Research Article
Experimental Study on Lead-Smelting Slag as Paste Filling Cementing Material
Table 1
Physical properties of the filling material.
| | Item | Special gravity | Bulk density (t/m3) | Porosity (%) | Natural repose angle (°) |
| | Tailings | 2.997 | 1.701 | 43.2 | 41.0 | | PC32.5 cement | 3.011 | 1.735 | 42.3 | 39.2 | | Cement clinker | 3.312 | 1.893 | 42.8 | 39.0 | | Water quenching slag | 2.693 | 1.678 | 37.7 | 40.8 | | Lead-smelting slag | 2.898 | 1.786 | 38.4 | 38.5 |
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