| 摘要 |
An additive for reducing the calcium aluminate cement content in a refractory mix containing calcium aluminate cement. The additive is comprised of about 80% by weight amorphous, powdered metakaolin, the metakaolin having a mean particle size of less than about 3.0 microns, and about 20% by weight microsilica, the microsilica having a mean particle size of less than 45 microns. |
