Research on Foamed Ceramic Formula System Based on Refractory Limits
Conventional foamed ceramics are porous and predominantly closed cells. They have the advantages of thermal insulation,waterproof and moisture-proof,sound insulation and noise reduction,and lightweight high strength. However,due to the many closed cells,the possibility of enclosed bubbles expanding and bursting during a fire increases,thereby affecting their refractory performance. This article focuses on the issue of the refractory limits of foamed ceramics. By optimizing the formula system of foamed ceramics,forming asymmetric foaming pore diameters,increasing wall thickness,and increasing the initial melting temperature of the foamed body,which enhances the refractory limit of the foaming ceramics from 1.2 hours to 3.6 hours. The research results have obtained authorized invention patents.
Foamed ceramicsRefractory limitAsymmetric foaming theory
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