| 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 |
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| 引用本文： | 唐聿明,牛乐,左禹. 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[J]. 电化学, 2010, 16(4): 368. DOI: 10.61558/2993-074X.3364 |
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| 作者姓名： | 唐聿明 牛乐 左禹 |
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| 作者单位： | 北京化工大学材料科学与工程学院,北京,100029;北京化工大学材料科学与工程学院,北京,100029;北京化工大学材料科学与工程学院,北京,100029 |
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| 摘 要： | 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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| 关 键 词： | CLDH 模拟孔隙液 钢筋 腐蚀 中性化 |
| 收稿时间： | 2010-11-28 |
Effect of CLDH on Rebar Corrosion Behavior in Chloride Contaminated Neutral Pore Solutions |
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| Abstract: | The effect of calcined LDH-MgAl-CO3 on rebar corrosion behavior in chloride ion contaminated neutral concrete pore solutions was investigated in this paper.Corrosion potentials of rebars in pore solutions after treatment with CLDH were higher than before treatment.According to polarization tests,passivated region of rebars in pore solutions after treatment with CLDH was found apparently instead of activation.EIS tests showed that CLDH made the impedance of specimens increase.The measurements of pH and chloride ion concentration after treatment indicated that / of pore solutions decreased by 4～5 magnitude orders. |
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| Keywords: | CLDH pore solution rebar corrosion neutral |
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