| 摘要 |
A refractory composition characterized by relatively high abrasion resistance, good flowability and long working time, comprises 0.5 to 5% by weight of volatilized silica, 3.0 and 15% by weight of -65 mesh alumna, and 10 to 40% by weight of calcium aluminate cement, the balance being a refractory agreggate such as silica, alumina or fireclay. The composition may be used in lining transfer lines employed in petrochemical processes. |
