Raman spectroscopy potentiality in the study of geopolymers reaction degree

Alkali-activated materials (AAMs) and “geopolymers” are inorganic polymeric obtained by mixing of solid aluminosilicate precursors with an alkaline solution (generally, KOH or NaOH Na2SiO3 mixed in various ratios). This class has emerged as a greener alternative to traditional concrete, for large-scale well niche applications such conservation restoration built heritage. In this work we apply Raman spectroscopy both (metakaolin, pumice, volcanic ash, soils, clayey sediments, ceramic waste) the respective AAMs. field vibrational spectroscopy, is much less employed literature respect Fourier transform infrared (FTIR) have insights into alkali activation process from molecular point view. The aim paper investigate potentiality approach comparison raw analyses during first hours geopolymerization were also carried out on sediments waste-based products. results, differentiated according precursors, exhibit spectra relative crystalline amorphous phases that can give indication about newly formed gel.