Experimental Studies on M35 Fly ash Concrete Modified with Zeolite For Thermal Storage Application

Abstract

The purpose of this research is to find suitability of zeolite and fly ash with M35 grade concrete for thermal storage application in service industries. Cement is recognized as a major construction material throughout the world and in terms of its per capita consumption, it is the second most consumed material in the country. Nowadays the cost of cement used in concrete works is keep on increasing becomes unaffordable and cause damages to the Environment. The cement industry is responsible for 5% of overall CO2 emission, because production of one tone of Portland cement emits approximately one tone of CO2 into the atmosphere. Hence Portland cement usage demands an immediate suitable substitute in the construction field. The usage of supplementary materials such as fly ash, zeolite, silica fume, slag cement has been increased in the construction industry due to pozzolanic activities. In this investigation, the properties of concrete modified with zeolite and fly ash in M35 grade is determined. In the first sample cement is replaced by 5% zeolite and 15% fly ash, in the second sample Cement is replaced with 10% zeolite and 30% fly ash. The tests were carried out for assessing the Mechanical strength and Non-destructive properties of concrete for two samples in curing period of 3 days, 7 days and 28 days. Thermo gravimetric analysis (TGA) test also conducted to knew the Thermal Storage Capacity with a curing period of 28 days. Experiment results confirmed that concrete of M35 modified with zeolite 5% and fly ash 15% is suitable for thermal storage application in service industries.