Influence of steel reinforcement corrosion on the stiffness of simply supported concrete beams

O'FLAHERTY, Fin, MANGAT, Pal, LAMBERT, Paul and BROWN, E. H. (2010). Influence of steel reinforcement corrosion on the stiffness of simply supported concrete beams. In: SAUSE, Richard and FRANGOPOL, Dan, (eds.) Bridge maintenance, safety and management - IABMAS'10. Bridge, maintenance, safety and management . CRC press.

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    Official URL: http://www.crcpress.com/product/isbn/9780415877862

    Abstract

    The in-service performance of reinforced concrete beams can be severely affected through cor-rosion of the steel reinforcement when it becomes subjected to harsh corrosive environments containing chlo-rides and carbon dioxide. In such instances, corrosion is likely to occur in the steel reinforcement, with the expansive nature of the corrosion products likely to induce cracking and spalling of the concrete. A loss of structural integrity (stiffness) will occur and this can severely influence the serviceability of the member. The purpose of this paper is to investigate the relationship between degree of corrosion and loss of stiffness in corrosion damaged under-reinforced concrete beams. Beams (100mm x 150mm cross section) were subjected to accelerated corrosion in the laboratory and subsequently tested in flexure to failure. The paper reports on the results of these tests and relates the degree of corrosion in the main steel to the percentage loss in stiffness in the concrete beams.

    Item Type: Book Section
    Additional Information: IABMAS10: Proceedings of the fifth international IABMAS conference, Philadelphia, USA, 11-15th July 2010
    Research Institute, Centre or Group: Materials and Engineering Research Institute > Structural Materials and Integrity Research Centre > Centre for Infrastructure Management
    Depositing User: Helen Garner
    Date Deposited: 25 Oct 2011 17:04
    Last Modified: 25 Oct 2011 17:04
    URI: http://shura.shu.ac.uk/id/eprint/3975

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