长沙理工大学学报（自然科学版）2018，Vol.15Issue(1)：30-35,78,7.
3种AC-20沥青混合料的动态模量及其主曲线拟合与分析
The dynamic modulus of three kinds of AC-20 asphalt mixture and its main curve fitting and analyses
摘要
Abstract
In order to make sure the rule of the dynamic modulus of the commonly used AC-20 mixture for asphalt concrete pavement,the same material sources of coarse aggregate, fine aggregate and mineral filler are mixed.Marshall test method is used to determine the optimum asphalt content of lake asphalt and SBS modified asphalt and 70#asphalt mixture. Uniaxial compression test method by simple performance test instrument is used to test the dynamic modulus.Based on the application of time-temperature equivalent principle,Arrhe-nius equation parameters is fitted by NCHRP09-29 Mastersolver Version 2.2,and set up three kinds of dynamic modulus master curve of asphalt mixture at 20 ℃.The results show that dynamic modulus master curve of the lake asphalt modified asphalt and SBS modified asphalt AC-20 are always located above the base asphalt AC-20,and the asphalt modifier to the mixture performance is improved significantly.Lake asphalt modified asphalt and SBS modified asphalt AC-20 dynamic modulus master curve have approximation,crossover phe-nomenon,and show that different modified asphalt mixture performance have the different scope of application.关键词
道路工程/改性沥青/沥青混合料/动态模量/主曲线/单轴压缩试验方法/阿伦尼乌斯方程Key words
road engineering/modified asphalt/asphalt mixture/dynamic modulus/master curve/uniaxial compression test method/Arrhenius equation分类
建筑与水利引用本文复制引用
罗鸣,陈超,王涛..3种AC-20沥青混合料的动态模量及其主曲线拟合与分析[J].长沙理工大学学报（自然科学版）,2018,15(1):30-35,78,7.基金项目
江西省交通厅科技项目(2013Y0001) （2013Y0001）
