Concrete Products

MAR 2018

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 March 2018 • 51 COVER STORY TEXAS MEGA SLAB INTO THE FIRE Huddled inside the GM facility on Saturday night, the first team gathered to take one last safety moment and a stretch before work started. Crews then filed into the jobsite: A bare subgrade in a hangar lined with steel columns and illuminated by overhead LED lights. Laborers mobilized on the opposite side of the entrance, putting on kneepads and adjusting their hardhats. On the other side of the building was the familiar din of mixer trucks, dispatched from one of four plants of Redi-Mix Concrete, the Dallas-Ft. Worth business of U.S. Concrete Inc. Halo light hard hats raised their traffic batons and pointed the first trucks to the other side. As they began to discharge loads of stiff mixes bearing 23 lbs. of steel fiber/yard, the sheer size of the project took shape. Continued on page 55 One of four conveyors dosing Bekaert steel fibers at 23 lbs./yd. Once fibers were transferred, engineers called for a five-minute mixing cycle—netting stiff, 6-in. slump mixes that challenged placing crews. PHOTOS: Jon Humphrey, courtesy of Barton Malow

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