| 发明名称 |
VERBESSERTE MISCH- UND PORTLANDZEMENT- ZUSAMMENSETZUNGEN. |
| 摘要 |
This invention relates to an enhanced blended cement composition and to enhanced strength portland cements containing at least 4% C4AF when mixed with up to 0.2% of a higher trialkanolamine to exhibit a marked increase in 7 and 28-day compressive strengths. The higher trialkanolamine strength enhancing additive may be admixed with the cement powder or may be interground with the cement clinker during finish milling. |
| 申请公布号 |
AT115102(T) |
申请公布日期 |
1994.12.15 |
| 申请号 |
AT19900310949T |
申请日期 |
1990.10.05 |
| 申请人 |
W.R. GRACE & CO.-CONN. |
发明人 |
GARTNER, ELLIS MARTIN;MYERS, DAVID FRANCIS;GAIDIS, JAMES MICHAEL |
| 分类号 |
C04B18/02;C04B7/00;C04B7/52;C04B22/08;C04B22/12;C04B22/14;C04B24/12;C04B28/02;C04B28/04 |
主分类号 |
C04B18/02 |
| 代理机构 |
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