Research Progress on Micro/Nano-structure and Cryogenic Stability of Calcium-Silicate-Hydrate
The stability of the micro/nano-structure of calcium-silicate-hydrate(C-S-H),as the main hydration product of ordinary silicate cement,significantly impacts the strength and durability of cement-based materials.The research progress of C-S-H molecular and colloidal structures in recent decades was reviewed,and the related research progress of micro/nano-structural stability,nano-mechanical property stability,and enhancement strategies of C-S-H under cryogenic environment were further outlined.Several critical issues in the current research of C-S-H structure under cryogenic environments were discussed,and an outlook on further research in this domain was proposed.