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    Influence of crack widths on corrosion of reinforcing steel bar in fiber reinforced cementitious composites

    Access Status
    Fulltext not available
    Authors
    Mihashi, H.
    Ahmed, Shaikh
    Kobayakawa, A.
    Date
    2011
    Type
    Conference Paper
    
    Metadata
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    Citation
    Mihashi, H. and Ahmed, S.F.U. and Kobayakawa, A. 2011. Influence of crack widths on corrosion of reinforcing steel bar in fiber reinforced cementitious composites, in C. Leung and K.T. Wan (ed), International RILEM Conference on Advances in Construction Materials Through Science and Engineering, Sep 5-7 2011, pp. 602-609. Hong Kong: RILEM Publications.
    Source Title
    Proceedings of the International RILEM Conference on Advances in Construction Materials through Science and Engineering
    Source Conference
    International RILEM Conference on Advances in Construction Materials Through Science and Engineering
    ISBN
    978-2-35158-116-2
    School
    Department of Civil Engineering
    URI
    http://hdl.handle.net/20.500.11937/47074
    Collection
    • Curtin Research Publications
    Abstract

    This paper reports the long term test results on the corrosion durability of reinforcing steel in three series of pre-cracked beams containing ordinary mortar, fiber reinforced cementitious composites (FRCC) containing polyethylene (PE) fibers and hybrid fiber reinforced cementitious composites (HFRCC) containing steel cord (SC)-PE fibers. In each series at least four pre-cracked beams with maximum crack width ranging from 0.1mm to 0.5mm are considered. Durability performances of the specimens are examined through regular monitoring of the corrosion current hence the calculated steel loss, the change of the crack width expanded due to corrosion and the corrosion induced crack through visual inspection. At the end of the corrosion tests, the reinforcing bars in all specimens are exposed to observe the corrosion depth and the actual amount of steel loss. Results show that the HFRCC series exhibited excellent performance compared to mortar and FRCC series.

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