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以建设部行业标准JC 475-92新拌砂浆法为基准,研究了外加剂对建筑材料中钢筋锈蚀的影响,同时,也研究了其有效性和可靠性,证明了外加电流的物理意义,测定了NC早强剂在不同电流密度和氯离子浓度下的电位-时间曲线,对方法中出现的过渡状态提出了具体的判断方法。
Based on the industry-standard JC 475-92 fresh mortar method of Ministry of Construction, the influence of admixture on corrosion of reinforcing steel in building materials was studied. At the same time, its effectiveness and reliability were also studied. The physical meaning of applied current was proved. The potential-time curves of NC precursors at different current densities and chloride ion concentrations suggest a specific method of judging the transient state of the process.