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- W2893034156 abstract "Geopolymer concrete is an innovative alkali-activated concrete that has been gaining applications due to its higher strength and excellent durability. In this paper,utilization of ground granulated blast furnace slag (GGBFS) and corncob ash (CCA) is investigated as source materials. The source materials were activated with the solutions of sodium hydroxide (NaOH) and sodium silicate (Na2SiO3) for the production of geopolymer concrete (GPC). Sodium hydroxide was prepared in 12 Molar, 14 Molar, and 16 Molar concentrations while grade 30 (M30) concrete wasused as mix design proportion. Ground granulated blast furnace slag was substituted by CCA in 20%, 40%, 60%, 80% and 100%, while compressive strength, flexuralstrength, and split tensile strength were tested and cured in ambient conditions, and compared with Portland cement concrete (PCC). The findings reveal that 14 molarexhibits the best concentration for the activation of GGBFS-CCA based GPC having maximum compressive strength at 100% GGBFS with 45.57 MPa while the optimum replacement level shows 60% GGBFS and 40% CCA with 38.40 MPa compared with35.12 MPa for PCC at 28 days curing. Thus, it is inferred that GPC has better strength when compared with PCC, and ground granulated blast furnace slag and corncob ash prove to be innovative materials in the production of GPC" @default.
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- W2893034156 date "2018-08-01" @default.
- W2893034156 modified "2023-09-26" @default.
- W2893034156 title "INFLUENCE OF ALKALI CONCENTRATIONS ON THE MECHANICAL PROPERTIES OF GEOPOLYMER CONCRETE" @default.
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