Description
Alumina low-cement gunning mix is an unshaped refractory material composed of refractory materials with a specific particle size distribution, chemical binders, and additives, used for repairing the linings of thermal equipment through spray application. Its main components include alumina, low-cement binders, and additives. The material is characterized by high refractoriness, excellent thermal shock resistance and corrosion resistance, high strength, strong wear resistance, good adhesion, easy to fast construction and efficient protection.
Specification
| Item | Grade | |||
| ADP-80 | ADP-85 | ADP-90 | ||
| ω(Al2O3) / % | ≥80 | ≥85 | ≥90 | |
| Cold Modulus of Rupture/ MPa | 110℃×24h | ≥5 | ≥6 | ≥6 |
| 1100℃×3h | ≥6 | ≥7 | ≥7 | |
| Cold Crushing Strength/ MPa | 110℃×24h | ≥40 | ≥45 | ≥50 |
| 1100℃×3h | ≥55 | ≥60 | ≥65 | |
| Bulk Density/（g/cm3） | ≥2.8 | ≥2.9 | ≥3.0 | |
| Linear Change Rate on Reheating / % | 1100℃×3h | ±0.4 | ±0.4 | ±0.4 |
Applications
Primarily used for the lining repair and protection of various industrial high-temperature kilns and equipment.
