SEHR DAUERHAFTE, KIESELSÄUREHALTIGE ASCHEN ENTHALTENDE ZEMENTPRODUKTE
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
DE69117512(T2)
申请公布日期
1996.07.11
申请号
DE1991617512T
申请日期
1991.06.18
申请人
THE REGENTS OF THE UNIVERSITY OF CALIFORNIA, OAKLAND, CALIF., US