Refractory Cement CA75
- Al2O3(%): 74.5-75.5
- CaO(%): 23.5-25.5
- Compressive Strength (72hrs) (MPa):60-65
- Final Setting Time (min): 90-180
- Certification: ISO9001/ISO14001/ISO45001/ISO50001
- Sample: testing of sample is available
Description of Refractory Cement CA75
CA75 are customized products meeting the particular compound design demand. lts performance is between CA70 and CA80.
Kerui Refractory Cement CA75
Chemical Analysis
| SiO2,% | Al2O3, % | Fe2O3, % | CaO, % | MgO, % | R2O, % | S, % | CL, % |
|---|---|---|---|---|---|---|---|
| ≤ | ≥ | ≤ | - | - | ≤ | ≤ | ≤ |
| 0.5 | 73 | 0.5 | 21-23 | - | 0.4 | 0.1 | 0.06 |
Typical Physical Properties
| Methods | Units | Usual range | Specification limit | ||||
|---|---|---|---|---|---|---|---|
| Fineness | d50, μm | 6-9 | ≤10 | ||||
| 325M, % | - | ≤5 | |||||
| S, m²/kg | 420-480 | ≥400 | |||||
| Setting Time | Initial Setting Time, min | 150-200 | ≥150 | ||||
| Final Setting Time, min | 240-300 | ≤360 | |||||
| Strength (ISO) | Flexural Strength, Mpa | 1d | 6.5-8.5 | ≥4 | |||
| 3d | 8.5-10.5 | ≥5 | |||||
| Compressive Strength, Mpa | 1d | 42-52 | ≥25 | ||||
| 3d | 52-62 | ≥30 | |||||
| Refractoriness, ℃ | 1750-1800 | ||||||
| Workable time | Moderate | ||||||
