Experimental investigation of the spatial variability of the steel weight loss and corrosion cracking of reinforced concrete members

novel X-ray and digital image processing techniques

Sopokhem Lim, Mitsuyoshi Akiyama, Dan M. Frangopol, Haitao Jiang

    Research output: Contribution to journalArticle

    21 Citations (Scopus)

    Abstract

    The material properties of concrete structures and their structural dimensions are known to be random due to the spatial variability associated with workmanship and various other factors. This randomness produces spatially variable corrosion damages, such as steel weight loss and corrosion cracks. The structural capacity of reinforced concrete (RC) members strongly depends on the local conditions of their reinforcements. Modelling the spatial variability of steel corrosion is important, but steel corrosion in RC members can only be observed after severely damaging the concrete members. To understand the steel corrosion growth process and the change in the spatial variability of steel corrosion with time, continuous monitoring is necessary. In this study, X-ray photography is applied to observe steel corrosion in RC beams. The steel weight loss is estimated by the digital image processing of the X-ray photograms. The non-uniform distribution of steel weight loss along rebars inside RC beams determined using X-ray radiography and its correlation with longitudinal crack widths are experimentally investigated.

    Original languageEnglish
    Pages (from-to)1-17
    Number of pages17
    JournalStructure and Infrastructure Engineering
    DOIs
    Publication statusAccepted/In press - 2016 Jul 1

    Fingerprint

    Steel corrosion
    Stress corrosion cracking
    reinforced concrete
    Reinforced concrete
    corrosion
    Image processing
    steel
    X rays
    Steel
    X ray radiography
    Corrosion
    Cracks
    Radiography
    crack
    Concrete construction
    Materials properties
    Reinforcement
    radiography
    loss
    cracking (fracture)

    Keywords

    • chloride-induced corrosion
    • cracking
    • RC structures
    • spatial variability
    • steel weight loss
    • X-ray photograms

    ASJC Scopus subject areas

    • Civil and Structural Engineering
    • Geotechnical Engineering and Engineering Geology
    • Safety, Risk, Reliability and Quality
    • Building and Construction
    • Mechanical Engineering
    • Ocean Engineering

    Cite this

    @article{d6b6512df2ee4f3c90c1e29c7e86820a,
    title = "Experimental investigation of the spatial variability of the steel weight loss and corrosion cracking of reinforced concrete members: novel X-ray and digital image processing techniques",
    abstract = "The material properties of concrete structures and their structural dimensions are known to be random due to the spatial variability associated with workmanship and various other factors. This randomness produces spatially variable corrosion damages, such as steel weight loss and corrosion cracks. The structural capacity of reinforced concrete (RC) members strongly depends on the local conditions of their reinforcements. Modelling the spatial variability of steel corrosion is important, but steel corrosion in RC members can only be observed after severely damaging the concrete members. To understand the steel corrosion growth process and the change in the spatial variability of steel corrosion with time, continuous monitoring is necessary. In this study, X-ray photography is applied to observe steel corrosion in RC beams. The steel weight loss is estimated by the digital image processing of the X-ray photograms. The non-uniform distribution of steel weight loss along rebars inside RC beams determined using X-ray radiography and its correlation with longitudinal crack widths are experimentally investigated.",
    keywords = "chloride-induced corrosion, cracking, RC structures, spatial variability, steel weight loss, X-ray photograms",
    author = "Sopokhem Lim and Mitsuyoshi Akiyama and Frangopol, {Dan M.} and Haitao Jiang",
    year = "2016",
    month = "7",
    day = "1",
    doi = "10.1080/15732479.2016.1198397",
    language = "English",
    pages = "1--17",
    journal = "Structure and Infrastructure Engineering",
    issn = "1573-2479",
    publisher = "Taylor and Francis Ltd.",

    }

    TY - JOUR

    T1 - Experimental investigation of the spatial variability of the steel weight loss and corrosion cracking of reinforced concrete members

    T2 - novel X-ray and digital image processing techniques

    AU - Lim, Sopokhem

    AU - Akiyama, Mitsuyoshi

    AU - Frangopol, Dan M.

    AU - Jiang, Haitao

    PY - 2016/7/1

    Y1 - 2016/7/1

    N2 - The material properties of concrete structures and their structural dimensions are known to be random due to the spatial variability associated with workmanship and various other factors. This randomness produces spatially variable corrosion damages, such as steel weight loss and corrosion cracks. The structural capacity of reinforced concrete (RC) members strongly depends on the local conditions of their reinforcements. Modelling the spatial variability of steel corrosion is important, but steel corrosion in RC members can only be observed after severely damaging the concrete members. To understand the steel corrosion growth process and the change in the spatial variability of steel corrosion with time, continuous monitoring is necessary. In this study, X-ray photography is applied to observe steel corrosion in RC beams. The steel weight loss is estimated by the digital image processing of the X-ray photograms. The non-uniform distribution of steel weight loss along rebars inside RC beams determined using X-ray radiography and its correlation with longitudinal crack widths are experimentally investigated.

    AB - The material properties of concrete structures and their structural dimensions are known to be random due to the spatial variability associated with workmanship and various other factors. This randomness produces spatially variable corrosion damages, such as steel weight loss and corrosion cracks. The structural capacity of reinforced concrete (RC) members strongly depends on the local conditions of their reinforcements. Modelling the spatial variability of steel corrosion is important, but steel corrosion in RC members can only be observed after severely damaging the concrete members. To understand the steel corrosion growth process and the change in the spatial variability of steel corrosion with time, continuous monitoring is necessary. In this study, X-ray photography is applied to observe steel corrosion in RC beams. The steel weight loss is estimated by the digital image processing of the X-ray photograms. The non-uniform distribution of steel weight loss along rebars inside RC beams determined using X-ray radiography and its correlation with longitudinal crack widths are experimentally investigated.

    KW - chloride-induced corrosion

    KW - cracking

    KW - RC structures

    KW - spatial variability

    KW - steel weight loss

    KW - X-ray photograms

    UR - http://www.scopus.com/inward/record.url?scp=84976555009&partnerID=8YFLogxK

    UR - http://www.scopus.com/inward/citedby.url?scp=84976555009&partnerID=8YFLogxK

    U2 - 10.1080/15732479.2016.1198397

    DO - 10.1080/15732479.2016.1198397

    M3 - Article

    SP - 1

    EP - 17

    JO - Structure and Infrastructure Engineering

    JF - Structure and Infrastructure Engineering

    SN - 1573-2479

    ER -