摘要
本篇通过对磨细、风选、电场分级三种工艺所得的优化粉煤灰的形态、粒径分布、需水量比、强度比的比较得出:风选和电场分级灰可作为同类优化粉煤灰利用;磨细粉煤灰的活性高于其他二种;对于优化粉煤灰,用透气法测定其比表面积比用筛析法测定的细度,更适宜于表征粉煤灰的品质。
Comparative study of appearance,particles distribution,water demand and strength of fly ashes modified by grinding,air separation and electrical classification methods shows that fly ashes modified by air separation and electrical classification are roughly same and the fly ash modified by grinding is stronger in reactivity than others.For optimized fly ashes,specific surface value determined by air permeability method is more desirable than fineness value by sieve analysis method,since specific surface data obtained by air permeability method can reveal quality of fly ash more correctly.
出处
《建筑节能》
CAS
1993年第2期2-6,共5页
BUILDING ENERGY EFFICIENCY
基金
本课题系上海市节能科研项目"粉煤灰和冶金渣耦合效应及资源再生技术的研究"中分项研究报告之一
