Piastre prefabbricate in conglomerato cementizio leggero fibrorinforzato

The results of an experimental campaign performed on plates in three point bending are described and analyzed in the present paper. The aim is to tailor, through tests on full-scale structures, a new lightweight cement-based composite having the same mechanical performances of reinforced concrete, but without the presence of steel rebars. Accordingly, with respect to a traditional plain concrete, aggregates made with expanded clay and polymeric fibers have been used, respectively, to reduce the weight and increase the ductility. Moreover, the minimum amount of fibers is defined by means of the ductility criteria already adopted for the minimum reinforcement ratio in reinforced concrete beams. The proposed tailor-made concrete can be used to retrofit one way slabs of existing constructions.