Product Introduction
The matrix of low cement castable raw materials is higher than that of high alumina castable, and the ultrafine powder used for cohesion and bonding is calcium aluminate white cement. Ultrafine powder technology is used, and the calcium content of low cement castable is low, and the strength in the later period of use is high. In addition, the amount of water added during construction is also low. The medium temperature strength is also controlled.
Product Advantage
- Low cement castables have low cement dosage, low calcium content, low porosity, and strong corrosion resistance.
- Especially after low cement castables are cast and formed, there is no moisture problem during the curing process.
- Hydration during heating and baking will cause the strength to drop at medium temperature. On the contrary, as the heat treatment increases, the strength also increases.
Product Data
| Brand\Product | Low Cement Castable | Special Low Cement Castable | |||||||
| LDJ-45 | LDJ-60 | LDJ-70 | LDJ-75 | LDJ-80 | LDJ-90 | LTDJ-1 | LTDJ-2 | ||
| Dry bulk denstiy（g/m3） | 2.3 | 2.5 | 2.6 | 2.65 | 2.7 | 3.0 | 2.7 | 2.7 | |
| Chemical | Al2O3(%) ≥ | 45 | 60 | 70 | 75 | 80 | 90 | 75 | 75 |
| Zro2(%) | – | – | – | – | – | – | 3 | 3Cr2O3 | |
| Modulus of ruptureMpa | 110℃X24h≥ | 5 | 8 | 9 | 9 | 10 | 12 | 10 | 10 |
| 1500℃X24h≥ | 81350℃ | 1450℃X3h | 12 | 15 | 12 | 12 | |||
| 10 | |||||||||
| Cold crushing strengthMpa | 110℃X24h≥ | 30 | 40 | 40 | 45 | 45 | 60 | 45 | 45 |
| 1450℃X24h≥ | 60 | 80 | 80 | 85 | 90 | 85 | 90 | 90 | |
| Reheat linear change[1500℃×3h](%)≤ | ±0.51350℃×3h | ±0.51450℃×3h | ±0.51450℃×3h | ±0.51450℃×3h | ±0.5 | ±0.5 | ±0.5 | ±0.5 | |
Application Field
Low cement castables are suitable for linings of heating furnaces, various heat treatment furnaces, electric furnace covers, vertical kilns, rotary kilns, blast furnace tapholes, ladles, iron ladles, etc.
Related Products
In addition to high-alumina low-cement castables, low-cement castables also include corundum, mullite, corundum-mullite, aluminum-magnesium spinel and other low-cement castables with different matrices and materials.
