High Alumina Mortar
High alumina mortar is made of high alumina refractory clinker powder with appropriate amount of plasticized clay binding agent and plasticizer.
- Al2O3%:48-65%
- High fire resistance
- For high alumina brick
- Erosion resistance
Product Details
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. It 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: good plasticity, easy construction, high bond strength, high corrosion resistance, high load softening temperature, good thermal shock resistance, spalling resistance and erosion resistance.
Product performance indicators
| 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 |
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