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14 Molar Concentrations of Alkali-Activated Geopolymer Concrete

Oyebisi, S.O and Akinmusuru, J. O. and Ede, A. N. and Ofuyatan, Olatokunbo M. and Mark, Grace and Oluwafemi, John (2018) 14 Molar Concentrations of Alkali-Activated Geopolymer Concrete. In: IOP Conf. Series: Materials Science and Engineerin.

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The increase in construction activities due to economic and population growth has led to the higher demand and utilization of cement. But cement production leads to the pollution of the environment. Consequently, this study examines the utilization of both ground granulated blast furnace slag (GGBFS) and corncob ash (CCA) as source materials in the production of geopolymer concrete (GPC). GGBFS was replaced by CCA in 0%, 20%, 40%, 60%, 80% and 100% respectively using Grade 30 (M30) mix design proportion. Alkaline liquids were prepared to obtain 14 molar concentrations and used to activate the source materials. Slump, density and compressive strength of GPC were determined and compared with Portland cement concrete (PCC). The research findings indicate that GPC has higher compressive strength than PCC. Based on the relationship between the compressive strength and the density, a model equation is established. And the equation is used to predict the compressive strength of GPC with respect to the density. Reprocessing of CCA and GBFS as emerging low-carbon footprints appears to be a feasible solution to the problem of environmental pollution

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: geopolymer concrete; corncob ash, ground granulated blast furnace slag; regression model; alkaline liquids; compressive strength
Subjects: T Technology > T Technology (General)
T Technology > TA Engineering (General). Civil engineering (General)
Divisions: Faculty of Engineering, Science and Mathematics > School of Civil Engineering and the Environment
Depositing User: Mrs Hannah Akinwumi
Date Deposited: 28 Sep 2018 11:22
Last Modified: 28 Sep 2018 11:22

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