环氧沥青的粘弹特性研究

应用动态粘弹力学的理论和方法，对环氧沥青进行了不同应力、应变、温度和时间条件下的流变学性能试验研究。试验结果表明，与普通改性沥青相比，其蠕变柔量小约4个数量级；复数模量随频率降低（温度升高）而降低并与贮存模量共同趋于定值，而在高频（低温）条件下则显示出一定的粘性特征；各项粘弹性参数远远大于改性沥青和普通沥青，具有很好的抵抗流动变形能力。环氧沥青是一种完全不同于普通沥青和改性沥青的粘弹性材料。

Study On viscous-elastic Behavior Of Epoxy Asphalt

In this paper, rheology performance of epoxy asphalt in different condition(such as stress, strain, temperature and time) was studied with theory and methods of dynamic viscous-elastic mechanics. The test results showed :1.The creep complians is much lower than that of SBS modified asphalt; 2. G* reduced while frequency get lower, at last G* and G’ tend to be one constant value，on the contrary, it shows viscous properties with low frequency; 3. Viscous-elastic variables deduced from Burgers module are much greater than those of base asphalt and SBS modified asphalt, Its property of residence to deformation or rutting；In general, epoxy asphalt is a kind of special viscous-elastic material which is different from base asphalt and SBS modified asphalt.