Table 1 Ordinary Portland cements properties
Element | SiO2 | Al2O3 | Fe2O3 | CaO | MgO | SO3 | Na2O | K2O | L.O.I |
|---|---|---|---|---|---|---|---|---|---|
Cement | 21.2% | 4.53% | 3.61% | 61.63% | 2.38% | 2.80% | 0.36% | 0.22% | 1.96% |
Property | Result | ||||||||
Initial setting time (min) | 97Â min | ||||||||
Final setting time (min) | 198Â min | ||||||||
Compressive strength (3Â days) | 247Â kg/cm2 | ||||||||
Compressive strength (7Â days) | 350Â kg/cm2 | ||||||||