Cement hardening investigation by method of piezoelectric photoacoustics

摘要

Piezoelectric photoacoustics application possibility for concrete hydration stages determination has been analyzed. Cement sample placed on a transparent base was irradiated by laser beam. The acoustic signal from base transformed by piezoelectric converter into electric signal and through the amplifier moved in recorder device. The accent was on research and transient modelling with a pulse laser irradiation. Accent has been made to thermal conductivity measurement of cement during hydration process and its connection with hydration stages.