Influence of corrosion on the friction characteristics of the steel/concrete interface

J. Cairns, Y. Du, D. Law

    Research output: Contribution to journalArticle

    Abstract

    This paper reports results of an experimental programme to measure changes in friction characteristics of the interface between reinforcement and concrete as a result of the formation of corrosion products on the surface of the steel. The aim of the study was to determine whether a weak corrosion layer contributes to reported reductions in residual bond capacity. Corrosion was carried out under accelerated conditions using three different conditioning regimes. Principal parameters included in the investigation are conditioning regime, the amount of corrosion, and the stiffness of the restraint to expansion of the corrosion products. Experimental results indicate that corrosion products do not impair friction characteristics of a bar/concrete interface when surface crack width does not exceed 1.0 mm. © 2005 Elsevier Ltd. All rights reserved.

    Original languageEnglish
    Pages (from-to)190-197
    Number of pages8
    JournalConstruction and Building Materials
    Volume21
    Issue number1
    DOIs
    Publication statusPublished - Jan 2007

    Fingerprint

    Concretes
    Friction
    Corrosion
    Steel
    Reinforcement
    Stiffness
    Cracks

    Keywords

    • Bond
    • Corrosion
    • Reinforced concrete

    Cite this

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    abstract = "This paper reports results of an experimental programme to measure changes in friction characteristics of the interface between reinforcement and concrete as a result of the formation of corrosion products on the surface of the steel. The aim of the study was to determine whether a weak corrosion layer contributes to reported reductions in residual bond capacity. Corrosion was carried out under accelerated conditions using three different conditioning regimes. Principal parameters included in the investigation are conditioning regime, the amount of corrosion, and the stiffness of the restraint to expansion of the corrosion products. Experimental results indicate that corrosion products do not impair friction characteristics of a bar/concrete interface when surface crack width does not exceed 1.0 mm. {\circledC} 2005 Elsevier Ltd. All rights reserved.",
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    Influence of corrosion on the friction characteristics of the steel/concrete interface. / Cairns, J.; Du, Y.; Law, D.

    In: Construction and Building Materials, Vol. 21, No. 1, 01.2007, p. 190-197.

    Research output: Contribution to journalArticle

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