摘要
为了系统评价就地热再生沥青混合料疲劳性能,应用简介拉伸试验评定了不同应力比、不同温度及空隙率下的就地热再生沥青混合料疲劳性能,研究结果表明:随着应力比水平从0.3逐渐升高至0.5,沥青混合料疲劳寿命呈指数形式逐渐降低,且对传统的单对数疲劳方程呈现较好的相关性;空隙率每增加1%疲劳寿命将会降低45%左右。
In order to systematically evaluate the fatigue performance of hot in place recycled asphalt mix-ture, the fatigue performance of hot in place recycled asphalt mixture under different stress ratio, temperature and void ratio was evaluated by tensile test. The results show that the fatigue life of asphalt mixture decreases exponentially with the increase of stress ratio from 0.3 to 0.5, and it has a good correlation with the traditional single logarithm fatigue equation;the fatigue life will de-crease about 45% when the void ratio increases by 1%.
出处
《材料科学》
CAS
2021年第8期901-910,共10页
Material Sciences
