Corrosion is a main source of degradation of most offshore and ship structures. Especially ballast tanks are vulnerable to corrosion. Protection is provided by coating systems, postponing the onset of uniform corrosion. It is therefore essential to have a coating system in place and intact. Inspecting ballast tanks for the integrity of the coating system is an operational challenge. The improvement is to detect coating degradation before the corrosion process starts and only enter when it is required.

    Within the European project SAFEPEC [1], it has been reported that continuous inspection of the condition of the coating system helps improving the reliability of the structure. Hoogeland et al. [3] described a coating condition monitoring system that uses electrochemical measurements, i.e. the electrical current between steel to be protected and an anode. This paper demonstrates the reliability of the monitoring system by experimental validation using a Bayesian approach.

    A long term measurement campaign has been performed on board a vessel. Inside a ballast tank, specimens are attached and intermittently exposed to seawater. The electrical current between these plates and the anode are measured over about two years. The measurements are analyzed and based on the results, the condition of the coating of the installed specimens is predicted. By showing the actual status of the specimens, the reliability of the system is shown and the applicability for wider use is explained.


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    Titel :

    Coating Condition Monitoring and the Practical Application


    Weitere Titelangaben:

    Lecture Notes in Civil Engineering


    Beteiligte:
    Okada, Tetsuo (Herausgeber:in) / Suzuki, Katsuyuki (Herausgeber:in) / Kawamura, Yasumi (Herausgeber:in) / Hoogeland, Martijn (Autor:in) / Van Dijk, T. (Autor:in) / Vredeveldt, A. W. (Autor:in)

    Kongress:

    Practical Design of Ships and Other Floating Structures ; 2019 ; Yokohama, Japan September 22, 2019 - September 26, 2019



    Erscheinungsdatum :

    2020-10-04


    Format / Umfang :

    15 pages





    Medientyp :

    Aufsatz/Kapitel (Buch)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




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