test item | unit | test result |
K2O | % | 0.34 |
NA2O | % | 0.22 |
ALKALI | % | 0.44 |
Product name
| Ordinary Portland cement | trademark | - | Type | P.0 42.5R |
Batch number | SP4001R | ||||
Inspection items | Technical requirements | Test results | judgement | ||
Sulphur trioxide % | ≤3.5 | 2.34 | qualified | ||
Magnesia % | ≤5.0 | 2.45 | qualified | ||
Ignition loss quantity % | ≤5.0 | 1.50 | qualified | ||
Chloride ions % | ≤0.06 | 0.012 | qualified | ||
stability | In Boiling method inspection must be qualified | qualified | qualified | ||
Setting time | First setting | ≥45 min | 2h29min | qualified | |
Last setting | ≤600 min | 3h31min | qualified | ||
Strength MPa | Pressure strength | 3days of a single value | - | 24.0 26.1 25.5 25.1 25.0 25.5 | - |
3days average | ≥22.0 | 25.2 | qualified | ||
28days of a single value | - | 61.3 61.4 62.9 61.2 63.3 60.6 | - | ||
28days average | ≥52.5 | 61.8 | qualified | ||
Flexural strength | 3days of a single value | - | 4.9 5.4 5.2 | - | |
3days average | ≥4.0 | 5.2 | qualified | ||
28days of a single value | - | 10.6 9.8 10.1 | - | ||
28days average | ≥7.0 | 10.2 | qualified | ||
Inspected company | Hebei Kaien Trading Co.Ltd
| ||||
Sampling date | 2011-3-12 | Sampling personnel | Bao Yongke | Sample arrival date | 2011-3-16 |
Sample number | 18kg | Sampling base | 200 tons | inspectors | Li Meifang |
Sample level | qualification | Sampling Number
| 0369509 | Sealed samples state | Seal intact |
Inspection basis | GB 175-2007CCGF 303-2008 Cement product quality supervision inspection implement norms | ||||
test-conclusion | qualified | ||||
note |
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cement