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超声电化学机制对砂浆中氯离子萃取效率的影响

DOI: 10.7521/j.issn.0454-5648.2014.08.12

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Abstract:

为了研究间断通电、超声对钢筋混凝土中氯离子萃取效率的影响,采用不同超声电化学萃取机制对砂浆样品进行处理,并利用电化学方法对萃取后的钢筋腐蚀情况进行表征。结果表明间隔通电超声电化学萃取的样品耗能最低,水灰比为0.35和0.50的砂浆样品的萃取效率分别可以达到43.23%和44.45%,是一种有效可行的萃取机制;电化学萃取前期进行超声辅助的两种样品的氯离子萃取效率分别为48.72%和50.79%,高于萃取后期进行超声辅助的样品。

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