Coal ash recycling at record rate, lower concrete market metric aside

The American Coal Ash Association Production and Use Survey, released late last month, pegs 2016 Class F and Class C fly ash consumption in concrete at 14.4 million tons, down 8 percent from the prior year’s record 15.7 million tons. ACAA attributes the dip to regional supply shortages that resulted from power plant shutdowns and generating stations’ changing fuel profiles. Demand for fly ash remained strong across all concrete markets last year, the group affirms, and utilization likely would have been higher absent logistical disruptions.

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Concrete end uses help propel coal ash recycling to record level

“We are pleased to report that 52 percent of coal combustion products were beneficially used in 2015—up from the previous year’s record of 48 percent. For the first time, we are using more of these valuable resources than we are throwing away,” reports American Coal Ash Association Executive Director Tom Adams, taking stock of the central metric in the group’s latest “Production and Use Survey.”

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Languishing 2009-13 coal ash recycling rates reflect regulatory uncertainty

Sources: American Coal Ash Association (ACAA), Farmington Hills, Mich.; CP staff

According to ACAA’s “Production and Use Survey,” 51.4 million tons of coal combustion products (CCP) were beneficially used in 2013 —down from 51.9 million tons in 2012 and well below the 2008 peak of 60.6 million tons. In the closely watched category of fly ash consumed in concrete mixes, utilization increased only slightly to 12.3 million tons, up by 577,705 tons over 2012, but still below 12.6 million tons in 2008.

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Regulatory uncertainty drives coal ash recycling to fourth straight year of decline

Coal ash recycling in the U.S. was off 4.7 million tons in 2012 against the prior year, according to the American Coal Ash Association (ACAA) “Production and Use Survey” released last month. Ash utilization has stalled after nearly a decade of growth of a practice that conserves energy and natural resources, reduces greenhouse gas emissions, and safely keeps ash out of landfills and disposal ponds.

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