AN EXPERIMENTAL INVESTIGATION ON BEHAVIOUR OF GEO-POLYMER CONCRETE SLAB WITH FLY-ASH & GGBS UNDER AMBIENT CURING

Praveen Mathapati, Ramesh Babu, M.U.Aswath

Abstract: GeoPolymer Concrete (GPC) is an eco-friendly binding alternative material for an Ordinary Portland Concrete (OPC). Geopolymer concrete is produced by mixing the GGBS, flyash, alkaline activator solution, fine aggregate, coarse aggregate. Alkaline solution is composed of Sodium Silicate (Na2Sio3) and Sodium hydroxide (NaOH). This research work deals with an experimental investigation on behavior of geopolymer concrete slab with flyash & GGBS under ambient curing. In this project work the behavior of the slab with normal conventional concrete and geopolymer concrete slabs has been studied in detail. The overall dimensions of the slabs are 1000mm X 1000mm X 60mm and reinforced with the 8mm HYSD bars at 230mm c/c are casted. For the geopolymer concrete slabs of 25% of GGBS 75% of flyash is used as a binding material for OPC. The 16M molarity of the NaOH solution used. The following tests conducted on GPC & M-20 concrete Compressive Strength, Split Tensile Strength, Flexural Strength. and The following analysis is conducted on the slab Cracks developed due to loading, Shear failure, Failure due to ultimate load, Cracks pattern due to ultimate load, Deflection due to loading, Load v/s deflection graph.

Keywords: GeoPolymer, Molarity, Sodium hydroxide, Sodium Silicate, Flyash, GGBS.

DOI: https://doi.org/10.15623/ijret.2016.0507027