Modelling the influence of steel fibres on the electrical resistivity of cementitious composites

Anders Ole Stubbe Solgaard, Alexander Michel, Henrik Stang, Mette Rica Geiker, André Küter, Carola Edvardsen

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

    Abstract

    One of the governing factors on the corrosion of embedded reinforcement is the electrical resistivity of the concrete. The combination of steel fibres and conventional reinforcement bars has been used in a number of structures. However, the addition of electrical con-ductive fibres might influence the overall resistivity of the material and thereby the corrosion rate of the embedded reinforcement. To the knowledge of the authors, only preliminary studies have been made on the influence of corrosion of the reinforcement bars from the addition of the electrical conductive steel fibres. Thus the present work concerns the electrical resistivity of cementitious composites and some of the parameters influencing it in order to get a more thorough understanding of the factors governing the overall resistivity. The basis of the present study is an experimental investigation of the electrical resistivity of steel fibre reinforced concrete (SFRC). The parameters investigated in the following are the fibre geometry, the fibre volume and the transitional resistance. On basis of the experimental results, a model, taking the resistivity of the fibres and the concrete matrix into account is proposed.
    Original languageEnglish
    Title of host publication3rd International PhD Workshop on Modelling the Durability of reinforced Concrete
    Publication date2009
    Publication statusPublished - 2009
    Event3rd International RILEM PhD Student Workshop on Modelling the Durability of Reinforced Concrete - University of Minho, Guimaraes, Portugal
    Duration: 22 Oct 200924 Oct 2009
    Conference number: 3
    http://www.rilem.net/gene/main.php?base=500218&id_publication=73

    Conference

    Conference3rd International RILEM PhD Student Workshop on Modelling the Durability of Reinforced Concrete
    Number3
    LocationUniversity of Minho
    Country/TerritoryPortugal
    CityGuimaraes
    Period22/10/200924/10/2009
    Internet address

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