【摘要】 利用灰色关联分析方法研究粉煤灰的粒度分布对水泥性能的影响.结果表明:0～5μm、5～10μm粉煤灰颗粒分别是水泥3d、28d抗压强度的最强影响因子;水泥3d、28d强度随小于33μm的粉煤灰颗粒含量增大而提高,随大于33μm的粉煤灰颗粒含量增大而降低;可以通过优化粉煤灰的粒度分布来改善水泥性能.更多还原

【Abstract】 The effect of particle size distribution of fly ash on properties of cement was investigated by using grey volume correlation analysis method.Research results indicate that the fly ash particles of 0～5 μm and 5～10μm respectively have significantly effect on the 3dand 28dstrength;Fly ash particles of 0～ 33μm have enhancing effect on 3dand 28dstrength.However,strength decreases with increasing of content of the fly ash particles of larger than 33μm.Therefore,cement properties can be improved by optimizing particle size distribution of fly ash powder.更多还原