Paper Title:
Effect of Electrochemical Chloride Extraction on the Steel Reinforced Concrete
  Abstract

Electrochemical chloride extraction (ECE) is used for the rehabilitation of chloride-contaminated concrete. High current densities of steel surface are applied between the steel and a temporary external anode which is placed on the concrete surface. Anions are pushed away from the cathode (steel reinforcement), and cations are accumulated at the cathode. In this study chloride ions were found in the electrolyte during ECE. The extraction efficiency of chlorides was obvious. After treatment, the amount of chlorides around the reinforcement was greatly reduced. ECE had insignificant effect on the compressive strength. Steel potentials in treated specimens showed a strong shift towards more positive values, while potentials in control specimens remained strongly negative.

  Info
Periodical
Key Engineering Materials (Volumes 400-402)
Edited by
Jingsi Huo, Yan Xiao, Zongjin Li and Shuaib Ahmad
Pages
221-225
DOI
10.4028/www.scientific.net/KEM.400-402.221
Citation
J. Z. Xu, Z. Ding, F. Xing, "Effect of Electrochemical Chloride Extraction on the Steel Reinforced Concrete ", Key Engineering Materials, Vols. 400-402, pp. 221-225, 2009
Online since
October 2008
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Price
$32.00
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