超疏水沥青混凝土抗凝冰性能及评价  

Performance and Evaluation of Anti-icing Super-hydrophobic Asphalt Concrete

作　　者：高英力[1,2] 代凯明 李学坤[2] 马路[2] 何倍 GAO Yingli;DAI Kaiming;LI Xuekun;MA Lu;HE Bei(Key Laboratory of Highway Construction&Maintenance Technology of Transportation Industry in Loess Region,Shanxi Transportation Research Institute,Taiyuan 030006;School of Traffic and Transportation Engineering,Changsha University of Science and Technology,Changsha 410114)

机构地区：[1]山西省交通科学研究院,黄土地区公路建设与养护技术交通行业重点实验室,太原030006 [2]长沙理工大学交通运输工程学院,长沙410114

出　　处：《材料导报》2017年第24期63-68,共6页Materials Reports

基　　金：湖南省交通厅科技计划项目(201313);黄土地区公路建设与养护技术交通行业重点实验室和山西省重点实验室开放课题(KLTLR-Y14-12)

摘　　要：引入超疏水设计理念,制备了具有超疏水抗凝冰性能的沥青混凝土试件。通过模拟试验和理论分析相结合,开展了超疏水沥青混凝土抗凝冰性能研究,测定了普通试件及超疏水试件抗凝冰性能差异,分析了不同工况下超疏水沥青混凝土试件的抗凝冰性能。通过接触角测定及表面能计算,评价了超疏水沥青混凝土的防冰、疏冰性能。结果表明,超疏水沥青混凝土可有效促进液滴滚落,滚落率高达80%。通过自行设计的落锤冲击试验间接测定了超疏水沥青混凝土试件的"冰-路"附着力,仅为普通沥青混凝土试件的38.5%。基于不同工况,降雪环境下超疏水沥青混凝土试件冰的残留率最低。接触角试验和表面能计算表明,超疏水沥青混凝土的表面能为1.97mJ/m2,仅为普通沥青混凝土的5.1%,体现了良好的抗凝冰性能。Asphalt concrete specimens with super hydrophobicity and ice resistance were made through introducing the principle of super hydrophobicity.The difference of anti-icing performance of common specimens and super hydrophobic specimens,the difference of anti-icing performance of super hydrophobic asphalt concrete under different environments were tested by simulation test and theoretical analysis.Anti-icing performance of super hydrophobic asphalt concrete was evaluated by contact angle and surface energy.The results showed that super-hydrophobic asphalt concrete could promote the drop of water,the dropping rate could reach 80%.The adhesion between ice and road surface was measured indirectly by self-designed impact test,and the adhesion was 38.5%of the ordinary specimen.The residual rate of ice on the specimen was the least in snowy conditions.The surface energy of super hydrophobic asphalt concrete was 1.97 mJ/m 2,which was measured by the measurement of contact angle and the calculation of surface energy,it was only 5.1%of ordinary asphalt concrete and showed a good anti-icing performance.

关 键 词：超疏水 抗凝冰 沥青混凝土 评价 表面能 

分 类 号：U416[交通运输工程—道路与铁道工程]