Is there any use for coal ash?



  1. 0 Votes

    There are several uses for coal ash, some being safer and more productive than others. The three main types of coal ash are fly ash, boiler slag, and bottom ash. The use of fly ash in concrete mix as a substitute for portland cement is actually encouraged by the EPA. Boiler slag is often used for sandblasting and shingle grit, while bottom ash can be used as a gravel substitute. However, some caution against the use of bottom ash in this way due to leaching risks.

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