饰面清水混凝土自清洁技术研究与应用

Research and application of self-cleaning technology for facing fair-faced concrete

混凝土等无机材料的表面极易被各类污染物侵害,导致其表面光泽减少、斑渍增多、表面粉化等现象,严重影响其美观和耐久性。通过分析“荷叶效应”的憎水原理,研究“仿生”自清洁材料的疏水、自清洁效果,探索自清洁材料的不同涂刷方式对饰面清水混凝土防水、自清洁、外观等方面的影响。研究表明,滚涂3遍混凝土色疏水自清洁材料可显著提高清水混凝土表面致密性和耐久性,解决饰面清水混凝土易脏污、耐久性差的问题。

The surface of inorganic materials such as concrete was vulnerable to various pollutants,caused its surface gloss to reduce,the spot increased,the surface powdered and so on,seriously affected its beautiful appearance and the durability.The hydrophobic principle of lotus leaf effect was analyzed,hydrophobicity and self-cleaning effects of bionic self-cleaning materials was studied,effects that different shelling-out ways of self-cleaning materials on waterproofing,self-cleaning and appearance of facing fair-faced concrete was explored.The results show that applying three layers of concrete hydrophobic self-cleaning material can significantly improve the surface compactness and durability of fair-faced concrete,and the problems of dirty and poor durability of facing fair-faced concrete was solved.