Corrosion monitoring of steel structure coating degradation

Journal article (2018)

Authors

Bojan Zajec Slovenian National Building and Civil Engineering Institute
Mirjam Bajt Leban Slovenian National Building and Civil Engineering Institute, Akrapovič d.d.
Tadeja Kosec Slovenian National Building and Civil Engineering Institute
Vili Kuhar Slovenian National Building and Civil Engineering Institute
Andraž Legat Slovenian National Building and Civil Engineering Institute
Stanislav Lenart Slovenian National Building and Civil Engineering Institute
Karmen Fifer Bizjak Slovenian National Building and Civil Engineering Institute
Kenneth Gavin Geo-engineering - CEG
Research Group
Geo-engineering (CEG) (TU Delft)
Copyright: © 2018 Bojan Zajec, Mirjam Bajt Leban, Tadeja Kosec, Vili Kuhar, Andraž Legat, Stanislav Lenart, Karmen Fifer Bizjak, Kenneth Gavin
DOI
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https://doi.org/10.17559/TV-20170206004112
Railways Corrosion Electrochemical impedance spectroscopy Steel structures Coatings Electrical resistance probes
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Published Date

01-10-2018

Language

English

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Faculty

Civil Engineering & Geosciences

Department

Geoscience and Engineering

Research Group

Geo-engineering

Abstract

An important aspect regarding the sustainability of steel structures is to ensure the structure is protected from corrosion. A number of surface coatings are available that play an important role in protecting these structures. An important part of the management of these structures is reliable and regular inspection along with methods for early detection of corrosion processes. In this paper, a development and application of sensors for monitoring the steel coating degradation and corrosion damage to steel substrate are presented. An encapsulated corrosion kit with integrated EIS sensors and ER probes was developed. To test its efficiency, steel probes were coated with selected coatings in the laboratory and their performance was assessed under various aggressive atmospheres, including; salt, industrial and humid atmosphere.