近年来,沿海地区混凝土结构盐害损伤已成为社会问题。为此,日本建设省成立了“提高混凝土耐久性技术”课题,混凝土结构电化防腐技术就是该课题的一项成果。钢材腐蚀是由于钢材表面产生局部电位差所致。通常情况下,处于高碱性混凝土中的钢材,其表面呈现非动态化,不产生腐蚀。但是,如果盐化 In recent years, salt damage to concrete structures in coastal areas has become a social problem. To this end, the Japanese Ministry of Construction set up a “technology to improve durability of concrete” issue, the electrochemical corrosion of concrete structures is one of the achievements of the project. Steel corrosion is due to the local surface potential difference caused by the steel. Typically, the steel in overbased concrete, the surface showed non-dynamic, does not produce corrosion. However, if salty