发明名称 |
HOEGST DURABLA CEMENTPRODUKTER INNEHAOLLANDE SILIKATASKA |
摘要 |
<p>Cement blends incorporating at least 5 and up to 40 % siliceous crop residue ash and cement compositions and products containing said blends are provided. At least about 50 % of the ash particles are in the 10-75 micrometer size distribution range and the mean diameter is greater than 6 micrometers. Methods for decreasing the permeability of hardened cement products and a method for accelerating the early strength of a concrete mixture containing fly ash are also provided.</p> |
申请公布号 |
FI925854(A) |
申请公布日期 |
1992.12.23 |
申请号 |
FI19920005854 |
申请日期 |
1992.12.23 |
申请人 |
THE REGENTS OF THE UNIVERSITY OF CALIFORNIA |
发明人 |
MEHTA, PROVINDAR K. |
分类号 |
C04B7/02;C04B7/28;C04B18/10;C04B18/24;C04B28/00;C04B28/02;C04B28/04;C04B111/20 |
主分类号 |
C04B7/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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