| Property | Specification |
| Appearance | Fine powder, typically grey or white |
| Particle Size | 0.01 mm to 0.1 mm (average diameter) |
| Color | Grey, light grey, or white depending on the type |
| Density | 1.44 to 1.50 g/cm³ |
| Specific Gravity | 3.10 to 3.15 |
| Moisture Content | Less than 0.5% |
| Compressive Strength | Varies based on type (e.g., 25 to 50 MPa after 28 days) |
| Setting Time | Initial set: 30 to 60 minutes; Final set: 2 to 10 hours |
| Blain Fineness | 300 to 500 m²/kg (for ordinary Portland cement) |
| Chemical Composition | 60%-67% lime (CaO), 17%-25% silica (SiO₂), 3%-8% alumina (Al₂O₃) |