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Non-destructive monitoring based on corrosion potential

Non-destructive monitoring based on corrosion potential Corrosion is a relevant mechanism of the material decaying. The emergence of cathodes and anodes zones are influenced by electrons transfers. If the cathodes and anodes emerge in different locations of a structure, it can contribute to a generalized corrosion process in an area. Thus, the analyses of the corrosion by punctual measures can be not an assertive way to characterize the extension of the damage. Aggressive agents can accelerate the corrosion evolution, as chlorides and sulphates, for instance. The present work has as the main aim analyses how the corrosion potential mapping can be used to characterize the corrosion evolution over the time in a real structure. For that an electrode with copper sulphate was used to collect the values of corrosion potential in a steel frame structure, placed at Fortaleza, Ceará, Brazil. Measurements were performed through 81 points distributed along the structure, distant 20 cm each other. The values of corrosion potential were monitored for 99 days. The results showed that the non-destructive monitoring of corrosion potential can be a very efficient way to assess the evolution and to quantify the corrosion in a panel over the time. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Building Pathology and Rehabilitation Springer Journals

Non-destructive monitoring based on corrosion potential

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References (57)

Publisher
Springer Journals
Copyright
Copyright © Springer Nature Switzerland AG 2020
ISSN
2365-3159
eISSN
2365-3167
DOI
10.1007/s41024-020-0076-2
Publisher site
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Abstract

Corrosion is a relevant mechanism of the material decaying. The emergence of cathodes and anodes zones are influenced by electrons transfers. If the cathodes and anodes emerge in different locations of a structure, it can contribute to a generalized corrosion process in an area. Thus, the analyses of the corrosion by punctual measures can be not an assertive way to characterize the extension of the damage. Aggressive agents can accelerate the corrosion evolution, as chlorides and sulphates, for instance. The present work has as the main aim analyses how the corrosion potential mapping can be used to characterize the corrosion evolution over the time in a real structure. For that an electrode with copper sulphate was used to collect the values of corrosion potential in a steel frame structure, placed at Fortaleza, Ceará, Brazil. Measurements were performed through 81 points distributed along the structure, distant 20 cm each other. The values of corrosion potential were monitored for 99 days. The results showed that the non-destructive monitoring of corrosion potential can be a very efficient way to assess the evolution and to quantify the corrosion in a panel over the time.

Journal

Journal of Building Pathology and Rehabilitation – Springer Journals

Published: Feb 11, 2020

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