水泥 425R
CEM l I 42.5/R Items Units Guaranteed Test Method Compressive Strength . 2 Days . 28 Days MPa ≥ 20.0 ≥ 42.5 EN 196-1 . Initial setting time Minutes ≥ 60 EN 196-3 Sulfate content (SO3) % ≤ 4.0 EN 196-2 Chloride content ( Cl-) % ≤ 0.1 Loss on Ignition (LOI) % ≤ 5.0 Insoluble Residue ( IR ) % ≤ 8.0 Soundness Expansion mm ≤ 10 EN 196-3
水泥525N
CEM I 52.5/N Items Units Guaranteed Test Method Compressive Strength . 2 Days . 28 Days MPa ≥ 20.0 ≥ 52.5 EN 196-1 . Initial setting time Minutes ≥ 45 EN 196-3 Sulfate content (SO3) % ≤ 4.0 EN 196-2 Chloride content ( Cl-) % ≤ 0.1 Loss on Ignition (LOI) % ≤ 5.0 Insoluble Residue ( IR ) % ≤ 5.0 Soundness Expansion mm ≤ 10 EN 196-3
