Selection Matrix for Non-Destructive Testing of NPP Concrete Structures

Fahim Al-Neshawy, Esko Sistonen, Miguel Ferreira, Edgar Bohner, Jari Puttonen

    Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

    Abstract

    In general, the deterioration factors affecting concrete structures may be divided into (i) physical, (ii) chemical, and (iii) mechanical factors including also (iv) defects. Deterioration can result in loss of strength and unsafe conditions of the structures. NPP contain a variety of concrete structures that their structural performance of which is essential to the safety of the plant. Early detection of concrete structural deterioration in NPP is critical issue considering the consequence that they can eventually lead to. To ensure the safety and integrity of NPP, non-destructive testing (NDT) is carried out during the in-service life time. However, current NDT faces several challenges: (i) the NDT can be performed only during the revision time and the test process is time limited, (ii) the accuracy of the test devices, (iii) the compatibility of different NDT methods to the concrete structures and their deterioration mechanisms, (iv) the global uniformity of the NDT test methods and (v) the creditability of the test results and analysis. This paper is critically assess the NDT techniques currently in use to build a selection matrix for non-destructive testing of NPP concrete structures and to fulfil for the needs of NPP infrastructure evaluation in Finland. The results will specify the means for the assessment of suitability of different NDT methods for the NPP concrete structures. The results will also provide the nuclear power companies and utilities with reliable non-destructive test techniques to ensure the safety of the nuclear power plant facilities.
    Original languageEnglish
    Title of host publicationWCNDT 2016
    Number of pages9
    Publication statusPublished - 2016
    MoE publication typeA4 Article in a conference publication
    Event19th World Conference on Non-Destructive Testing, WCNDT 2016 - Munich, Germany
    Duration: 13 Jun 201617 Jun 2016

    Conference

    Conference19th World Conference on Non-Destructive Testing, WCNDT 2016
    Abbreviated titleWCNDT 2016
    CountryGermany
    CityMunich
    Period13/06/1617/06/16

    Keywords

    • reinforced concrete structures
    • nuclear power plants
    • non-destructive testing
    • selection matrix
    • inspection
    • deterioration
    • defect
    • long term operation

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