| 摘要 |
This invention is concerned with a refractory concrete based on zircon and aluminous cement. In known refractory concrete based on zircon and aluminous cement, which is used in particular for manufacturing linings or molded bodies resistant to molten metal, particularly aluminum melts, the high thermal conductivity due to the high bulk density is often detrimental. The new refractory concrete should have a lower thermal conductivity with good resistance to molten metal and in particular to aluminum melts. The new refractory concrete contains as a further constituent 10 to 50% by weight, based on the solid constituents, of light refractory materials, particularly expanded vermiculite, expanded perlite, light fireclay and/or mineral fibers. |
