Novel Approach for Non-Destructive Evaluation of Electrochemical Potentials in Reinforced Concrete Structures

Conference paper
Part of the RILEM Bookseries book series (RILEM, volume 6)

Abstract

Various non-destructive diagnostic tools are available for a condition assessment of reinforced concrete structures. Potential mapping is a helpful method for locating areas with a high risk of chloride induced corrosion. The influence of the reinforcement continuity was investigated by using laboratory specimens. Furthermore the potential differences were compared between a measuring setup with a reinforcement connection and by measuring with two external electrodes. In assessing the results a novel approach was developed to locate critical areas without a reinforcement connection. The results are displayed by means of vectors similar to the needle of a compass that point to the areas of high corrosion potential, enabling an easy and non-destructive assessment.

Keywords

Building diagnoses Corrosion of steel in concrete Non-destructive testing Potential mapping Reinforced concrete 

References

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Copyright information

© RILEM 2013

Authors and Affiliations

  1. 1.Institute of Building Materials ResearchRWTH Aachen UniversityAachenGermany

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