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Infusorial earth heat-insulating and fire-resistant brick
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. According to the physical and chemical indicators, it is divided into five brands: GG-0.7a, GG-0.7b, GG-0.6, GG-0.5a, and GG-0.5b.
Physical and chemical indicators:
|Bulk Densityg/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|