Corrosion measurements on reinforcement in silica fume concrete

J.G. Cabrera, Peter A. Claisse

    Research output: Contribution to journalArticle

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    Abstract

    Corrosion of reinforcement is a major cause of deterioration of concrete structures. Linear polarisation resistance measurements can be used to test different concrete mixes to predict their performance in protecting the steel in structures. An apparatus to carry out these measurements on concretes containing silica fume has been used at Leeds. When carrying out linear polarisation measurements care must be taken to ensure that the readings are not disrupted by the capacitance of the interface and the resistance of the concrete. In this project a time delay of 30 seconds was used to reduce the effect of the capacitance and the resistance of the concrete was measured separately and subtracted. In order to obtain results in laboratory time scales it is necessary to accelerate the corrosion. In this project the concrete samples were placed in a salt solution and an anodic voltage was applied. The results show that under these conditions the silica fume concretes performed better than the ordinary portland cement control concretes.
    Original languageEnglish
    Pages (from-to)259-267
    JournalArabian Journal for Science and Engineering
    Volume20
    Issue number2
    Publication statusPublished - 1995

    Fingerprint

    Silica fume
    Reinforcement
    Concretes
    Corrosion
    Capacitance
    Polarization
    Concrete mixtures
    Portland cement
    Concrete construction
    Deterioration
    Time delay
    Salts
    Steel
    Electric potential

    Keywords

    • concrete
    • corrosion
    • linear polarisation resistance

    Cite this

    Corrosion measurements on reinforcement in silica fume concrete. / Cabrera, J.G.; Claisse, Peter A.

    In: Arabian Journal for Science and Engineering, Vol. 20, No. 2, 1995, p. 259-267.

    Research output: Contribution to journalArticle

    Cabrera, J.G. ; Claisse, Peter A. / Corrosion measurements on reinforcement in silica fume concrete. In: Arabian Journal for Science and Engineering. 1995 ; Vol. 20, No. 2. pp. 259-267.
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