| 发明名称 |
IMPROVED RICE HULL ASH ADMIXTURE FOR CONCRETE |
| 摘要 |
<p>The invention relates to compositions and aqueous suspensions comprising rice hull ash having a volume median particle diameter measured by laser light scattering of up to about 4 micrometers and a cement water-reducing agent, and to their use in hydraulic cement compositions.</p> |
| 申请公布号 |
JPH02141448(A) |
申请公布日期 |
1990.05.30 |
| 申请号 |
JP19890041993 |
申请日期 |
1989.02.23 |
| 申请人 |
W R GRACE & CO |
发明人 |
ROORENSU JIYOSEFU KINTO;ERISU MAACHIN GAATONAA |
| 分类号 |
C04B18/10;C04B24/18;C04B24/22;C04B24/26 |
主分类号 |
C04B18/10 |
| 代理机构 |
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代理人 |
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| 地址 |
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