| 发明名称 |
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| 摘要 |
PURPOSE:To provide a underwater non-separation concrete composition for underwater concrete placing which is not only less setting delay property but also is less slump loss and besides is superior to underwater separation resistance. CONSTITUTION:A (co)polymer of sodium conjugated dien sulfonate is added to the concrete compound for underwater concrete placing consisting of a cement binder, aggregate, water and hydroxy alkyl cellulose and/or hydroxyalkyl alkyl cellulose as a water reducing agent. |
| 申请公布号 |
JP2857653(B2) |
申请公布日期 |
1999.02.17 |
| 申请号 |
JP19920306375 |
申请日期 |
1992.10.20 |
| 申请人 |
SHINETSU KAGAKU KOGYO KK;JEI ESU AARU KK |
发明人 |
YAMAKAWA TSUTOMU;ONDA YOSHIRO;KATO TADAYA;ONO TOSHIO;BETSUSHO KEIICHI |
| 分类号 |
C04B24/26;C04B24/38;C04B28/02;C04B111/74;(IPC1-7):C04B28/02 |
主分类号 |
C04B24/26 |
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