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    Assessment of corrosion-induced damage and its effect on the structural behavior of RC beamscontaining supplementary cementitious materials

    Access Status
    Fulltext not available
    Authors
    Ahmed, Shaikh
    Maalej, M
    Paramasivam, P
    Mihashi, H
    Date
    2006
    Type
    Journal Article
    
    Metadata
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    Citation
    Ahmed, Shaikh and Maalej, M. and Paramasivam, P. and Mihashi, H. 2006. Assessment of corrosion-induced damage and its effect on the structural behavior of RC beams containing supplementary cementitious materials. Progress in Structural Engineering and Materials 8 (2): pp. 69-77.
    Source Title
    Progress in Structural Engineering and Materials
    DOI
    10.1002/pse.214
    ISSN
    1365-0556
    Faculty
    School of Engineering
    Department of Civil Engineering
    Faculty of Science and Engineering
    URI
    http://hdl.handle.net/20.500.11937/47007
    Collection
    • Curtin Research Publications
    Abstract

    This paper reports the results of an experimental program on the effect of steel loss and corrosion induced-damage (cracking, delamination, spalling, etc.) on the post-corrosion flexural response of reinforced concrete beams incorporating supplementary cementing materials (fly ash, slag and silica fume) used as partial replacement of ordinary Portland cement. Eight reinforced concrete beams measuring 2.5 m in length and 210 300 mm in cross-section were cast, four of which were subjected to accelerated corrosion. Among all specimens incorporating supplementary cementing materials (SCM), the specimen containing fly ash showed the best performance in terms of the highest residual load carrying capacity at failure. Its best performance was also evident from the lowest measured steel loss, the least corrosion-induced cracking and the lowest tendency for the concrete cover to delaminate as measured by a concrete-embeddable fiber optic strain sensor (FOSS). Correlation between the amount of steel loss and the reductions in load carrying at failure was also established.

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