FLYASH AS PARTIAL REPLACEMENT OF PORTLAND POZZOLANA CEMENT IN CONCRETE: AN EXPERIMENTAL INVESTIGATION

Fly Ash is considered as an industrial waste in India. It is an inert material, which can be used in various replacements in construction industry, especially in concrete. It is reported that there is still a huge proportion of fly ash produced in India (90%) is still considered as a waste product produced from thermal power plants and has got no positive utilization. The Experiments show that Fly Ash increases the workability and green density up to some extent; it also increases the compressive strength initially but reduces later on mixing larger proportions. The properties of Fly Ash and PPC used in the experiment are also discussed and checked by various experiments. The experiments are conducted to test various concrete properties as Compressive Strength, Workability and Green Density. The experiments are carried out for PPC replaced with fly ash for various proportions of 5.00%, 7.50%, 10.00%, 12.50% and 15.00% for preparation of concrete cubes.