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20 ft. X 28 ft. slabs - standard 5-1/2" thick - 6-point pick

Traditional method of pouring wall panels on the floor slab of the building - erecting and bracing panels followed by structural steel erection - ACCELERATED METHOD - pour wall panels on exterior casting beds concurrently with construction of spread footings and structural steel - erect wall panels from the outside - "walking" panels around to position.  Reverse erection requires the use of a heavy vehicle with a winch to pull the panels in against the steel.  Precise leveling of the setting surface is accomplished via steel pads set in grout.  With only a 1 inch gap between panels, leveling plates and their accuracy are essential.  The gains in early completion are worth the extra effort.  A hand-picked multi-trade erection crew and logistics training yields high proficiency and safe, timely erection of panels.  Depending on the terrain, surface conditions and weather, 4 to 10 panels can be erected per day per crew.  All travel is done on temp roads not on the floor slab. Erection production is less than on-slab travel method, however, time savings of concurrent structural steel and panel-casting far out-weighs and losses in erection time.  Erection is effectively removed from the critical path by concurrent procedures coupled with timely access to building by trades for accelerated start on mechanical, electrical.  Benefit of "under-cover" flatwork when winter conditions exist.

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