CAJ | 학술논문

以二甲基乙醇胺为阻锈剂，通过对比试验，研究电化学除氯法和二甲基乙醇胺电渗透联合修复钢筋的效果及修复后钢筋的腐蚀电化学性能。结果表明：与二甲基乙醇胺阻锈剂的自然渗透和单一的电化学除氯法相比较，联合修复技术具有阻锈剂活性基团渗入更为有效与近似相同去除氯离子的能力；随着通电时间、水灰比的增加，氮元素渗入量和氯离子去除数量增加，而随着外加电压的增加，氮元素渗入量和氯离子去除数量先增加后不变；联合修复处理后砂浆中钢筋有很好的钝化保持能力。
이이갑기을순알위조수제，통과대비시험，연구전화학제록법화이갑기을순알전삼투연합수복강근적효과급수복후강근적부식전화학성능。결과표명：여이갑기을순알조수제적자연삼투화단일적전화학제록법상비교，연합수복기술구유조수제활성기단삼입경위유효여근사상동거제록리자적능력；수착통전시간、수회비적증가，담원소삼입량화록리자거제수량증가，이수착외가전압적증가，담원소삼입량화록리자거제수량선증가후불변；연합수복처리후사장중강근유흔호적둔화보지능력。
In this study, the effect of remediation of steel reinforcement by combining the electrochemical removal of chloride with electro-migration of N,N'-dimethylaminoethanol and the electrochemical corrosion properties of the steel reinforcement was investigated through a comparative experiment, in which N,N'-dimethylaminoethanol was used as a corrosion inhibitor. The results show that the combined remediation technology can more quickly transport the inhibition groups into the steel reinforcement, and is similarly effective in removing chloride from the steel reinforcement, when compared with the natural diffusion of N, N'-dimethylaminoethanol and the single electrochemical chloride removal method. With the increase of the duration of current and the water-cement ratio, the amounts of nitrogen electro-migrated into the specimens and the chloride removed from the specimens increased. In addition, as the applied voltage increased, the amounts of nitrogen electro-migrated into the specimens and the chloride removed from the specimens initially increased, then remained steadily unchanged. After remediation, the steel reinforcement in the mortar exhibited a strong ability to maintain passivation.