Abstract
The use of High Performance Fibre Reinforced Cementitious Composites (HPFRCC) allows the designer to reduce the dead weight of roofing keeping concrete covering structures still more competitive in relation to steel structures in terms of costs, thermal and acoustic insulation and fire resistance. Thin slabs can be used as tertiary elements in roof decks beside the spandrel beams and the simply supported prestressed precast roof elements. Two metres wide elements, simply supported along a 2.5 m span were devised as a possible application in this paper: the high performances are mainly used for the bending behavior along the 2.5 m span and in order to drastically simplify the detailing of the support regions. The idea is that of coupling textile and Ultra High Performance Fibre Reinforced Concrete (UHPFRC) technology, by means of an interposed polystyrene layer.
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