CA50 Al2O3 High Alumina Refractory Cement Powder For Fire Resistance Place
CA50-A600 Al2O3 High Alumina Refractory Cement Powder For Fire Resistance Place
The Refractory Cement Powder CA50-A600 A700 A900, also called as cement refractory castable cement. Generally there are 4 grades of refractory cement according to Al2O3 content and strength, A600, A700,A900 and CA-70. The heat resistance cement can be used for making refractory castable and other high temperature resistant products.
The calcium aluminate cements CA50-A600 A700 A900 manufactured by CH Refractories with stable quality and best price. The cement are exported to many countries regularly, such as Saudi, Malaysia, Indonesia and so on. We are waiting for long term cooperation with you
Physical and chemical index of calcium aluminate cements CA50-A600 A700 A900
| Brand | A600 | A700 | A900 | CA-70 | |
|
Chemical Composition (%)
|
Al2O3 | ≥50 | ≥51 | ≥53.5 | 68.5-70.5 |
| SiO2 | ≤7.8 | ≤7.5 | ≤5.5 | ≤0.5 | |
| Fe2O3 | ≤2.5 | ≤2.5 | ≤2.5 | ≤0.2 | |
| CaO | / | / | / | 28.5-30.5 | |
| MgO | / | / | / | ≤0.4 | |
| R2O | ≤0.4 | ≤0.4 | ≤0.4 | ≤0.4 | |
| S | ≤0.1 | ≤0.1 | ≤0.1 | / | |
| Cl | ≤0.1 | ≤0.1 | ≤0.1 | / | |
| 325 mesh residue on sieve(%) | ≤15 | ≤12 | ≤8 | / | |
| d50(μm) | / | / | / | 11-14 | |
| -45μm(%) | / | / | / | ≤8.0 | |
| Specific Surface (m2/kg) | ≥300 | ≥320 | ≥350 | / | |
|
Setting time(h:min)
|
Initial setting (min) | ≥45 | ≥60 | ≥90 | 120-180 |
| Final Setting (min) | ≤6 | ≤6 | ≤6 | 150-240 | |
|
Cold Modulus of Rupture (MPa)
|
24 hour | ≥6 | ≥6.5 | ≥8 | 7.5-10 |
| 72 hour | ≥7 | ≥7.5 | ≥10 | 10-12 | |
|
Cold Crushing Strength (Mpa)
|
24hour | ≥45 | ≥55 | ≥72 | 40-50 |
| 72hour | ≥55 | ≥65 | ≥82 | 45-55 | |
Advantages of CH series High Alumina Refractory Cement:
●Fast setting at high temperature
●Increase castable strength
●Can replace castable when using
●Can be added to both heavy and light castable
● Biological acid erosion
● High temperature resistance
●Sulfate corrosion resistance
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