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Physiochemical and engineering characteristics of fly ash and its application in various field – a review

Review Paper | February 1, 2015

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Radha Rani, Manish Kumar Jain

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J. Bio. Env. Sci.6( 2), 161-174, February 2015


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Fly ash is generated during the combustion of coal in thermal power plant, large amount. This large amount fly ash creates many problems like huge amount of land required for disposal and toxicity associated with heavy metal leached to groundwater. This paper focussed the physiochemical and engineering characteristics of fly ash for their valuable application. Fly ash is the inorganic part of coal containing glassy, amorphous structure and spherical shape. This is containing SiO2, Al2O3, and Fe2O3 in higher amount. Major crystalline phases present in fly ash are quartz (SiO2) and mullite. According to them fly ash is an excellent potential raw material for the manufacture of construction material like cement, light weight building block, and concrete. With the help of pH, electrical conductivity and presence of various trace elements, fly ash is also suitable for agriculture.


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Physiochemical and engineering characteristics of fly ash and its application in various field – a review

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