CA-70 Calcium Aluminate Cement
CA-70 Calcium Aluminate Cement is a high-purity alumina cement produced by
ZE XI MINERAL CO., LTD.
It is manufactured without additives and is suitable for formulating
refractory castables, LCC and ULCC systems with excellent mechanical strength
and thermal stability.
Brand Characteristics
| Brand |
Type |
Main Phases |
Secondary Phases |
Characteristics & Uses |
| CA70 |
General |
CA |
CA₂, α-Al₂O₃ |
Without additives; suitable for all kinds of refractory castables,
LCC & ULCC; high mechanical strength
|
Chemical Composition
| Item | Unit | CA70 |
| Al₂O₃ | % | 68 – 72 |
| CaO | % | ≤30 |
| SiO₂ | % | ≤1.0 |
| Fe₂O₃ | % | ≤0.7 |
Physical Properties
| Item | Unit | CA70 |
| Blaine specific surface area | m²/kg | ≥600 |
| Initial setting time | min | ≥30 |
| Final setting time | min | ≤360 |
| Compressive strength (24h) | MPa | 30 |
| Compressive strength (72h) | MPa | 40 |
| Flexural strength (24h) | MPa | 5 |
| Flexural strength (72h) | MPa | 6 |
Packaging & Storage
Packaging: 25 kg paper bags × 50 bags per pallet
Storage: Keep dry and protected from moisture.
Do not mix with other types of cement.