Abstract :
Two kinds of system have been considered in this study. 100% replacement of cement by flyash and 100% replacement of river sand by manufactured sand. The workability of Self Compacting Geo polymer Concrete (SCGC) for various molarities and hardened properties of SCGC were investigated in this paper. The work focused on the concrete mixes with a fixed water-to-geopolymer solid (W/Gs) ratio of 0.33 by mass and a constant total binder content of 450 kg/m3. The workability related fresh properties for molarity of 8M, 10M, 12M, and 14M of SCGC were assessed through slump flow,T50cm Slump flow, V-funnel, L-box and U-Box test methods. According to EFNARC (European Federation of National Associations Representing for Concrete) guidelines the mix proportions are arrived. Based on the results taken from workability tests the optimized molarity is chosen for SCGC. The hardened properties of concrete are conducted by replacing flyash with silica fume and GGBFS.
Keyword :
Fly ash, Manufactured sand, Self Compacting Geopolymer Concrete, Alkaline Liquids, Silica fume, GGBFS