超疏水仿生水泥混凝土路面防覆冰技术及效能评价  

Anti-icing Technology and Effectiveness Evaluation of Super-hydrophobic Bionic Cement Concrete Pavement

作　　者：高英力[1] 李学坤[1] 代凯明 余先明[1] 袁江[1] GAO Yingli LI Xuekun DAI Kaiming YU Xianming YUAN Jiang(Key Laboratory of Bridge Engineering Safety Control by Hunan Province, Department of Education, Changsha University of Science ＆ Technology, Changsha 410114)

机构地区：[1]长沙理工大学桥梁工程安全控制省部共建教育部重点实验室,长沙410114

出　　处：《材料导报》2017年第14期132-137,共6页Materials Reports

基　　金：湖南省交通厅科技计划项目(201313);长沙理工大学桥梁工程安全控制省部共建教育部重点实验室开放基金项目

摘　　要：通过微纳米路表构建与超疏水材料涂覆技术相结合,制备了超疏水仿生水泥混凝土路面模型试件;开展超疏水材料涂覆技术研究,分析总结其制备工艺;采用自行设计的"冰-路"附着强度测试装置进行防覆冰性能测试,同时开展接触角测量试验、路面表面能计算及耐久性试验,综合评价超疏水仿生水泥混凝土路面的疏水、防冰效能。结果表明:超疏水水泥混凝土试件表面冰的残留率为29.9%,是普通试件的1/3左右,间接反映了超疏水路面具有较好的疏冰性能;与普通试件的接触角0°相比,超疏水水泥混凝土试件的接触角为153.5°,达到超疏水状态;表面能计算表明超疏水材料的作用降低了路面表面能,仅为普通水泥路面的3.4%,进一步验证了超疏水水泥混凝土路面可显著降低"冰-路"附着强度;通过模拟轮胎与路面的摩擦作用,接触角依然在90°以上,表明超疏水路面耐久性良好。The model of super-hydrophobic bionic cement concrete pavement was prepared,combining micro-nano pavement building with super-hydrophobic material coating technology.The coating technology of super-hydrophobic materials was studied and the preparation process was analyzed.Anti-icing performance was tested by self-designed ice-road adhesion strength testing device,the contact angle and durability were tested,the surface energy was calculated,then the anti-icing performance of super-hydrophobic bionic cement concrete pavement was evaluated comprehensively.The results indicate that the residual rate of ice on the surface of super-hydrophobic cement concrete specimens is 29.9%,which is about 1/3of the common specimen,showing good anti-ice performance.The contact angle of the super-hydrophobic cement concrete specimen is 153.5°,while the contact angle of the common specimen is 0°.The calculation of surface energy reveal that the construction of the super-hydrophobic coating can reduce the surface energy,merely 3.4% of the ordinary cement pavement.It is further verified that the super-hydrophobic cement concrete pavement can significantly reduce the ice-road adhesion strength.The contact angle is still above 90°by simulating the friction between the tire and the road surface,indicating that the super hydrophobic pavement has good durability.

关 键 词：超疏水 防覆冰 水泥混凝土路面 附着强度 表面能 效能评价 

分 类 号：TB383[一般工业技术—材料科学与工程]