Concrete Products

SEP 2013

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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NEWS SCOPE PRECAST Spancrete Precast plays key role in WisDOT project As part of I-94 North-South Freeway Reconstruction Project, the Wisconsin Department of Transportation (WisDOT) replaced the Rawson Avenue bridge in Oak Creek in mid-June. Spancrete products were used to construct the bridge, which was put into place using a technology brand new to the state—a self-propelled modular transporter, or SPMT. Two superstructure segments were assembled on temporary shoring towers about 800 feet from their fnal positions in the completed structure. The segments were 138-ft. 2-in. wide; one span was 98-ft. 10 1/2-in. long while the other was 86-ft. 10 1/2-in. long. In a process that lasted two hours, the SPMT's massive platforms were positioned underneath the Spancrete Brand precast concrete girders, lifted the roughly 3 million-pound decks and carried them into position over north-south bound traffc lanes, and lowered the pieces until the Spancrete Brand precast pier caps were properly positioned on the bridge's structural supports. The right of way on the east and west sides of I-94 needed only minor grading to accommodate the SPMT equipment. The right of way also provided ample room to keep the segment construction operations at a safe distance away from the active traffc. This enhanced the safety of the construction workers as well as that of the traveling public. Furthermore, this construction method allowed crews to build and install the bridge in about one month's time, versus the normal four to six months a project like this would traditionally take. Rawson Avenue was opened to traffc at the start of summer. PHOTOS: Spancrete 24•September2013

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