STUDY OF COMPRESSIVE STRENGTH OF BLENDED FLY ASH WITH GROUND GRANULATED BLAST FURNACE SLAG AND QUARTZ POWDER BASED GEOPOLYMER MORTAR AND BLOCKS

This study investigates the use of industrial wastes like Fly Ash (FA), Ground Granulated Blast-furnace Slag (GGBS), and Quartz Powder (QP) as alternatives to cement, Copper (CS) fine aggregate in Geopolymer blocks (GPB). The mix ratio 1:3 one part binder 3 parts copper slag, 8M, 10M NaOH, Na2SiO3 solutions are used Alkaline Activator Solution (AAS). Two types GPB1 (Mortar Blocks) GPB2 (Aerated produced. binders FA, GGBS, QP, CS tested find fineness, specific gravity, absorption capacity. A suitable percentage added together dry-mixed a mortar mixing machine for each separately. fresh is placed moulds, compacted an oven at 60°C-70°C 24 hours. compressive strength mixes found performing compression testing, maximum 82.50 MPa achieved when 100% GGBS 10.54MPa 70% FA 30% QP used. Aerated block M1 shows better 12.66 curing after hours, 10.95MPa ambient 7 days. increase Mortar1 increases strength, Mortar2 but it very low compared Mortar1.