The project aims to develop innovative ceramic tiles containing over 70 wt% of recycled materials from urban and industrial wastes. The specific objectives are related to:
– contribution to sustainable waste management by recovery of the amount of soda lime glass cullet waste that today is not re-introduced in glassware (about 30% of the total glass waste);
– reduction of the use of natural resources thanks to: the use of soda lime glass, coming from urban collection and the reuse of green scrap tiles, generated during the industrial process;
– improvement of the environmental performances of the ceramic tiles sector by reducing CO2 emissions, energy consumption and methane use.
The combination of these different wastes enables the production of innovative ceramic tiles with similar or improved mechanical properties respect to the traditional ones. The productive cycle is similar apart two main innovation aspects concerning the body mix preparation (over 70wt% of recycled wastes in substitution of natural raw materials) and the firing cycle (maximum sintering temperature reduced.