Grey portland cement
US $40.00
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Ordinary Portland Cement (OPC) is general-purpose cement complying with BS 12, SS 26, and ASTM C150 Type I and suitable for all general construction projects such as buildings, foundations, beams, slabs, bridges, pavements, and pre-cast concrete products.
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| CHEMICAL COMPOSITION : | |
| Silicon Dioxide (SiO2) | 20.8 - 21.5 |
| Aluminium Oxide (Al2O3) | 5.30 |
| Ferric Oxide (Fe2O3) | 3.25 - 3.5 |
| Calcium Oxide (CaO) | 65.60 |
| Magnesium Oxide (MGO%) | 1.7 - 3.0 |
| Sulphur Trioxide (SO3) | 2.7 - 3.0 |
| Loss Of Ignition (LoI) | 1.8 - 3.0 |
| Insoluble Residue % | 0.1 - 0.7 |
| Tricalcium Silicate (C3S%) | 50.0 - 54.4 |
| Dicalcium Silicate (C2S%) | 14.2 - 18.2 |
| Tricalcium Aluminate (C3A%) | 6.0 - 6.8 |
| Tricalcium Alumino Ferrice (C4AF%) | 11.6 |







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