Pannelli sandwich in calcestruzzo: tradizione, innovazione, sperimentazione

In the period of Global crisis, construction industry is one of sectors that have suffered the most. It is evident that new ideas, new approach in design of structures and the use of green construction materials together with environmental awareness will result with revival of construction market and economic recovery. It therefore appears necessary to favor those construction processes characterized by the rationalization of construction times, by a moderate construction cost obtained also thanks to the use of CDW, by the production of factory elements with great constructive flexibility, capable of satisfying, in terms of sustainability and energy efficiency, regulatory requirements. This paper, the continuum of a research started in 2018, analyzes the possibility of exploiting the thermal insulation characteristics of some precast concrete sandwich panels (PCSP, Precast Concrete Sandwich Panels) in low-rise buildings, highlighting the peculiarities and technical limitations. constructive. In particular the paper presents research on recycled aggregate concrete, particularly on application of recycled concrete and brick aggregates as replacement of natural aggregates in concrete mixtures. Intensive research activities that have been carried out in recycling and reusing of CDW, have resulted with development of an energy and resource efficient product ECOSANDWICH® - an innovative ventilated prefabricated concrete facade wall panel with integrated Ecose® mineral wool insulation. The technical solutions that allow the use of sandwich panels within the scope of the Legislative Decree are therefore analyzed. 76/2020, known as the Simplification Decree, which extends incentives for energy efficiency and seismic improvement to demolition and reconstruction interventions