Supply dynamics in key regional markets, paralleling coal-fueled power plant closures, spurred an 11 percent year over year decline in fly ash consumption in concrete, according to the American Coal Ash Association’s (ACAA) just-released “Production and Use Survey” for 2018. Concrete-grade ash accounted for 12.5 million of the 59.4 million tons of coal combustion products (CCP) beneficially used last year, the latter figure down 8 percent or 9.1 million tons from the 2017 ACAA survey. Use of all grades of CCP in cement production declined 26 percent in 2018, to 6.4 million tons.
Read MoreShifting production, use patterns temper fly ash, CCP recycling rates
