Phosphoric acid-impregnated clay bricks are alkali-resistant coke stones and binders that are first granulated and powdered, mixed at a certain ratio, compressed and molded, fired at high temperature, impregnated with phosphoric acid solution, and then calcined again Stronger products.
| Items | Behaviors |
| Al2O3, % ≥ | 41-45 |
| P2O5, % ≥ | 7 |
| Fe2O3 % ≤ | 1.4 |
| 0.2Mpa Load softening temperature≥ | 1450 |
| Reheating Linear Change % | 0~-0.2 |
| Apparent Porosity,% ≤ | 14 |
| Cold Crushing Strength, Mpa ≥ | 55 |
| Alkali resistance (strength drop rate) | 15 |
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