混合料/半圆弯拉试验/正交设计/疲劳寿命/回归疲劳方程Key words
asphalt mixture/semi-circular bending test/orthogonal design/fatigue life/re-gressive fatigue equation分类
交通运输引用本文复制引用
谢军,罗文浩..沥青混合料半圆弯拉疲劳试验[J].长沙理工大学学报（自然科学版）,2016,13(1):7-13,7.基金项目
国家自然科学基金资助项目(51008039/E080703) （51008039/E080703）
交通运输部应用基础研究项目(2013319825030) （2013319825030）
公路工程省部共建教育部重点实验室开放基金资助项目(kfj080107)。 （kfj080107）
