Castable Refractories, Low Cement Refractory castable specifications:
Chemical Composition | 50% | 60% | 80% |
sio2 | <42 | <32 | <12 |
al2o3 | >50 | >60 | >80 |
fe2o3 | < 2.0 | < 1.5 | < 1.5 |
cao | <2.5 | <2.5 | <2.5 |
Refractoriness temp | < 1500 | < 1600 | < 1700 |
Bulk density after drying g/cm3 at 100 c | > 2.3 | > 2.35 | > 2.5 |
Water required | 6-9% | 6-9% | 6-9% |
Cold Crushing Strength kg/cm2 at | |||
110c | >450 | >450 | >550 |
800c | >470 | >470 | >580 |
1400c | >500 | >500 | >600 |
