Research Article
Optimization and Hydration Mechanism of Composite Cementing Material for Paste Filling in Coal Mines
Table 5
Formulations of composite cementing material.
| | Test number | Proportioning (%) | | Portland cement | Sulphoaluminate cement | Gypsum |
| | D01 | 94.9 | 3.7 | 1.4 | | D02 | 91.2 | 3.8 | 5.0 | | D03 | 88.6 | 1.7 | 9.7 | | D04 | 86.6 | 11.9 | 1.5 | | D05 | 84.8 | 9.0 | 6.2 | | D06 | 83.2 | 5.2 | 11.6 | | D07 | 81.7 | 0.4 | 17.9 | | D08 | 80.3 | 14.9 | 4.8 | | D09 | 79.1 | 9.8 | 11.1 | | D10 | 77.9 | 4.0 | 18.1 | | D11 | 75.6 | 15.3 | 9.1 | | D12 | 74.6 | 8.6 | 16.8 | | D13 | 71.7 | 14.1 | 14.2 | | D14 | 68.3 | 11.8 | 19.9 | | D15 | 65.9 | 18.1 | 16.0 |
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