Erosion resistance capability, low resistance, good hydration heat, suitable for the erosion by sulfate harbor, wharf, undergrou
Test Items | unit | National standard | Test result | conclusion | |
tricalcium silicate | % | ≤ 50.0 | 46.6 | Qualified | |
tricalcium aluminate | % | ≤ 3.0 | 2.3 | Qualified | |
loss on lgnition | % | ≤3.0 | 2.5 | Qualified | |
magnesium oxide | % | ≤ 5.0 | 3.7 | Qualified | |
sulfur trioxide | % | ≤ 2.5 | 2.2 | Qualified | |
Insoluble residue | % | ≤ 1.5 | 1.05 | Qualified | |
Specific surface | m2/kg | ≥280 | 423 | Qualified | |
soundness | / | qualified | Qualified | ||
initial setting time | Min | ≥45 | 170 | Qualified | |
final setting time | Min | ≤600 | 230 | Qualified | |
Alkali content* | % | ≤0.6 | / | Qualified | |
Sulfate resistance | % | ≤0.04 | 0.025 | Qualified | |
bending strength ISO | 3 days | Mpa | ≥3.0 | 5.1 | Qualified |
28 days | ≥6.5 | 7.2 | Qualified | ||
Compressive strength | 3 days | Mpa | ≥15.0 | 24.0 | Qualified |
28 days | ≥42.5 | 46.0 | Qualified | ||
42.5 HSR sulfate resistance cement
