Light weight refractory aggregate is raw material of refractory castables. It is the important composition of monolithic refractory materials. It usually takes the form of particles with various granularity according to various construction demand. For instance, some construction may demand the larger granularity while some construction may prefer tiny granularity.
Lightweight refractory aggregate is raw material of refractory castables. It is the important composition of monolithic refractory materials. It usually takes the form of particles with various granularity according to various construction demand. For instance, some construction may demand the larger granularity while some construction may prefer tiny granularity.
Lightweight refractory aggregate plays a skeletal role in the refractory castables which is used to building the outer layer of furnaces and kilns. It possesses low bulk density which is good for the energy loss. It is widely used in the second industry. For instance, the power plant industry and the metallurgy industry.
| Material | Mullite Brased | High Alumina Based | Fireclay Based | lytag | |||
| Item | ZQM | ZQG-1 | ZQG-2 | ZQN-1 | ZQN-2 | ZQT | |
| Bulk Density, g/cm3 | 0.7-1.0 | 0.65-0.85 | 0.6-0.8 | 0.65-0.8 | 0.6-0.9 | 0.6-0.75 | |
| Crushing Strength, MPa | 3.0 | 2.5 | 2.0 | 2.5 | 2.0 | 1.5 | |
| PLC %（℃×h） | （1400×3） ±0.4 | （1350×3） ±0.4 | （1350×3） ±0.5 | （1300×3） ±0.5 | （1300×3） ±0.6 | （1200×3） ±0.6 | |
| Chemical % | AL2O3,≥ | 65 | 50 | 48 | 38 | 35 | 20 |
| Fe2o3,≤ | 1.0 | 1.2 | 2.0 | 1.3 | 2.5 | 3.5 | |
| Refractiness，℃，≥ | 1770 | 1730 | 1710 | 1690 | 1650 | 1580 | |
Features of Lightweight Refractory Aggregate
• Low Thermal Conductivity
• High Strength
• Sound Thermal Insulation
• High Refractory Temperature
