Brochure Precast concrete plants | Vollert english

14 MOTUS PRESTRESSED CONCRETE HOLLOW CORE SLAB PRODUCTION HOLLOW CORE SLABS PRODUCED IN CIRCULATION Hollow-core slabs are up to 40% lighter than solid slabs and require less concrete to manufacture. The hollow-core slab is usually laid without sup- port and can be fully loaded immediately. Yet, in the traditional production system, comprising a continuous casting process on long production beds, transverse reinforcements, cross connectors, built- in parts, lifting rings, tensioning steel overhang or concrete recesses can only be incorporated with considerable expenditure. Because of this, pres- tressed hollow-core slabs are often not permitted for construction systems in earthquake zones. 1 The hollow-core generators are inserted by the pipe drawing machine only during the during the concreting process 2 The typical failure problem of slabs during earthquakes is solved by a protruding reinforcement 3 With the MOTUS hollow core slabs, a tension wire projection can be realized Vollert‘s innovative solution takes completely dif- ferent approach in order to rid the undoubted ad- vantages of the prestressed hollow-core slab from the disadvantages it incurs from its traditional ma- nufacturing process. For the first time, prestressed hollow-core slabs are produced on pallets in a cir- culation system. Tensioning and additional rein- forcements, coupling elements and recessed place- holders are vollert motus construction system: Earthquake-resistant hollow-core slabs easily in- stalled on the pallet. Hollow-core creators are only used temporarily during the concreting process. 3 2 1