Source: Charah Solutions Inc., Louisville, Ky. Charah Solutions is preparing to kick off one of the largest contracts in its 35-year history: Excavation of approximately 4.3 million yd.3 of coal combustion residuals impounded across multiple basins of an established Southeast utility account. With an anticipated Q3 2022-2031 horizon, it also stands to be one of the company’s longest projects in duration.
Read MoreDay: July 28, 2022
Slab, wall material acoustic performance survey proves concrete soundness
Sources: RMC Research & Education Foundation, National Ready Mixed Concrete Association, Alexandria, Va.; CP staff A new report, “Compilation of Acoustics Information for Concrete Construction and Other Materials,” assesses sound transmission class (STC), impact insulation class (IIC) and other ASTM standard-measured metrics driving wall and floor-ceiling assembly acoustic performance. The RMC Research & Education Foundation and National Ready Mixed Concrete…
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