Investigation of strength and impact charecteristics of blended Self cured concrete

Abstract

Concrete is widely accepted as a durable construction material and being used across the globe for Civil engineering construction. Production of concrete is proved to be unsustainable owing to high amount of CO2 release and solutions being promoted to make it sustainable, also concrete strength and durability enhancement needed to be envisaged due to increased demand. Several attempts were made to produce concrete using multiple admixtures, in this research work we had made an attempt to develop a Geopolymer based concrete ( cementless) by incorporating Ground granulated Blast Furnace slag and fly ash with alkaline binder solution prepared in different molarities ( 10M, 12M, 14M). The mixture is casted and tested for strength and impact resistance after curing for 28 days in sunlight (non-thermal curing). Promising results were obtained in this study with 11M and 14M solutions based geopolymer concrete showing good strength results concerned with compressive and impact strength. Specifically, designed impact strength testing equipment is used in this study which is a novel work done and a cylindrical specimen of 100 mm diameter and 50 mm thickness is used to study impact resistance of concrete.