基于不同工况路用降温涂层的耐久性能  

Durability of road cooling coating under different working conditions

作　　者：孙晓龙 覃潇[2] 禹振轩 王朝辉[2] 郭滕滕 SUN Xiaolong;QIN Xiao;YU Zhenxuan;WANG Chaohui;GUO Tengteng(School of Civil and Transportation Engineering,Guangdong University of Technology,Guangzhou,Guangdong 510006,China;School of Highway,Chang′an University,Xi′an,Shaanxi 710064,China)

机构地区：[1]广东工业大学土木与交通工程学院,广东广州510006 [2]长安大学公路学院,陕西西安710064

出　　处：《江苏大学学报（自然科学版）》2018年第6期739-744,共6页Journal of Jiangsu University：Natural Science Edition

基　　金：广东工业大学校内青年重点项目(17QNZD004);交通运输部建设科技项目(201331849A270)

摘　　要：为确定不同工况条件下路用降温涂层的耐久性能,制备了两种路用降温涂层,全面评价了路用降温涂层的降温性能,借助耐水性、耐温变、耐化学腐蚀及耐磨耗等性能试验,研究了单一工况下路用降温涂层的耐久性能.在此基础上,模拟道路使用环境和行车荷载,研究了复合工况下路用降温涂层的耐压、耐轮碾及耐磨耗等性能.结果表明:路用降温涂层降温效果最高可达9℃以上;单一工况条件下,路用降温涂层耐水性能、耐温变性能、耐化学腐蚀性能及耐磨耗性能均能满足规范要求;复合工况条件下,路用降温涂层的耐压及耐轮碾系数均在90%以上,磨耗损失量小于0. 2 g,具有良好的复合耐久性能,能够满足道路应用需要.To investigate the endurance performance of a novel pavement coating under different working conditions,two types of new cooling coatings were prepared.The cooling effects of the cooling coatings were investigated systematically.The endurance properties of cooling coatings under single working condition were discussed through water resistance,temperature changing resistance,chemical resistance and wearing resistance tests.Simulating the environmental factors and vehicle factors,the endurance tests of cooling coatings under complex working conditions were conducted using pressure resistance,rutting resistance and wearing resistance indices.The results show that the novel cooling coating has excellent cooling performance,and the best cooling effect can reach above 9℃.Under the single working condition,water resistance,temperature changing resistance,chemical etching resistance and wearing resistance of cooling coatings can meet the requirements of standards.Under the complex working conditions,the pressure resistance and the rutting resistance coefficients are both above 90%,and the wearing mass loss is less than 0.2 g.The new pavement cooling coatings have excellent endurance performance to meet the road requirements.

关 键 词：降温涂层 耐久性能 降温性能 耐水性能 耐化学腐蚀性能 

分 类 号：U414.1[交通运输工程—道路与铁道工程]