EPA confirms fly ash’s concrete suitability, benign chemical profile
- Published: Monday, 10 February 2014 12:17
- Written by Concrete News
Sources: U.S. Environmental Protection Agency; American Coal Ash Association, Farmington Hills, Mich.; CP staff
Five years after proposing potentially onerous regulations for coal combustion residuals (CCR) management and disposal—triggering an uproar across the concrete industry regarding ASTM C618-grade fly ash marketability—EPA has released an evaluation of recycled CCR almost certain to put lingering concerns to rest.