Thermal Influence on Physico?Chemical Properties of Geopolymers Based on Metakaolin and Red Tomato Waste

The high amount of organic and inorganic wastes has increased the attention to new strategies aiming reduce waste disposals. Organic wastes, such as tomato (TWs), are a good source from which red color can be obtained. Among different technologies, geopolymers had been proposed powerful technology able incorporate various kinds wastes. In this paper, pure metakaolin mixture obtained by adding 10% TW-derived (peels) consolidated alkali activation at room temperature, 40 60°C without pigment extraction. Fourier-transform infrared (FTIR) spectra confirmed geopolymerization occurrences. Moreover, materials analyzed for their conductivity pH after sample extractions times. integrity tests assessed resistance synthesized presence tomato-wastes led release yellow hydro-soluble compounds. Finally, weight loss test. Indeed, there no differences 16 30 d.