化工学报2011，Vol.62Issue(9)：2668-2673,6.DOI:10.3969/j.issn.0438-1157.2011.09.042
外加应力对钢筋/环氧涂层体系在模拟孔隙液中失效的影响
Influence of applied load on failure of epoxy coated rebar in simulated concrete pore solution
摘要
Abstract
The failure process of epoxy-coated rebars under different magnitudes of loads in simulated concrete pore solution with chloride ions was studied by electrochemical impedance spectrum (EIS) technology. The results showed that coating resistance of the sample under load declined, and water absorption increased obviously. The higher the load was, the faster the failure of the sample would be. The coating water absorption test result was consistent with that of EIS. In addition, the applied load made the coating adhesion of the sample decline, and the adhesion decreased more obviously under a higher load. Therefore, the increase of coating porosity and the decrease of coating adhesion under applied load were the main reasons leading to the degradation of coating protective performance.关键词
环氧涂层钢筋/EIS/吸水率/附着力/失效Key words
epoxy-coated rebar/ EIS/ water absorption/ adhesion/ failure分类
化学化工引用本文复制引用
胡旭晖,赵旭辉,左禹,唐聿明..外加应力对钢筋/环氧涂层体系在模拟孔隙液中失效的影响[J].化工学报,2011,62(9):2668-2673,6.基金项目
国家自然科学基金项目(50731004). （50731004）
