Title: An approach for measurement of chloride threshold values

Authors: Dimitrios Boubitsas; Luping Tang

Addresses: CBI Swedish Cement and Concrete Research Institute, Box 857, SE-501 15 Borås, Sweden. ' Department of Civil and Environmental Engineering, Chalmers University of Technology, SE-412 96 Gothenburg, Sweden

Abstract: Chloride induced corrosion is one of the major causes for degradation of reinforced concrete structures. One of the most important factors in this process is the critical chloride content (chloride threshold value) in the vicinity of the reinforcement that causes initiation of corrosion. In this work the development of a practice-related approach that includes specimen shape, preconditioning, corrosion measurement techniques, and calculation concepts, for determining the critical chloride content are presented. The results in this study showed that the presented approach for determining chloride threshold values functioned fairly well, and suggestions for further improvement are proposed.

Keywords: chloride-induced corrosion; chloride threshold values; critical chloride content; concrete structures; reinforced concrete; specimen shape; preconditioning; corrosion measurement.

DOI: 10.1504/IJSTRUCTE.2013.050762

International Journal of Structural Engineering, 2013 Vol.4 No.1/2, pp.24 - 34

Available online: 02 Dec 2012 *

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