Published Paper Details:

Concrete is till now most fashionable material in construction industries and one of the most environmentally harmful materials. Due to environmental concerns of cement industry, there arises a strong need to make use of alternate technology which is sustainable. Geopolymer is an alternative material which can act as a binder by replacing cement. In this experimental work have analysis the strength and durability properties of fly ash and ground granulated blast furnace slag (GGBS) based geopolymer concrete and also the cost comparison with the normal concrete. The concentration of sodium hydroxide is 13 molarity(M) solutions kept a constant to prepare the mix and alkaline liquid to binder ratio as 0.40, but changing ratio of sodium hydroxide (NaOH)to Sodium silicate (Na2Sio3) 1.50, 2.00 and 2.50. The cube compressive strength was calculated for different alkaline activator solution for different mix Id. i.e. F100G0, F90G10, F80G20, F70G30 and F60G40, (Where F and G are, respectively, Fly Ash and GGBS and the numerical value indicates the percentage of replacement of fly ash by GGBS). The cube specimens are taken of size 100 mm x 100 mm x 100 mm. ambient curing of concrete at room temperature was adopted. In total 45 cubes were cast for different mix Id and the cube specimens are tested for their compressive strength at age of 7 and 28 days respectively. The strength of geopolymer concrete was increased with increase in percentage of GGBS in a mix. It was observed that the mix Id F60G40 gave maximum compressive strength of 66 MPa was observed for ratio of NaOH to Na2Sio3 2.50. Thus the geopolymer concrete have a relatively higher strength and better durability.