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A platform for research: civil engineering, architecture and urbanism
Mullite light heat-insulation fire-resistant brick and production method thereof
The invention relates to a mullite light heat-insulation fire-resistant brick and production method thereof. The fire-resistant brick includes following raw materials: 25-35% of aluminium hydroxide, 10-30% of flint clay clinker, 10-30% of kyanite, 35-50% of a bonding agent. With the raw materials, 1.0-2.0 m<3> of expandable polystyrene and 0.3-0.5 m<3> of sawdust are added. The bonding agent is kaolin or aluminum oxide cement. The fire-resistant brick is high in pressure resistance strength, is low in heat conductive coefficient, is low in change rate of a high-temperature re-burning curve and is good in thermal shock resistance, is excellent in performance and can reach the requirement of the standard of related products in American ASTM. By means of aluminium hydroxide for replacing aluminum oxide, the production method is low in energy consumption and cost, can generate more mullite crystal phases, can effectively reduce the content of a corundum phase in the product, and can increase the thermal shock resistance. The fire-resistant brick can be used in a heat insulation layer and a fireproof layer in all thermal equipment, achieves both energy-saving and fireproofing effects and is beneficial to popularization.
Mullite light heat-insulation fire-resistant brick and production method thereof
The invention relates to a mullite light heat-insulation fire-resistant brick and production method thereof. The fire-resistant brick includes following raw materials: 25-35% of aluminium hydroxide, 10-30% of flint clay clinker, 10-30% of kyanite, 35-50% of a bonding agent. With the raw materials, 1.0-2.0 m<3> of expandable polystyrene and 0.3-0.5 m<3> of sawdust are added. The bonding agent is kaolin or aluminum oxide cement. The fire-resistant brick is high in pressure resistance strength, is low in heat conductive coefficient, is low in change rate of a high-temperature re-burning curve and is good in thermal shock resistance, is excellent in performance and can reach the requirement of the standard of related products in American ASTM. By means of aluminium hydroxide for replacing aluminum oxide, the production method is low in energy consumption and cost, can generate more mullite crystal phases, can effectively reduce the content of a corundum phase in the product, and can increase the thermal shock resistance. The fire-resistant brick can be used in a heat insulation layer and a fireproof layer in all thermal equipment, achieves both energy-saving and fireproofing effects and is beneficial to popularization.
Mullite light heat-insulation fire-resistant brick and production method thereof
GENG CHANGBIN (author) / ZHANG QINGYONG (author)
2015-10-14
Patent
Electronic Resource
English
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