| Portland cement is the most common type of cement in general use around the world, used as a basic ingredient of concrete, mortar, stucco, and most non-specialty grout. It is commonly used in general concrete construction when there is no exposure to sulphates in the soil or groundwater. OPC usually originates from limestone |
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| Major markets of Cement business, which are mainly the African Countries. |
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| PORTLAND CEMENT 42.5R (CHINA STANDARD) |
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| Items/ Indexes |
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National Standard |
Internal controlled indexes |
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| Cement MgO (%) |
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≤ 5.0 |
3.8 |
| Cement SO 3 (%) |
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≤ 3.5 |
2.3 |
| Cement loss on ignition (%) |
≤ 5.0 |
2.01 |
| Cement fineness (%) |
≤ 10.0 |
1 |
| Setting time (min) |
≥ 45 |
190 |
| Final setting time |
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≤ 600 |
245 |
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| Strength(MPa) |
3-day compressive strength |
≥ 22.0 |
22.3 |
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3-day bending strength |
≥ 4.0 |
5.1 |
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28-day bending strength |
≥ 6.5 |
7.2 |
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28-day compressive strength |
≥ 42.5 |
47.5 |
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