Concrete Products

NOV 2017

Concrete Products covers the issues that attract producers of ready mixed and manufactured concrete focusing on equipment and material technology, market development and management topics.

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40 • November 2017 www.concreteproducts.com FEATURE ENVIRONMENTAL AWARDS EASTERN REGION THIRD PLACE TITAN VIRGINIA READY-MIX LLC LEESBURG READY-MIX CONCRETE PLANT • LEESBURG, VIRGINIA Located in the far reaches of suburban Washington, D.C., the Leesburg plant attained NRMCA Green-Star Certification in 2015, underscoring a Titan Vir- ginia commitment to environmental management systems and minimizing impact on plant surroundings. The property bears trees and grass along the front elevation, and is framed on the south by a two-acre storm water detention pond that supports wildlife and abuts the Washington and Old Dominion Trail. Titan Virginia has created a vegetated berm along the eastern side of the plot and built a 6-ft. screening fence on the opposite end. The plant enclosure, batch house and drivers' break room buildings are well maintained and blend into the natural surroundings. The Leesburg permit enables the discharge of treated process water and storm water from four concrete-lined settling basins, flows from which enter a small fore-bay settling basin connected to the main pond. An oil/water separator adjacent to the mixer truck fuel station further contributes to meeting water quality targets. Titan Virginia recently installed a carbon dioxide treatment system to neutralize process water and eliminate the use of sulfuric acid. CO 2 injection is currently being instituted at 11 other Titan Virginia locations order to increase safety and reduce equipment maintenance while eliminating haz- ardous air emissions/vapors from the use of the acid. A large detention pond separates the Titan Virginia Leesburg ready mixed operation from the Washington and Old Dominion Trail. Titan Virginia has adopted carbon dioxide-based pH adjust- ment for process water in lieu of sulfuric acid dosing. The Leesburg RMC plant's relatively small footprint necessitates conventional returned-concrete handling methods: winrow- ing, stockpiling and transfer to a crushing yard for base ma- terial production; or, production of interlocking key blocks in recently updated forms.

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