Abstract
Synthetic calcium silicate hydrates were hydrothermally prepared at temperatures between 100 and 200°C. Preparations of tobermorite, xonotlite, hillebrandite, gyrolite, kilchoanite, calciochondrodite, α-dicalcium silicate hydrate and tricalcium silicate hydrate were characterized by X-ray diffraction, scanning electron microscopy and infra-red spectroscopy. The products were examined by high resolution solid state 29Si nuclear magnetic resonance (NMR) spectroscopy. Spectra for tobermorite, xonotlite, hillebrandite and tricalcium silicate hydrate have previously been reported, hut spectra for gyrolite, kilchoanite, calciochondrodite and α-dicalcium silicate hydrate are reported for the first time. NM R spectra reveal information about phase structure suggesting that some of the postulated crystal structures are incorrect. NMR spectroscopy shows promise as a means of identifying constituent phases of the silicate matrix in autoclaved cement pastes.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
