摘要
分析了多孔隙大碎石沥青混合料(LSPM)动态模量和相位角对温度和加载频率的依赖性,然后利用时间与温度置换原理计算位移系数并建立了动态模量和相位角的通用曲线.最后将动态模量实测结果与Witczak预测模型进行了比较。指出了Witczak预测模型不适宜预测开级配大孔隙率沥青混合料的动态模量。
The time and temperature dependency of the LSPM dynamic modulus and phase angle is analyzed, the master curve position principle, the results dy of namic modulus and phase angle is build using time-temperature super test and the Witczak predictive equation is compared and the Witczak predictive equation is considered not suitable to predict dynamic modulus of open gradation and porous asphalt concrete.
出处
《石油沥青》
2008年第1期15-19,共5页
Petroleum Asphalt