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Product description of refractory fire mortar
There are two types of refractory fire mortar: heavy and light. According to different materials, it can be divided into clay, high alumina, silicon magnesium, carbon mud, etc. The main material of high alumina refractory mortar is high clinker, and the binder is soft clay or chemical binder. The content of Al2O3 depends on the composition of bricks and the use requirements of building parts.
Features of refractory fire mortar
Good plasticity, easy construction, high bonding strength, corrosion resistance, high-temperature softening load, good thermal shock resistance, peeling resistance and corrosion resistance.
More relevant refractory products: Refractory Materials SK High Alumina Bricks
Parameters of refractory fire mortar
| Item | - | KR-55A | KR-65A | KR-75A |
| Refractoriness, ℃ , ≥ | - | 1770 | 1790 | 1790 |
| Al2O3, %, ≥ | - | 55 | 65 | 75 |
| Cold bending resistance, bond strength, ≥ | 110 ℃ after drying | 1 | 1 | 1 |
| 1400 ℃ x3h after sintering | 4 | 4 | 4 | |
| Permanent Linear Change % | 1400 ℃ x3h after sintering | +1~-5 | +1~-5 | +1~-5 |
| Bonding Time, min | - | 1~3 | 1~3 | 1~3 |
| Particle size, % | -1.0mm | 100 | 100 | 100 |
| +0.5mm ≤ | 2 | 2 | 2 | |
| -0.074mm≥ | 50 | 50 | 50 |
Application of refractory fire mortar
The refractory fire mortar can be widely used in various high alumina brick industrial furnaces, such as the masonry of hot blast furnace roof, regenerative chamber, combustion chamber, repair of blast furnace roof, repair of industrial furnace roof and furnace wall.
Mortar Packing
- Plastic bag(25kg), Kraft bag (25kg), Plastic bag(1 ton).
- 1 ton on pallet with plastic film.
- As per customer's request.