盐污染混凝土电化学除盐研究
ELECTROCHEMICAL CHLORIDE EXTRACTION TECHNOLOGY OF THE CONCRETE POLLUTED BY CHLORIDE IONS
摘 要
采用电化学除盐的方法对盐污染混凝土进行除盐试验,结果表明在除盐早期,混凝土中氯离子排除量主要与电流密度和混凝土中氯离子的含量直接相关,电化学除盐后混凝土内部的氯离子含量呈由里及外逐渐增大的趋势；而上下两端面的氯离子含量较少,中间段的较高.
混凝土
氯离子
Electrochemical chloride extraction(ECE)
Concrete
Chloride ion
Abstract
Concrete polluted by chloride ions was investigated with electrochemical chloride extraction(ECE) technology.The concentration of chloride ions extracted from concrete was connected directly to the current density and initial chloride ion content in the desalination early age.Chloride ions distribution in concrete increased gradually from inner sample to peripheral sample after desalination and chloride ion content was less in the top and underside than in the middle of the concrete.
中图分类号 TU528
所属栏目 试验研究
基金项目 湖北省教育厅重点项目(D200567001)和广东省科技攻关项目(编号:2005B32801004)
收稿日期 2007/1/16
修改稿日期 2007/3/26
网络出版日期
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引用该论文: CHENG Li,DENG Chun-lin,YU Qi-jun,WEI Jiang-xiong,WANG Xin-xiang,HUANG Xu-quan,WANG Xiao-ping. ELECTROCHEMICAL CHLORIDE EXTRACTION TECHNOLOGY OF THE CONCRETE POLLUTED BY CHLORIDE IONS[J]. Corrosion & Protection, 2007, 28(8): 387～391
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参考文献
【1】Helland S.Assessment and prediction of service life of marine structures tool for performance based requirements[C]//Workshop on Design of Durability of Concrete.Berlin:s.n.,June,1999.
【2】樊云昌,曹兴国,陈怀荣.混凝土中钢筋腐蚀的防护与修复[M].北京:中国铁道出版社,2001.
【2】樊云昌,曹兴国,陈怀荣.混凝土中钢筋腐蚀的防护与修复[M].北京:中国铁道出版社,2001.
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