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采用含铬高硅铸铁作主阳极，导电混凝土作次阳极，对湛江某码头大修中的两个Ａ梁和一个管沟进行外加电流阴极保护试验，结果证明，该阴极保护技术对抑制位于潮差区和飞溅区混凝土中钢筋腐蚀是有效的，而且比采用环氧沥青漆进行修补更为经济。
Using chromium-containing high-silicon cast iron as the main anode and conductive concrete as the secondary anode, an external current cathodic protection test was carried out on two A-beams and one trench in a terminal overhaul in Zhanjiang. The results showed that the cathodic protection technology was effective in suppressing the tidal range Corrosion in the concrete in the zone and splash zone is effective and more economical than repairing with epoxy asphalt paint.