Technical Specification :
High Alumina Cement CA-50
Index Properties | Unit | A600 | A700 | G9 | ||
Chemical composition | AI2O3 | % | 50-60 | 50-60 | 53.5 max | |
CaO | % | 33min | 33min | 33.00 min | ||
SiO2 | % | 8.00 max | 8.00 max | 5.50 max | ||
Fe2O3 | % | 2.50 max | 2.50 max | 2.50 max | ||
Ro2 | % | 0.4 max | 0.4 max | 0.40 max | ||
Specific Surface Aea | Cm3/ g | 3000 max | 3000 max | 350 min | ||
Beginning Set | min | 60min | 60min | 90 min | ||
Ending Set | h | 6max | 6 max | 6 min | ||
Bending Strength | 1 day | Mpa | 5.50 max | 7.00 min | 8.00 min | |
3 day | Mpa | 6.50 max | 8.00 min | 10.00 min | ||
Compressive Strength | 1 day | Mpa | 40.00 max | 50.00 min | 72.00 min | |
3 day | Mpa | 50.00 max | 60.00 min | 82.00 min | ||
Refractories | oC | 1350 | 1350 | 1450 |
Calcium Alumina Cement
Items | Unit | C-70 | CA-80 | ||
Chemical composition | AI2O3 | % | 68.50-72.00 | 78.50-81.00 | |
CaO | % | 28.0-31.50 | 17.00-20.00 | ||
SiO2 | % | < 0.50 | < 0.40 | ||
Fe2O3 | % | < 0.50 | < 0.30 | ||
K2O+Na2O | % | < 0.50 |
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Specific Surface Aea | Cm2/g | > 5000 | > 700 | ||
Beginning Set | min | > 45 | > 30 | ||
Ending Set | h | < 6 | < 6 | ||
Bending Strength | 24 H | Mpa | > 7.0 | > 5.50 | |
Compressive Strength | 24 H | Mpa | > 45 | > 40 | |
Refractories | oC | > 1600 | > 1790 |
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