Research Article
Experimental Study and Application of Inorganic Solidified Foam Filling Material for Coal Mines
Table 4
Physical parameters of sulphoaluminate cement.
| Apparent density (kg/m3) | Initial setting time (min) | Final setting time (min) | Compressive strength (MPa) | 1 d | 28 d |
| 3.21 | 10 | 30 | 37.5 | 51 |
|
|