High Temperature Alkali-Resistant Refractory Castable
Product Specificaton of Alkali-resistant castables
Alkali-resistant castables are a type of prefabricated refractory material specifically designed to combat the destructive effects of alkali metals, their oxides, and compounds. These materials are crucial for lining high-temperature industrial equipment exposed to these elements.
Features and Advantages of Alkali-resistant refractory castables:
1. Good resistance to alkaline gases
2. The corrosive ability of slag
3.Long service life
Key Applications Alkali-resistant refractory castables
These tough castables find use in various industrial settings, particularly:
- Cement Kilns: They line critical areas like kiln hoods, preheater systems, decomposing furnaces, and material pipelines.
- Other Industries: Alkali resistance is also valuable in applications like glass kilns, ceramic tunnel kilns, steel furnaces, and the paper industry's alkali recovery furnaces.
Overall, alkali-resistant castables are a vital tool for industries that rely on high-temperature processes involving alkali compounds. Their exceptional resistance and durability ensure equipment protection and extended service life.
Product Specification of Alkali-resistant refractory castables
| Item | RS-13NL(GT-13NT) | RS-14NT(GT-14NL) | |
| Al2o3(%) | 48 | 48 | |
| SIO2(%) | 50 | 50 | |
| Bulk Density(g/cm3) | 2.10 | 2.20 | |
Cold Crushing Strength(Mpa) |
110℃*24h |
70 | 70 |
| 1100℃*3h | 70 | 70 | |
Cold modules of rupture(Mpa) |
110℃*24h | 7 | 7 |
| 1100℃*3h | 7 | 7 | |
| Linear change after burning(%) | 1100℃*3h | +-0.4 | +-0.4 |
| Alkali resistance(%)) | First Grade | First Grade | |
| Max using temperature | ℃ | 1300 | 1400 |
| Construction Reference Water Consumption | % | 6.5-7.5 | 6.0-7.0 |
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