基于矿料界面滑移剪切行为的高温性能试验方法  

Test method for high temperature performance based on slipping and shearing behavior between mineral aggregate interfaces

作　　者：张争奇[1] 师晓鸽 栗培龙[1] 李玉鑫[2] 

机构地区：[1]长安大学特殊地区公路工程教育部重点实验室,陕西西安710064 [2]山东高速公路股份有限公司,山东青岛266000

出　　处：《合肥工业大学学报（自然科学版）》2014年第9期1102-1107,1147,共7页Journal of Hefei University of Technology：Natural Science

基　　金：国家自然科学基金资助项目(50478095);中央高校基本科研业务费专项资金资助项目(CHD2012JC028)

摘　　要：文章采用基于矿料微细观作用行为的宏观试验方法评价沥青混合料的高温性能,对不同级配的沥青混合料进行滑移剪切试验和车辙试验,并对试验指标进行相关性分析。结果表明,在滑移剪切试验的指标中,滑移剪切能EI与车辙动稳定度DS的相关性最好,EI作为滑移剪切试验的评价指标,能更加全面地评价沥青混合料的高温稳定性。文中推荐了60℃时加载速率20mm/min的滑移剪切试验条件。In this paper ,the high temperature performance of asphalt mixture was evaluated by using macroscopic test method based on microscopic interactions between mineral aggregates .The slipping and shearing test and the wheel tracking test with asphalt mixture of different gradations were conduc-ted .And the correlation analysis of the test indexes was made .The results show that among the inde-xes of the slipping and shearing test ,the slipping and shearing energy EI has the best correlation with rut dynamic stability DS ;and EI can evaluate the high temperature stability of asphalt mixture more comprehensively as the evaluation index of slipping and shearing test .T he test conditions at 60 ℃ and 20 mm/min are recommended .

关 键 词：沥青混合料 高温稳定性 滑移剪切 动稳定度 

分 类 号：U414[交通运输工程—道路与铁道工程]