A Calcium silicate hydrate (CSH) powder containing above 60 wt% xonotlite (remaining being tobermorite, scawtite and calcite) were produced from lime ordinary recycled soda-lime glass via simple hydrothermal synthesis route. The thermogravimetric analysis demonstrated only ~20%weight loss up to 800 °C (at about the transformation temperature of CSHs wollastonite), reaching a plateau in 800–1200...

The ultra-fast synthesis of calcium silicate hydrates was performed in supercritical water that acts as a solvent for mimicking the natural conditions at high pressure and temperature geological process. synthesised xonotlite tobermorite represent perfect Ca−OH-rich Si−OH-rich model nanocrystals investigating effect different chemical environments on dynamics confined water. These results could...