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TeachMeFinance.com - explain Fly ash Fly ash The term 'Fly ash' as it applies to the area of energy can be defined as ' Particulate matter mainly from coal ash in which the particle diameter is less than 1 x 104 meter. This ash is removed from the flue gas using flue gas particulate collectors such as fabric filters and electrostatic precipitators'.The term 'Fly ash' as it applies to the area of reclamation can be defined as ' A by-product of coal-fired powerplants which reacts with water and the free lime in cement while generating only half the heat of an equal amount of cement'.
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