Introduction
This injection mortar series is developed for internal lining grouting and relining of large smelting equipment including blast furnaces, hot blast stoves and thermal pipelines. The material exhibits excellent flowability, effectively filling gaps between the furnace shell and cooling staves, as well as repairing damaged lining areas to protect the lining and extend its service life. Available in both water-based and waterless series for different application requirements. High-alumina grades are used for cooling stave repair after refractory spalling, while SiC-C grades serve tuyere and cooling plate maintenance, and carbonaceous grades are applied to hearth and iron notch repairs.
Key Advantages
Specification
| Item | JH-YR-70 | JH-YR-55 | JH-YR-55 | JH-YR-C55 | Test Condition |
| Chemical Composition (%): ≥ | Al₂O₃ | 70 | 55 | 55 | 20 |
| SiC+C | – | – | – | 50 | |
| Bulk Density (g/cm³): ≥ | 110℃×24h | 2.3 | 2.1 | 2.0 | 1.5 |
| Cold Crushing Strength (MPa): ≥ | 110℃×24h | 15 | 10 | 6 | 14 |
| Modulus of Rupture (MPa): ≥ | 110℃×24h | 3 | 4 | 4 | 2 |
| 1200℃×3h | 5 | 0.5 | 0.5 | – | |
| Application | Aqueous Injection Mortar | Anhydrous Injection Mortar |
Packaging: Woven bag — Specifications: 1000kg/bag, 500kg/bag, 50kg/bag, 25kg/bag
Precautions: Keep dry. Do not use if caked
Shelf life: 6 months
