Stress strain experimental analysis of geopolymer concrete

Abstract

Abstract The mechanical properties and Modulus of Elasticity (MoE) of fly ash and Ground Granulated Blast Furnace Slag (GGBS) based Geopolymer Concrete (GPC) are presented in this paper. It has been used the eight molarity concentrations of Sodium Hydroxide and alkaline liquid ratio with the ratio of 2.50. We have analyzed the stress-strain characteristics and flexural, compressive and split tensile strengths for the GPC20, GPC40 and GPC60 grades. The experimental analysis was performed on the 150x150x150mm cubes and 100x100x500mm prisms and 150x300mm cylindrical GPC specimens. Testing has been performed and noted that the superior mechanical characteristics and evaluated stress-strain relationships of flyash and GGBS based GPCs in ambient curing environment. The MoE has been varied due to the increase in GPC grade. Finally, we have proposed the equation for determining the MoE which depends on compressive strengths GPC.