Alumina-silica Monolithic Refractories
Aluminosilicate Castables, Mortars
Application
Anti-infiltration layer, Steel rod zone, Base insulation layer, Lightweight brick masonry
Description
Aluminosilicate unshaped refractories are refractory materials with aluminum oxide (Al₂O₃) and silicon oxide (SiO₂) as the main chemical components. They possess characteristics such as light weight, high-temperature resistance, and good thermal stability.Specifications
| Item | Dry anti-infiltration mixture | High-strength Castable | Lightweight Castable | Mortar |
|---|---|---|---|---|
| Al2O3+SiO2 % ≥ | 80 | 90 | 85 | 35 (Al2O3 %) |
| Refractoriness °С ≥ | 1400 | 1600 | – | – |
| Service Temperature °С ≥ | – | – | 1200 | 1560 |
| Bulk Density g/cm3 ≥ | 1.93 | 2.2 | ≤ 0.6 | – |
| CCS MPa ≥ | ||||
| 110°С×24h | – | 35 | 3 | – |
| 1000°С×3h | – | 60 | 3.9 | – |
| 900°С×3h | – | – | 3.9 | – |
| CMOR MPa ≥ | ||||
| 110°С×24h | – | 5 | 0.7 | – |
| 900°С×3h | – | 10 | 0.98 | – |
| Cold Rupture Bonding Strength MPa ≥ | – | – | – | 0.5 |
| Permanent Linear Reheat Change % | ||||
| 110°С×24h | 0~-0.1 | – | – | – |
| 1000°С×3h | 0~-0.4 | – | 0~-1 | 0~-4 |
| Thermal Conductivity W/ (m·K) | ~0.55(800°С) | ~0.6(200°С) | ~0.13(700°С) | ~0.35(1000°С) |
| Electrolyte Reaction Rate % ≤ | 13 | – | – | – |
| Bonding Time min | – | – | – | 1-3 |
| Particle Size Distribution % | ||||
| +0.5 мм | – | – | – | ≤ 2 |
| -0.074 мм | – | – | – | ≥ 50 |
| Application | As barrier layer in bottom of the cell | Side and collector bar area | Insulation areas such as cell bottom and cell end | Masonry of lightweight bricks |