发明授权
US5858083A Cementitious gypsum-containing binders and compositions and materials
made therefrom
失效
含水泥石膏的粘合剂和由其制成的组合物和材料
- 专利标题： Cementitious gypsum-containing binders and compositions and materials made therefrom
- 专利标题（中）： 含水泥石膏的粘合剂和由其制成的组合物和材料
-
申请号： US858243申请日： 1997-05-19
-
公开(公告)号： US5858083A公开(公告)日： 1999-01-12
- 发明人: Elisha Stav , Edward A. Burkard , Ronald S. Finkelstein , Daniel A. Winkowski , Lambert J. Metz , Patrick J. Mudd
- 申请人： Elisha Stav , Edward A. Burkard , Ronald S. Finkelstein , Daniel A. Winkowski , Lambert J. Metz , Patrick J. Mudd
- 申请人地址： NC Charlotte
- 专利权人： National Gypsum Company
- 当前专利权人： National Gypsum Company
- 当前专利权人地址： NC Charlotte
- 主分类号： A62D1/00
- IPC分类号： A62D1/00 ; C04B28/14 ; C04B111/28 ; C04B111/62 ; C04B7/04 ; C04B11/28
摘要：
Cementitious binders include calcium sulfate beta-hemihydrate, a cement component comprising Portland cement, and either silica fume or rice-husk ash. The silica fume or rice-husk ash component is at least about 92 wt % amorphous silica and has an alumina content of about 0.6 wt % or less.
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