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strength grading of cement
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nature : to indicate the strength of cement grade. Strength usually based on standard test method detected the age of 28 days compressive strength and the will. For example, 425 cement mean the cement samples measured by the standard 28-day compressive strength of the age of 425-524 kg of force / cm 2, while the sample of 3 days, 7 days and the compressive strength of three days, 7 days, 28 days flexural Strength is also required to achieve the standard of 425 cement requirements. For special cement (such as faster hardware Portland cement, aluminate cement, sulphoaluminate cement, iron-aluminate cement, etc.), labeling from three days to determine the compressive strength. Cement division grade cement to provide a reasonable basis for selection.


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More Detailed Data:
1) cement
2) Cement
3) accelerated test for cement strength
4) strength
5) strength
Notice Some description was translated by software and the data is only as a reference.
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