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Infusorial earth heat-insulating and fire-resistant brick
product Overview:
Infusorial earth heat-insulating and fire-resistant brick is a product made of diatomaceous earth, wet-mixed, formed into a blank, dried and fired. Infusorial earth heat-insulating and fire-resistant brick can only be used in locations below 900 ° C. Divided into five cards according to physical and chemical indicators: GG-0.7a, GG-0.7b, GG-0.6, GG-0.5a, GG-0.5b号。
Physical and chemical indicators:
| Item | index | ||||
| GG-0.7a | GG-0.7b | GG-0.6 | GG-0.5a | GG-0.5b | |
| Bulk Density g/cm³ ≤ | 0.7 | 0.7 | 0.6 | 0.5 | 0.5 |
| Compressive strength at room temperature Mpa ≥ | 2.5 | 1.2 | 0.8 | 0.8 | 0.6 |
| The reheating line change is not more than 2%, and the test temperature is 8 h. ℃ | 900 | ||||
| Thermal Conductivity【W/(m·K)】 average temperature（300±10）℃ ≤ | 0.20 | 0.21 | 0.17 | 0.15 | 0.16 |
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