黏层油合理用量试验及其对路面性能影响机理分析  

Experiment of Reasonable Content of Tack Asphalt Coat and Analysis of its Effect Mechanism to Pavement Performance

作　　者：成猛[1] 艾长发[1] 李永明[1] 

机构地区：[1]西南交通大学土木工程学院,成都市610031

出　　处：《公路》2011年第11期35-39,共5页Highway

基　　金：中央高校基本科研业务费专项资金项目;项目编号SWJTU09CX013;四川省交通运输厅科技项目;项目编号SC2008.1-3-1

摘　　要：为探讨黏层油合理用量及其对路面性能的影响机理,采用直剪试验、斜剪试验及小梁弯曲试验分别测定了不同黏层油用量的复合圆柱体试件的抗剪强度及复合小梁试件的抗弯拉应变。研究结果表明:(1)在沥青混凝土路面层间喷洒黏层油,可以增强沥青混凝土面层的结构整体性,并且黏层油的喷洒量存在一个最佳值,在此最佳用量下,沥青混凝土面层层间黏结更有效,使用性能显著提高;(2)以复合试件路用性能达到最佳为基准,相同温度条件、不同试验方法所确定出的最佳黏层油用量不同,相同试验方法、不同温度条件所确定出的最佳黏层油用量也不同;(3)对于黏层油合理用量的确定,应采用正交试验方法,以便综合考虑温度条件、试验方法等因素的影响。The shear strength of composite cylinder samples and the flexural-tensile strain of compo-site beam samples are measured respectively using three methods of Direct Shear Test,Bevel Shear Test and Flexural Test in lab.to study the reasonable content of tack asphalt coat and its effect mechanism to pavement performance.The results show that,firstly,the structural integrity can be improved by spraying tack asphalt on the inter-surface,and there is an optimum content of tack asphalt coat for usage,which can put the cohesive effectiveness and road performance in the higher level.Secondly,the optimum content is different under the condition of different temperatures and different test methods as well,based on the best road performance of composite samples.Last,orthogonal experiment should be adopted to get the reasonable content of tack asphalt coat,to take several factors into overall consideration,such as temperatures and test methods.

关 键 词：黏层油 直剪试验 斜剪试验 小梁弯曲试验 合理用量 影响机理 

分 类 号：U416.217[交通运输工程—道路与铁道工程]