水泥混凝土粘附界面的影响因素

从水泥混凝土与工作部件表面的界面水膜特性、水泥混凝土特性、工作部件表面特性、外部因素等角度入手,分析了水泥混凝土粘附界面影响因素。结果表明,水泥混凝土和工作部件的界面产生粘附的主要影响因素包括界面水膜、水灰比、砂灰比、沙率、粗集料形状、外加剂、工作部件表面形状、材料以及外力和温度等。通过分析对接触界面的水膜连续性和粘附界面的实际接触面积有影响的关键性因素,探讨了实现对水泥混凝土减粘脱附的有效途径,为利用土壤动物减粘脱附仿生研究成果解决水泥混凝土粘附问题创造了条件。

Influencing Factors of the Contact Interfaces between Cement Concrete and its Working Parts

By analyzing the characteristics of the water films,the performance of cement concrete,the form and materials of the working parts and some external factors at the contact interfaces between cement concrete and its working parts,the main factors,such as the interfacing water film,water cement ratio,sand cement ratio,sand ratio,the sharp of rough aggregate,admixture,the form and materials of the working parts,the normal pressure and working temperature are given.Based on studying the key factors,the effective ways of reducing the cement concrete adhesion are developed.The results lay the foundation for developing the bionic technology to reduce cement concrete′s adhesion in road construction.