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Composite portland cement 32.5,32.5R analysis report:
Portland cement | 32.5 | 32.5R | ||||
Items | Units | National | Internal | National | Internal | |
Sample size | Kg | / | 5.0 | / | 5.3 | |
SO3 | % | ≤3.5 | 2.4 | ≤3.5 | 2.5 | |
MgO | % | ≤6.0 | 1.1 | ≤6.0 | 1.4 | |
Cl | % | ≤0.06 | 0.01 | ≤0.06 | 0.01 | |
Fineness (residue on sieve, 80µm) | % | ≤10.0 | 0.2 | ≤10.0 | 0.2 | |
Time | Initial | H:Min | ≥0:45 | 4:50 | ≥45 | 228 |
Final | H:Min | ≤10:00 | 5:45 | ≤600 | 368 | |
Soundness pat test | / | past | / | past | ||
Bending strength | 3d | MPa | ≥2.5 | 4.8 | ≥3.5 | 4.8 |
28d | MPa | ≥5.5 | 7.3 | ≥5.5 | 7.5 | |
Compressive strength | 3d | MPa | ≥10.0 | 25.4 | ≥15.0 | 22.8 |
28d | MPa | ≥32.5 | 42.2 | ≥32.5 | 43.6 | |
Composite portland cement 32.5, 32.5R
