STUDY ON THE BEHAVIOUR OF FLY ASH BASED GEOPOLYMER CONCRETE

Authors

Mohd Bilal Farooqui, M.Tech.(Civil Engineering) Scholar, Rajneesh Kumar, Assistant Professor
Civil Engineering department, Lucknow Institute of Technology Lucknow, India.

Abstract

“Geopolymer is new world for development concrete work ,in which cement is totally replaced by pozzolonic materials like fly ash and activated by highly alkaline solutions to act as a binder in the concrete mix”.Mixture plan is planned created on the amount n accuracy of fly ash, water measure, fine sorting, n overall end-to-end ratio. Sodium silicate explanation with Na 2 O = 16.37%, SiO2 = 34.35%, H 2 O = 49.28% n sodium hydroxide solution which has a attention of 13M, 10M, n 15M during the test. H 2 O / geopolymer ratio 0.40, alkali / volatile ash ratio 0.35 n the ratio among sodium silicate n sodium hydroxide is equal to 2 in mass, made on 150 mm cubes, measuring the pressure strength n working capacity of the concrete. The oven heating is sustained at 60 ° C for 24 hours n tried after 7 days of boiling. Global warming is a threatening issue now a days, cement industry also contributes to CO 2 emissions. Construction materials to lessen the carbon emission. Concrete formed by organic and inorganic materials using alkaline solution , it also consumes waste materials product and naturals resources for the production of geopolymer reinforce in order to happen global frame changes. The result of ash properties, fly ash content n FBGC-based cement mixture was examined on the adhesion strength among FBGC n steel support. Australian ash was used from five dissimilar causes (Eraring, Mt-Piper, Bayswater, Gladstonen Collie) in the production of FBGC. 45 FBGC mixtures with dissimilar content of fly ash (300, 400 n 500 kg / m 3 ) were prepared with dissimilar percentages of alkali activator. The use of fly ash n in dissimilar quantities showed substantial alterations in bond power among FBGC n steel support.