The main material of high alumina refractory mortar is high chamotte, the binding agent is soft clay or chemical bond. The content of Al2O3 is determined by the brick composition and using request of construction part.
Application of Kerui High Alumina Mortar
High alumina mortar can be widely used in all kinds of industry furnaces with high alumina bricks, such as the construction of furnace roof, regenerative chamber, combustion chamber and other parts of hot-blast furnace, upper part and other parts of blast furnace, the repair of furnace top, furnace wall and other parts of industrial furnaces.
Features of Kerui High Alumina Mortar
Good plasticity, easy construction, high bond strength, high corrosion resistance, high load softening temperature, good thermal shock resistance, spalling resistance and erosion resistance.
Parameters of Kerui High Alumina Mortar
| Item | GL-65 | GL-55 | GL-48 |
| Al2O3%, ≥ | 65 | 55 | 48 |
| Fe2O3%, ≤ | 2.0 | 2.0 | 2.0 |
| Refractoriness, ℃ | 1800 | 1780 | 1760 |
| 0.2MPa load softening start temperature, °C, ≥ | 1500 | 1480 | 1450 |
| Reburnishing line change1500℃, 2h1450℃, 2h | 0-0.2 – | 0-0.2 – | – 0-0.2 |
| Porosity, %≤ | 19 | 19 | |
| Normal temperature pressure resistance temperature, MPa≥ | 58.8 | 58.8 | 49 |
