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Product Description
Calcium aluminate refractory cement
Items | CA-75E | CA-75G | CA-75A | ||||
Refractoriness ℃ | 1710-1750 | ||||||
Chemical composition % | |||||||
Al2O3 | 75 | ||||||
CaO max | 25 | ||||||
SiO2 max | 1.0 | ||||||
Fe2O3 max | 0.7 | ||||||
Na2O+K2O max | 0.4 | ||||||
S max | 0.1 | ||||||
Specific density g/cm3 | 3.1-3.2 | 3.1-3.2 | 3.1-3.2 | ||||
Specific surface area m2/kg min | 600 | 600 | 600 | ||||
Initial setting time minutes min | 30 | 30 | 30 | ||||
Final setting time minutes max | 360 | 360 | 360 | ||||
Rupture strength Mpa | |||||||
6 hr | 3.0 | - | - | ||||
24 hr | 5.0 | 5.0 | 5.0 | ||||
72 hr | 6.0 | 6.0 | 6.0 | ||||
Cold crushing strength Mpa | |||||||
6 hr | 15 | - | - | ||||
24 hr | 35 | 30 | 35 | ||||
72 hr | 45 | 40 | 45 | ||||
Castable performance | Corundum castable | Low cement castable | Corundum castable | Low cement castable | Corundum castable | Low cement castable | |
Water addition % | 5.2 | 6.8 | 5.2 | 6.8 | 5.2 | 6.8 | |
Flow value mm | |||||||
Initial flow value | 196 | 178 | 192 | 168 | 220 | 164 | |
30 minutes | 186 | 175 | 190 | 164 | 203 | 152 | |
60 minutes | 174 | 168 | 177 | 165 | 193 | 156 | |
Cold crushing strength Mpa | |||||||
24 hr room temperature | 18 | 21 | 21 | 22 | 20 | 20 | |
110℃ dry 24hr | 82 | 115 | 91 | 109 | 83 | 98 | |
1100℃ heating 6 hr | 52 | 123 | 49 | 120 | 50 | 116 | |
