Real Estate - , Rajasthan, India
INTRODUCTIONFly Ash Bricks are manufactured using Major percentage of fly ash generated from Thermal Power stations. Other raw materials used along with Fly Ash are lime and calcined gypsum.Fly ash is a fine, glass-like powder recovered from coal-fired electric power generation. They consist mostly of silicon dioxide (SiO2), aluminum oxide (Al2O3) and iron oxide (Fe2O3)PRODUCTS AND ITS APPLICATIONFly ash lime bricks are chemically bonded bricks manufactured by utilizing 80- 82% of fly ash, which is a major waste bye-product of pulverized coal fired in Thermal Power Stations, 9-10% of lime, 9-10% of sand and accelerator. The process know-how has been developed by Central Fuel Research Institute. Various special features of fly ash lime bricks are:a) Being machine finished these are uniform in size and shape. b) Consumes 20-25 percent less cement mortar. c) Stronger than Class-I, burnt clay building bricks. d) Outside wall plastering is not essential as these bricks have cement gray color, smooth surface and low water absorption capacity. e) Resistance to salinity. f) Being lighter in weight in comparison to the conventional red bricks, the dead building load and the transportation cost will be less. g) Adoption of this process helps to conserve invaluable top soil of agricultural land. h) By consuming 80-82% fly ash, the cause of environmental pollution and hazards due to disposal is minimized. i) As firing of the bricks is not needed thus pollution due to firing is eliminated.
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