Research Article
Mechanical and Electroconductivity Properties of Graphite Tailings Concrete
Table 4
Properties of sand, graphite tailings, and stone.
| | Physical properties | Fine aggregate | Fine aggregate | Coarse aggregate |
| | Type | Natural stand | Graphite tailings | Crushed stone | | Size (mm) | 0.16–5 | 0.2–0.4 | 5–40.5 | | Apparent density (kg/m3) | 2,620 | 2,855 | 2,650 | | Bulk density (kg/m3) | 1,630 | 1,540 | 1,550 | | 24-hour water absorption (%) | 16.80 | 37.10 | 2.17 | | Fineness modulus | 2.49 | 0.90 | — | | pH value | 7.00 | 10.00 | 7.30 |
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