Concrete Products

AUG 2015

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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www.concreteproducts.com August 2015 • 37 FEATURE THE SEFA GROUP The newest STAR facility and load-out occupy 6.5 acres of Santee Cooper Power's 408-acre Winyah Generating Station, the principal power source for nearby Myrtle Beach, S.C. The reactor has direct feed of dry ash from the adjacent generating station. Dewatering of pond ash (top right), fed separately or concurrently with dry ash, begins in sheltered storage and continues in pre-heating chambers (right, middle) that draw high temperature air from the reactor, which runs on raw feed carbon combustion. Ash particles meet air and water streams at ring headers placed along the reactor vessel. STAR technology can process bituminous and sub-bituminous coal fy ashes, Class F and Class C, respectively, and run various blends to meet concrete customers' specifc performance requirements. PHOTOS: Concrete Products The Staged Turbulent Air Reactor has its own stack with integral continual emission monitoring system to ensure permit compli- ance. The SEFA Group builds each STAR operation as a stand-alone facility that can operate independently of the host utility.

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