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研究了普通低碳钢和细晶粒钢在混凝土空隙液碱性环境下的耐腐蚀性。结果表明,细晶粒钢和低碳钢在混凝土腐蚀溶液中的公共钝化区域在-0.25~+0.60 V之间。微量元素的含量以及晶界的数量是影响细晶粒钢抗氯离子点蚀性能的主要原因。
The corrosion resistance of ordinary mild steel and fine grain steel in the alkaline environment of concrete void was studied. The results show that the common passivation area of fine grain steel and low carbon steel in concrete corrosion solution is between -0.25 ~ +0.60 V. The content of trace elements and the number of grain boundaries are the main factors that affect the chloride resistance of fine grain steel.