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用电化学测试和长达五年的现场埋土试验的失重数据考察作为钢上阻挡层的各种涂(镀)覆材料在土壤中的防腐蚀性能。此外,在实验室内也进行各种土壤腐蚀环境下的防腐蚀性能短期评定。在现场埋土试验中,钢板上的热喷镀铝及螺栓上的涂覆改性环氧树脂,经五年考核显示出最佳的防腐蚀性能,它们的外观几乎无变化,失重也很小。涂(镀)层与阴极保护联合应用可增强防腐蚀能力。在实验室内各种土壤腐蚀环境下的试验结果与现场埋土试验结果一样,也表明在钢板上热喷镀铝具有最佳的防腐蚀性能。可惜钢板上
Electrochemical tests and weight loss data of up to five years of field burial tests were conducted to investigate the corrosion resistance of various coating (plating) coatings on steel as a barrier in soil. In addition, a short-term evaluation of the corrosion resistance under various soil erosion environments is also performed in the laboratory. Buried in the field test, the thermal sprayed on the aluminum plate and bolt modified epoxy resin, after five years of examination showed the best anti-corrosion properties, their appearance almost no change, weight loss is also small . Coated (plating) layer and the cathodic protection combined application can enhance the anti-corrosion ability. The test results under various soil corrosive environments in the laboratory are the same as those of the buried test in the field and also show that the thermal sprayed aluminum on the steel plate has the best anti-corrosion performance. Unfortunately, the plate