现代交通技术2025，Vol.22Issue(6)：8-13,19,7.
超声波测试与间接拉伸试验下沥青路面动态模量相关性研究
Study on the Correlation Between Dynamic Modulus of Asphalt Pavement Based on Ultrasonic Test and Indirect Tensile Test
刘文道 1刘广华 2刘小飞 1曹迪 2王猛1
作者信息
- 1. 中国建筑土木建设有限公司,北京 100073
- 2. 中建八局检测科技有限公司,北京 102488
- 折叠
摘要
Abstract
To achieve convenient and efficient determination and evaluation of the dynamic modulus of asphalt pavements,rel-ying on old road reconstruction and expansion projects,standard core specimens of asphalt pavement were prepared by using multi-function core drilling machine and high-precision double-sided saw.Ultrasonic tests and indirect tensile tests were conducted,and the dynamic modulus test results from the surface course and base course were fitted using various func-tional forms to analyze the correlation between the dynamic modulus obtained from the two methods.At the same time,the fit-ting relationship between the two was validated in reverse by obtaining core sample test results from different regions and differ-ent mixture types.The results show that a clear correlation exists between the dynamic modulus of asphalt pavement measured by ultrasonic test and indirect tensile test,and the quadratic polynomial function has the best fitting effect,followed by expo-nential function and poor power function;the correlation of base course modulus obtained by the two methods is obviously high-er than that of the surface course.Therefore,in the modulus parameter evaluation system for asphalt pavements,especially for semi-rigid base pavement,ultrasonic test is recommended to replace the indirect tensile test as a method to quickly evaluate the modulus characteristics of asphalt pavement.关键词
道路工程/沥青路面/超声波测试/间接拉伸试验/动态模量Key words
road engineering/asphalt pavement/ultrasonic test/indirect tensile test/dynamic modulus分类
交通工程引用本文复制引用
刘文道,刘广华,刘小飞,曹迪,王猛..超声波测试与间接拉伸试验下沥青路面动态模量相关性研究[J].现代交通技术,2025,22(6):8-13,19,7.
