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Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: Application of Electrodeposition Technique for Concrete Rehabilitation
Author(s): J. S. Ryu, and N. Otsuki
Publication: Special Publication
Appears on pages(s): 917-930
Keywords: chemical tests; cracking (fracturing); reinforced concretes; resurfacing; static loads
Abstract:Electrochemical techniques are increasingly popular as a means of rehabilitating deteriorated reinforced concrete. One such method is presented in this paper. The aim of electrode position in concrete rehabilitation method is to fill the cracks in concrete and to coat the concrete surface by electrodeposits of chemical compounds. Investigations on concrete beam specimens were conducted in this study. After causing the specimens to crack under a specified load, the specimens were immersed in a solution, then a constant current between the embedded steel in concrete and an electrode in the solution was applied for 8 weeks. The degree of crack closure and the amount of surface coating from the precipitation of electrodeposits were checked. The results indicate that electrodeposits formed on the concrete surface are able to close concrete cracks and to coat the concrete surface. In addition, the investigations show that the presence of electrodeposits led to a substantial decrease of concrete permeability and some improvement of the mechanical properties of the crack concrete. Therefore, it may be considered that the electrode position technique can be usefully applied as a rehabilitation method for cracked reinforced concrete structures.
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