| 摘要 |
Pulverulent composition comprises inorganic binder, and glass accelerator and activator including 20 wt.% of silica, 10-80 wt.% of alkali oxide (I) and 0-30 wt.% of alkaline earth oxide consisting of calcium oxide, magnesium oxide strontium oxide or barium oxide. Pulverulent composition comprises inorganic binder, and glass accelerator and activator including 20 wt.% of silica, 10-80 wt.% of alkali oxide of formula (R2O) (I) and 0-30 wt.% of alkaline earth oxide consisting of calcium oxide, magnesium oxide strontium oxide or barium oxide. R2 : Na, Li or K. |
