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Vulcan Materials tests carbon dioxide-dosed ready mixed

Sources: CarbonCure Technologies, Halifax, Nova Scotia; CP staff

Vulcan Materials is the first ready mixed producer to license technology in which industrial process-sourced carbon dioxide is injected into fresh concrete mixes, thereby offsetting water requirements; forming additional limestone in the matrix; and, sequestering the greenhouse gas in a hardened slab or structure.

The producer is deploying CarbonCure technology at its Springfield, Va., plant—strategic to the northern Virginia and Washington, D.C. market, where federal agencies, developers and the design community drive project specifications friendly to reduced-carbon building materials, methods and products. Vulcan Mideast Division President Diggs Bishop credits the CO2 recycling process with improving concrete sustainability and strength, and calls it “the future of the industry.”

Licensing for ready mixed production extends a presence CarbonCure has realized in licensing and equipment installations involving U.S. and Canadian concrete masonry producers Basalite Concrete Products, Ernst Maier, Mutual Materials, Oldcastle Architectural (Anchor, Northfield, Permacon) and Shaw Brick.