Nonexponential Transients Resulting from Application of the Interruption Technique to Assess Corrosion Rate of Steel in Concrete

V. Feliu; A. Cobo; J.A. Gonzalez

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Nonexponential Transients Resulting from Application of the Interruption Technique to Assess Corrosion Rate of Steel in Concrete

机译：Nonexponential Transients Resulting from Application of the Interruption Technique to Assess Corrosion Rate of Steel in Concrete

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摘要

A numerical method was developed to model the voltage response after a direct current (DC) interruption through an equivalent circuit representing a steel/concrete system. Based on computer simulation and experimental observations, the paper discusses the applicability of classical procedures of analysis of the voltage decay curves in order to assess the corrosion status of reinforcing steel. It is shown that the accuracy of these determinations may be strongly dependent on the nonexponential behavior of the response, and it may therefore be significantly affected by the duration of the current pulse applied and the portion of the decay curve used in the analysis. Apparently, more elaborate methods of analyzing voltage decay curves are necessary.

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来源
《Corrosion: The Journal of Science and Engineering》 |2002年第1期|72-81|共10页
作者
V. Feliu; A. Cobo; J.A. Gonzalez;
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作者单位

Fachbereich Physik, Universitat Kassel, 34109 Kassel, Germany;

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原文格式 PDF
正文语种英语
中图分类金属腐蚀与保护、金属表面处理;
关键词
corrosion rate; current-interruption technique; decay curves; nonexponential transients; reinforced concrete;

Nonexponential Transients Resulting from Application of the Interruption Technique to Assess Corrosion Rate of Steel in Concrete

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