沥青混合料低温抗裂性能评价方法研究

Evaluation Method Research on Asphalt Mixture Anti-cracking Performance at Low Temperature

本文对各种沥青混合料低温抗裂性能试验和评价指标作了分析,并进行了比较,基于试验的可靠度和试验难度进行了综合评分。通过室内试验对比了间接拉伸试验和低温弯曲试验两种试验方法,并进行了数据分析,结果表明间接拉伸试验比低温弯曲试验的结果变异系数更小,敏感度更高。

In this paper, all kinds of asphalt mixture at low temperature crack resistance test and evaluation index were analyzed,and on the basis of the comparison, based on the difficulty of test reliability and test scores synthetically. Through indoor experiment compared the indirect tensile test and low temperature bending test two test methods, and data analysis, the results show that the indirect tensile test the variation coefficient less than low temperature bending test result, higher sensitivity.