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Technical parameters of CEM I 52.5 HSR Portland cement (on the basis of the manufacturer’s information [46]).
| Parameters | Unit | Value | Requirements of the Standard EN 197-1 [44] |
|---|---|---|---|
| Initial setting time | (min) | 249 | ≥45 |
| End of setting | (min) | 320 | – |
| Specific density | (g∙cm−3) | 3.23 | – |
| Specific surface | (cm2∙g−1) | 4216 | – |
| Water demand | (%) | 29.80 | – |
| Compressive strength | |||
| after 2 days | (MPa) | 30.6 | ≥20 |
| after 28 days | 60.9 | ≥52.5 | |
| SO3 content | (%) | 2.66 | ≤4.0 |
| Cl content | (%) | 0.06 | ≤0.1 |
