冻融循环对沥青路面全厚度车辙影响的研究  

Tests of Impact on Rut in Full Thickness of Asphalt Pavement by Freeze-thaw Cycling

作　　者：吴瑞麟[1,2] 马光华[1,2] 黄海燕 李向东[1,2] 刘意恒[1,2] 李浩[1,2] 

机构地区：[1]华中科技大学土木工程与力学学院,湖北武汉430074 [2]华中科技大学控制结构湖北省重点实验室,湖北武汉430074 [3]黄石市城市建设投资开发公司,湖北黄石435000

出　　处：《中国市政工程》2008年第6期4-5,共2页China Municipal Engineering

基　　金：湖北省建设厅科技项目(鄂建[2006]212.K200647)

摘　　要：为研究冻融循环对武汉地区沥青路面的影响程度,分别对经历过0、10、20、40次冻融循环的沥青混合料试件进行了冻融循环试验研究,主要测定试件的动弹性模量和质量损失等技术指标。同时对经历过上述不同次冻融循环次数的试件进行全厚度车辙试验,得出动稳定度DS和车辙深度RD随冻融循环次数的变化规律,并对上述结果进行了分析。研究结果表明,冻融循环对沥青路面车辙的影响不容忽视。To study the impact of freeze-thaw cycling on the asphalt pavement in the area of Wuhan, asphalt mixture specimens through 0, 10, 20 and 40 freeze-thaw cycles are tested respectively, mainly to measure the technical indices such as the dynamic elastic modulus and loss in mass, etc. Meanwhile, full depth rut test is conducted on the said specimens to obtain the rule of variation of dynamic stability (DS) and rut depth (RD) with the number of freeze-thaw cycling. It is shown in the study that the impact of freeze-thaw cycling to the rut in the asphalt pavement shall not be overlooked.

关 键 词：沥青路面 冻融循环 全厚度车辙 动弹性模量 试验研究 

分 类 号：U416.217[交通运输工程—道路与铁道工程]