Effect of oil coating on steel bar on the strength of reinforced concrete

E Adukpo, S Oteng-Seifah, P Manu

    Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


    The strength of steel-reinforced concrete greatly depends on the adequacy of the bond between concrete and steel reinforcement and this can be impaired by the surface condition of reinforcing steel. Oil on the surface of steel reinforcement has been mentioned to potentially have an adverse effect on steel-concrete bonding action and consequently structural performance, but this effect remains to be buttressed empirically. This study thus considered the effect of the surface condition of deformed mild steel bar on the bond strength and the flexural strength of steel-reinforced concrete, with the surface condition being engine oil coating. Bond and flexural test involving concrete embedded with steel bars coated with engine oil and un-coated steel bars (i.e. bars not coated with engine oil) revealed that engine oil coating considerably reduces the bond and flexural strength of reinforced concrete. Steel reinforcement during storage and installation should thus be protected from contamination by oiling agents.
    Original languageEnglish
    Title of host publicationWest Africa Built Environment Research (Waber) Conference 19-21 July 2011 Accra, Ghana
    Subtitle of host publicationProceedings of the WABER 2011 conference
    EditorsS Laryea, R Leiringer, W Hughes (W Hughes)
    ISBN (Electronic) 978-0-9566060-1-3
    Publication statusPublished - 2011


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