Specification of Ordinary Portland Cement American Standard ASTM C 150 – TYPE 1
CHEMICAL COMPOSITIONS
| CHEMICAL COMPOSITIONS | ||
|---|---|---|
| Loss on Ignition (LOI) % | 3.00 Max | 0.93 |
| Insoluble Residue (I.R) % | 0.75 Max | 0.26 |
| Silicon Oxide (SiO 2 ) % | 20.00 Min | 20.59 |
| Aluminium Oxide (Al 2 O 3 ) % | 6.00 Max | 4.96 |
| Iron Oxide (Fe 2 O 3 ) % | 6.00 Max | 3.77 |
| Calcium Oxide (CaO) % | ----- | 63.35 |
| Magnesium Oxide (MgO) % | 6.00 Max | 2.94 |
| Sulphur Trioxide (SO 3 ) % | 3.00 Max | 1.96 |
| Alkali Eq. | 0.60 | 0.53 |
| C3S | ----- | 53.8 |
| C2S | ----- | 20.19 |
| C3A | 8.00 Max | 6.4 |
| C4AF | ----- | 12.04 |
| Chloride (Cl) | ----- | 0.01 |
PHYSICAL TEST
| PHYSICAL TEST | ||
|---|---|---|
| Setting Time | ||
| Initial Time (Min) | 60 Min | 105 |
| Final Time (Min) | 600 Max | 350 |
| Blaine (m 2 /kg) | 160 Min | 300 |
| Expansion (%) | 0.80 Max | 0.04 |
| Compressive Strength | ||
| 03 Days (PSI) | 1740 | 3948 |
| 07 Days (PSI) | 2760 | 5290 |
| 28 Days (PSI) | 4060 | 6400 |