Evaluation of environmental factors to fatigue performance of asphalt mixes

作     者：虞将苗 张肖宁 Yu Jiangmiao;Zhang Xiaoning

作者机构：华南理工大学道路工程研究所广州510640 

出 版 物：《Journal of Southeast University(English Edition)》 (东南大学学报（英文版）)

年 卷 期：2005年第21卷第4期

页      面：486-489页

核心收录：

学科分类：0810[工学-信息与通信工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0812[工学-计算机科学与技术（可授工学、理学学位）] 

基　　金：TheCodeProgramoftheHighwayDepartmentofMinistryofCommunicationsofChina(No.200107) 

主　　题：asphalt mixes fatigue performance environmental factor uniform design phase angle cumulative dissipated energy 

摘      要：This paper studies the effect of different environmental factors, including the axle load weight, environmental temperature, vehicle speed, and the aging level of asphalt, on the fatigue performance of asphalt mixes based on four-point bending beam fatigue tests. A fractional factorial design method named ＂uniform design＂ was applied in experimental design. The relations of the environmental factors to initial stiffness, fatigue life, phase angle and cumulative dissipated energy were established with the general linear modeling method. It is found that there exists very good correlativity between the environmental factors and the fatigue performance indices of asphalt mixes. The coefficients of total correlation are mainly beyond 0. 95. The results indicate that the consideration of the effect of environmental factors is necessary in the fatigue performance evaluation on real asphalt pavement.