| 发明名称 |
QUICK-HARDENING CEMENT COMPOSITION AND METHOD FOR PRODUCING THE SAME |
| 摘要 |
PROBLEM TO BE SOLVED: To provide a quick-hardening cement excellent in strength development by using a new anhydrous gypsum replacing fluoro gypsum. SOLUTION: The quick-hardening cement comprises anhydrous gypsum obtained by heating dihydrate gypsum in a steam atmosphere in the substantial absence of sodium citrate and sodium sulfate. COPYRIGHT: (C)2008,JPO&INPIT
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| 申请公布号 |
JP2007269520(A) |
申请公布日期 |
2007.10.18 |
| 申请号 |
JP20060095157 |
申请日期 |
2006.03.30 |
| 申请人 |
SUMITOMO OSAKA CEMENT CO LTD |
发明人 |
HEBIMI SHINGO;YAMASHITA SUMISHIGE;NAKADA HIRONOBU |
| 分类号 |
C04B7/38;C04B7/02;C04B7/345;C04B11/032;C04B11/05;C04B22/14 |
主分类号 |
C04B7/38 |
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