研究了纯铝酸钙水泥、二氧化硅和氧化铝混合超细粉及膨胀剂的加入量对浇注料物理性能与流动性的影响。认为在一定的工艺条件下，纯铝酸钙水泥加入量的增加，将降低浇注料的性能指标；而混合超细粉的加入量以４％－６％较为合适。此外，采用共磨细粉和特殊养护能有效地提高浇注料的性能指标。并发现在该工艺下制备的浇注料不加钢纤维的使用效果更好。 The effects of pure calcium aluminate cement, silica and alumina mixed ultrafine powder and expansion agent on the physical properties and fluidity of castable were studied. It is considered that under certain technological conditions, the addition of pure calcium aluminate cement will reduce the performance of castables; and the amount of mixed ultrafine powder to 4% -6% is more appropriate. In addition, the use of co-grinding powder and special conservation can effectively improve the performance of castables. And found that the castable prepared under the process without the use of steel fibers better.