摘要
采用4点弯曲疲劳试验系统对改性沥青SMA混合料的疲劳特性进行评价分析,通过对比高温与低温、未老化与长期老化混合料的疲劳特性,获得疲劳曲线与疲劳方程,并建立疲劳寿命预测模型。结果表明,改性沥青SMA混合料具有优良的抗疲劳耐久性能。
Fatigue performance of the modified bitumen SMA is evaluated and analyzed through test using four crooked fatigue testing equipment. Comparing with high temperature and low temperature, un-aged and long-term aged fatigue test, fatigue curve, fatigue equation and fatigue life forecast model are obtained. The results indicate that the modified SMA has excellent durable anti-fatigue performance.
出处
《科学技术与工程》
2007年第14期3610-3613,共4页
Science Technology and Engineering
关键词
改性沥青SMA
疲劳性能
温度
老化
modified bitumen SMA fatigue performance temperature aging
