Report tracks $100 billion road & bridge cost spike in fly ash absence

The cloud of proposed Environmental Protection Agency regulations governing the handling and disposal of coal combustion residuals (CCR), including construction-grade fly ash, prompted an American Road & Transportation Builders Association Transportation Development Foundation (ARTBA-TDF) report to forecast potential economic impacts on the subtraction of ASTM C 618 product from the transportation infrastructure supply chain.

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Ennstone asset closing opens Virginia to Aggregate Industries

Source: CP Staff; Aggregate Industries US, Rockville, Md.

In conjunction with the liquidation of a U.K. operator, Ennstone Plc, Aggregate Industries US, a member of the Holcim Group, closed the asset purchase agreement it entered into with Falmouth, Va.-based Ennstone, Inc., a construction materials company with ready mixed, sand & gravel and limestone operations serving commercial, residential and industrial projects in the state.

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40-year old precast augments Transamerica Pyramid’s LEED Platinum ascent

Sources: CP staff; Transamerica Pyramid Properties LLC and BuildingWise LLC, San Francisco; U.S. Green Building Council, Washington, D.C.

By Don Marsh

Exposed, white quartz-aggregate cladding was cited with a “cool roof” effect as Transamerica Pyramid owners pursued (Leadership in Energy & Environmental Design-Existing Building) LEED-EB Platinum certification for their San Francisco landmark. Completed in 1972, the 853-ft. tower is enclosed with 3,920 precast pieces totaling 360,000 sq. ft. of surface.

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