1. Effect of modified nano-silica on the performance of cement mortar.
- Author
-
LI Changcheng, YANG Yong, RAN Qianping, SHU Xin, and CHEN Lei
- Subjects
SILANE coupling agents ,MORTAR ,SILICA fume ,CEMENT - Abstract
Nano-silica has great potential in cement-based composites, but the agglomeration of nano particles in cement-based materials limits its development. A series of modified nano-silica were synthesized by grafting isobutylene alcohol poly-oxyethylene ether (TPEG) on to the surface of nano silica modified by silane coupling agent. The results show that the nano-silica modified by TPEG has better dispersibility and stability in an alkaline environment. In addition, compared with nano-silica, modified silica can make the cement hydration process controllable and improve the physical and mechanical properties of the mortar. [ABSTRACT FROM AUTHOR]
- Published
- 2022