Concrete mix reference
The reference mix uses 350 kg PCB40 cement (seven 50 kg bags), 0.482 m³ sand, 0.898 m³ stone and 185 liters of water. Actual proportions must be adjusted for aggregate moisture and materials.
| Grade | ≈ PSI | Cement (kg) | Sand (m³) | Stone (m³) | Water (L) |
|---|---|---|---|---|---|
| 150 | 2000 | 288 | 0.505 | 0.913 | 185 |
| 200 | 2500 | 350 | 0.482 | 0.898 | 185 |
| 250 | 3000 | 415 | 0.455 | 0.887 | 185 |
| 300 | 4000 | 450 | 0.438 | 0.877 | 185 |
PSI values are approximate references from the supplied specification. TCVN and ASTM/ACI use different samples, tests and acceptance criteria. Ask your supplier to confirm the required strength.
Rates per 1 m³; multiply by gross volume including waste. Cement bag size: 50 kg.
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