Jun 29, 2021
High Alumina Cement
High Alumina Refractory Cement Characteristics
Quick hardening and good early stage strength.
Excellent material for rapid repair.
High temperature resistance and wear resistance.
Has wide application fields such as kilns, furnaces, boilers, fireplaces, etc.
Thermal shock resistance, convenient for use.
High Alumina Refractory Cement Parameters
| Item | RSCA-50 | RSCA-60 | RSCA-70 | RSCA-80 | |
| Chemical Component
|
Al2O3 (%) | 50-60 | 60-68 | 68-77 | ≥77 |
| SiO2(%) | ≤8.0 | ≤5.0 | ≤1.0 | ≤0.5 | |
| Fe2O3 (%) | ≤2.5 | ≤2.0 | ≤0.7 | 0.5 | |
| R2O(Na2O+0.658K2O) (%) | ≤0.4 | ≤0.4 | ≤0.4 | ≤0.4 | |
| Rupture Strength MPa | 1day | 5.5 | 2.5 | 5.0 | 4.0 |
| 3days | 6.5 | 5.0 | 6.0 | 5.0 | |
| 28days | / | 10.0 | / | / | |
| Compressive Strength MPa | 1day | 40 | 20 | 30 | 25 |
| 3days | 50 | 45 | 40 | 30 | |
| 28days | / | 80 | / | / | |
| Setting Time (h) | Initial time | ≥0.5 | ≥1 | ≥0.5 | ≥0.5 |
| Final time | ≤6 | ≤18 | ≤6 | ≤6 | |
High Alumina Refractory Cement Applications
High alumina refractory cement are usually used to patch or line furnaces and bond bricks or joints in high temperature applications. Calcium aluminate cement can also be used to make refractory mortar or concrete for the construction of cement rotary kiln and other industrial furnace lining. High alumina refractory cement is also important construction material for high temperature projects which should withstand atmospheric or rain erosion for a long period.
RS Kiln Refractory-Your Best High Temperature Projects Supplier
RS kiln refractory is a comprehensive group company that produces all kinds of unshaped(monolithic) and shaped refractory materials. RS group has 3 subordinate factories and one specialized sales company. The factories annual output capacity of shaped refractory products is 100,000 tons while monolithic refractory materials is 300,000 tons. Since RS was authorized export certificate in 2003, RS brand refractory bricks, castable, cement, ceramic fiber textiles and so on have been exported to more than 60 countries and regions and won good fame.
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