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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 被引量：3

Effect of CLDH on Rebar Corrosion Behavior in Chloride Contaminated Neutral Pore Solutions
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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. 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.
作者 唐聿明 牛乐 左禹
机构地区 北京化工大学材料科学与工程学院
出处 《电化学》 CAS CSCD 北大核心 2010年第4期368-372,共5页 Journal of Electrochemistry
基金 国家自然科学基金重点项目(50731004)资助
关键词 CLDH 模拟孔隙液 钢筋 腐蚀 中性化 CLDH pore solution rebar corrosion neutral
分类号 TG174 [金属学及工艺—金属表面处理]
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参考文献7

  • 1Moreno M, Morris W, Alvarez M G, et al. Corrosion of reinforcing steel in simulated concrete pore solutionseffect of carbonation and chloride content [ J]. Corrosion Science,2004,46 ( 11 ) : 2681-2699.
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  • 3刘玉,杜荣归,林昌健.氯离子对模拟混凝土孔隙液中钢筋腐蚀行为的影响[J].电化学,2005,11(3):333-336. 被引量：26
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二级参考文献8

  • 1Vinod Kumar. Protection of steel reinforcement for concrete-A review[J]. Corrosion Reviews ,1988, 16(4): 317～358.
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  • 8汪鹰,史苑芗,魏宝明,林昌健.用XPS研究钢筋钝化膜和C1^-对钝化膜的影响[J].中国腐蚀与防护学报,1998,18(2):107-112. 被引量：29

共引文献25

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电化学
2010年 第4期

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