Fly ash is a coal combustion product, one of the byproducts created when coal is burned, and makes up about 60 percent of all coal combustion waste. It is captured after combustion by filters, electrostatic precipitators and other air pollution control devices, and is commonly reused as a substitute for Portland cement or as an ingredient in cement, and in building materials such as grout and concrete products. This description is adapted from Wikipedia contributors under CC BY-SA 4.0; changes were made. https://creativecommons.org/licenses/by-sa/4.0/
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1. Wikipedia, Fly ash
Introduction, GICS sector classification
Coal combustion products (CCPs), also called coal combustion wastes (CCWs) or coal combustion residuals (CCRs), are by-products of burning coal.
Introduction, offering kind classification
Coal combustion products (CCPs), also called coal combustion wastes (CCWs) or coal combustion residuals (CCRs), are by-products of burning coal.
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