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Product category|Refractory Castable
Al2O3+SiC %: ≥65
Bulk density（g/cm³): 2.4
Compressive strength Mpa: ≥10
Online Time: 7*24 hours
Alkali-resistant castable use alumina silicate materials as aggregate and powder, configured with alumina cement and admixture. It reacts with alkali metal oxide at high temperature to form a high viscosity liquid phase, forming a glaze-like protective layer.
Alkali proof castables can resist the erosion of alkali metal oxides
Their alkali resistance is much better than ordinary clay and high-aluminum castable.
Alkali proof castables are suitable for preheaters, decomposition furnaces, cones, low-temperature sections of grate coolers and other parts of cement kilns.
| Items | GT-13N | |
| Al2O3+SiC % ≥ | 65 | |
| Bulk density g/cm³ | 110°C × 24h | 2.4 |
| Flexural strength Mpa ≥ | 1110°C × 3h | 90 |
| 110°C × 24h | 70 | |
| Compressive strength Mpa ≥ | 1110°C × 3h | 10 |
| 110°C × 24h | 10 | |
| Heating permanent line changes % | 1110°C × 3h | ±0.3 |
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