不同温度下采用插板法测试沥青表面能的试验研究  

Experimental Study on Surface Energy Measurement of Asphalt by Wilhelmy Plate Method at Different Temperatures

作　　者：金露 王丽静 涂崇志 冯光乐[3] 罗蓉[2] JIN Lu1, WANG Lijing1, TU Chongzhi2, FENG Guangle3, LUO Rong2(1.Hubei Changjiang Road and Bridge Co. Ltd. , Wuhan 430000, China;2. School of Transportation, Wuhan University of Technology, Wuhan 430063, China; 3.Division of Engineering Quality Supervision ,Department of Transportation of Hubei Province, Wuhan 430063,Chin)

机构地区：[1]湖北长江路桥股份有限公司,武汉430000 [2]武汉理工大学交通学院,武汉430063 [3]湖北省交通运输厅工程质量监督局,武汉460063

出　　处：《武汉理工大学学报（交通科学与工程版）》2018年第4期590-593,共4页Journal of Wuhan University of Technology（Transportation Science & Engineering）

基　　金：湖北省交通运输厅科技项目(201660062);交通运输部建设科技项目(2014318J22120)资助

摘　　要：为了探究不同温度下沥青表面能参数的变化规律,采用插板法测试了四种表面能试剂在各个温度下的表面张力,并拟合出试剂表面张力与温度的线性关系.同时在10~40°C内,测试了两种70#基质沥青和两种SBS改性沥青对应四个温度点时的表面能,试验数据表明,在插板法的前进过程中,沥青表面能与温度呈负相关趋势,在后退过程中,沥青表面能与温度呈正相关趋势且变化更为明显;同时,相比于SBS改性沥青,温度对70#基质沥青表面能的影响更大.In order to explore the variation law of asphalt surface energy parameters at different temperatures,the surface tension of four surface energy reagents at different temperatures were measured by wilhelmy plate method and the linear relationship between reagent surface tension and temperature was fitted.Within the range of 10 to 40℃,the surface energies of two 70# base asphalt binders and 2 SBS modified asphalt binders were measured at four different temperature points.The results indicate that the surface energy of asphalt binders has a negative correlation with temperature during the process of wilhelmy plate method while the surface energy of asphalt has a positive correlation with temperature during the receding process.In addition,compared with SBS modified asphalt binders,the temperature has greater influence on surface energy of 70# matrix asphalt.

关 键 词：道路工程 表面能 插板法 温度 沥青 

分 类 号：U414.75[交通运输工程—道路与铁道工程]