不同“增钙”情况下低质粉煤灰活化技术研究  

Study of Activated Technologies of Low-quality Fly Ash Under the Different Conditions of “Enhancing-calcium”

作　　者：刘振清[1] 

机构地区：[1]东南大学交通学院,南京210096

出　　处：《粉煤灰综合利用》2001年第2期25-27,共3页Fly Ash Comprehensive Utilization

摘　　要：本文总结了国内外粉煤灰活化技术研究现状 ,对两种Ⅲ级粉煤灰活化技术进行了较系统的研究。采用石灰膏与磨细熟石灰粉对粉煤灰水泥砂浆中的粉煤灰进行“增钙” ,在此基础上掺入各种激发剂与其不同掺量来激发粉煤灰的活性。通过测试砂浆试样的不同龄期力学强度和 pH值 ,对粉煤灰活性激发效果和粉煤灰活化机理进行了分析。试验结果表明 ,采用磨细熟石灰粉对粉煤灰进行“增钙”更为有效。The study conditions of activated technologies of fly ash are summarized in this paper.The activated technologies of two kinds of class Ⅲ fly ash are systematically studied.The activation of fly ash in its mortars,which are mixed different kinds and quantities of activators,is presented as well as use of Ca(OH) 2 “enhancing calcium”.Through the mechancial strengths and the pH value of fly ash mortars of each different time are examined, the activated effect and mechanism of fly are analyzed and discussed.

关 键 词：低质粉煤灰 活化 激发剂 PH值 水泥砂浆 

分 类 号：TQ177.6[化学工程—硅酸盐工业]