摘要
不同集料特征对硬质沥青高模量混合料的性质(如高温性能、模量、疲劳)具有显著的影响,选择两种差异明显的集料(一种玄武岩、另一种为石灰岩),基于集料图像测试系统(AIMS)对其各项特征进行了较为详细地对比分析,参照法国高模量混合料设计流程,对不同集料硬质沥青高模量混合料的各项性能指标协调设计方法进行了试验研究。结论表明:针对不同集料性质,通过对级配和硬质沥青用量的调整,可以实现混合料高温性能、模量和疲劳性能的均衡设计。
Different characteristics of aggregates have significant impact on the high modulus mixture properties of hard asphalt(such as high temperature properties,modulus and fatigue).Two kinds of aggregate are chosen(one is basalt,the other is limestone),and there is obvious difference between them.Based on the Aggregate Image Measurement System(AIMS),detailed comparison and analysis on their all characteristics are conducted in the paper.Refer to the French high modulus mix design process,the various performance indicators coordinated design methods are tested on the high modulus mixture of hard asphalt.Conclusions indicate that according to different aggregate properties,it can be achieved a balanced design of high temperature performance,modulus and fatigue properties on the mixture thronging the gradation and the hard asphalt dosage adjustment.
出处
《公路》
北大核心
2015年第12期210-217,共8页
Highway
基金
国家标准制订计划
项目编号20140985-T-333
交通运输部应用基础研究项目
项目编号:2014319775130
