摘要
半电池法是目前国际上检测桥梁、公路等混凝土结构钢筋腐蚀的主要方法，美国ＡＳＴＭＣ８７６规定了实施半电池法的测量体系和方法。本文从电化学腐蚀的原理出发，分析讨论了半电池法的理论依据和适用条件，进而结合室内实验和现场测试，讨论了半电池法在水利工程上应用的可行性和存在的主要问题。
The half cell is a method applied to monitoring corrosion of reinforcedbar in concrete. In this paper,according to corrosion electrochemistry and thermodynamics,the conditions and limits of this method were analysed. Based on laboratory experiments and site tests the main questions of this method used on hydraulic structure were discussed.
基金
国家自然科学基金
关键词
无损检验
水工建筑物
钢筋混凝土
Non-destructive tests
Hydraulic structures
Reinforcing steels
Corrosion
