Second Cement Industries Type 1-425
| Chemical Analysis | Physical Test | |||
| SiO2 % | 21.687 |
Fineness : Specific Surface, Blaine |
3060 | Cm2/g |
| Al2O3 % | 5.00 | |||
| Fe2O3 % | 3.57 |
Soundness : Autoclave Expansion |
0.1 | % |
| CaO % | 62.25 | |||
| MgO % | 2.00 |
Setting Time : Initial Final |
140 180 |
Min. Min. |
| SO3 % | 2.10 | |||
| Cl % | 0.035 | |||
| Na2O % + 0.658 K2O % | 1.0 |
Compressive Strength : 3 Days 7 Days 28 Days |
210 310 435 |
Kg/cm2 Kg/cm2 Kg/cm2 |
| Loss On Ignition % | 1.60 | |||
| Ins. Res % | 0.40 | |||
| Free CaO % | 1.50 | |||
| C3S % | 42.6 |
Bending Strength : 2 Days 7 Days 28 Days |
- - - |
- - - |
| C2S % | 30.6 | |||
| C3A % | 7.2 | |||
| C4AF % | 10.2 | |||
| Bulk Density (g/cm2) | 1.2 - 1.3 | Sieve Test A | 2.00 | % |
