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IMPLEMENTATION OF TREATED OIL SANDS WASTE IN CONTINUOUS FLIGHT AUGER PILES CONCRETE MIXTURES
Session: Mining Geotechnique IV / Géotechnique minière IV
Mahmoud Kassem, Department of Civil and Environmental Engineering – University of Western, London, Ontario, Canada (Canada)
Ahmed Soliman, Department of Civil and Environmental Engineering – University of Western, London, Ontario, Canada (on Leave of Ain Shams University, Cairo, Egypt) (Canada)
Hesham El Naggar, Department of Civil and Environmental Engineering – University of Western, London, Ontario, Canada (Canada)
Concrete is the major constituent of continuous flight auger (CFA) piles, hence, understanding the concrete mixture behaviour and optimizing its design are essential. A laboratory study was undertaken to evaluate the fresh and hardened properties of CFA concrete mixtures incorporating treated oil sands waste (TCCW). Variation of hardened properties with curing time has been quantified. Results show that TCCW addition had an insignificant effect on the concrete flowability. Strength gaining rates for concrete mixtures incorporating TCCW were near that of the control mixture. Results suggest that TCCW can be used in CFA piles which will lead to both economic and environmental benefits.
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