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电化学  2010 

焙烧水滑石对含氯中性化混凝土孔隙液中钢筋腐蚀行为的影响

, PP. 368-372

Keywords: CLDH,模拟孔隙液,钢筋,腐蚀,中性化

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Abstract:

研究了碳酸根型镁铝水滑石(LDH-MgAl-CO3)焙烧产物(CLDH)在含氯离子的中性化混凝土模拟孔隙液中对钢筋腐蚀行为的影响.极化曲线电位监测以及EIS测试表明,经CLDH处理后的孔隙液中钢筋的极化曲线出现明显的钝化区间,其腐蚀电位较未处理的有一定提高,表面的阻抗也有较大增加.此外,离子浓度分析发现,较未处理时,经CLDH处理后的孔隙液其[Cl-]/[OH-]值降低了4~5个数量级.

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