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Languishing 2009-13 coal ash recycling rates reflect regulatory uncertainty

According to American Coal Ash Association’s (ACAA) “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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Fly ash marketers, users spared ‘hazardous material’ stigma in EPA rule

After five and a half years of proposals, reworking and review of 450,000-plus comments, the Environmental Protection Agency issued a final rule on coal combustion residuals (CCR) from utility power plants, strengthening management guidelines for impoundment- or landfill-bound material while supporting responsible recycling practices best exemplified in ASTM C618-grade fly ash processing and marketing.

 

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GPS data boosts FHWA-backed pavement measurement technology

GOVAFF-GPS-150A Federal Highway Administration and Long-Term Pavement Performance (LTPP) product developed by Austin, Texas, engineering and design firm Transtec Group, ProVAL software has been upgraded to offer highway agencies and contractors map-based features alongside pavement profile characteristics.

 

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Economists quantify federal transportation dollars’ downstream multiplier effect

Federal highway and transit investment programs impart economic benefits across the U.S. economy, according to an IHS Inc. study commissioned by the American Road & Transportation Builders- and Associated General Contractors-led Transportation Construction Coalition.

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