AN INVESTIGATION ON FLY ASH CONCRETEJ. SAHAYA RUBENAbstract Approximately 73% of total power production capability in India is from thermal in which coal based production contributes 85%. Most of the thermal power stations and numerous captive power plants used bituminous and sub-bituminous coal and manufactured large quantities of fly ash as a residue and these are disposed of on-site impoundments behind engineered earth dam. One of the best applications of fly ash is using it as a construction material as embankments, fills and others. The efforts have been made to reduce CO2 emissions in environment by all possible ways, but cement has not been found a suitable replacement for it till date. Fly ash Concrete is an effort in reducing cement content of construction. The paper aims at discussing the use of fly ash concrete in construction as a solution to address two environmental problems - one, disposal of huge amounts of fly ash, by production of thermal power plants, causing environmental degradation through large areas of landfills and two, high percentage of carbon dioxide emissions in atmosphere from cement industry.
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