硅酸盐学报2011，Vol.39Issue(4)：670-675,6.
利用垃圾焚烧飞灰制备硫铝酸盐水泥及其水化放热特征
Sulphoaluminate Cement Prepared with Municipal Solid Waste Incineration Fly Ash and Its Hydration Heat Evolution Characteristics
摘要
Abstract
Municipal solid waste incineration (MSWI) fly ash was used as a raw material for calcining experiments of sulphoaluminate cement clinker in lab-scale. The effects of MSWI fly ash and alkalinity modulus on the formation of phases in the clinker were investigated. The morphology of the fired clinker was determined. The effect of gypsum on the mechanical properties of prepared cement and its characteristics of hydration heat evolution was analyzed. The results show that the desirable sulphoaluminate cement clinker can be fired by controlling the compositional parameters like alkalinity modulus (Cm) as 1.00-1.05, alumina-sulfur ratio P=2.5, and alumina-silica ratio n = 3, and the addition of MSWI fly ash into the raw mixture should not be greater than 30％. A sulphoaluminate cement can be prepared by adding the excessive amount of 5％-10％ (mass fraction) gypsum to the clinkers. There existes a hydration heat evolution difference between sulphoaluminate cement prepared with MSWI fly ash and the common raw mixes.关键词
垃圾焚烧飞灰/硫铝酸盐水泥/碱度/形貌/水化热Key words
municipal solid waste incineration fly ash/ sulphoaluminate cement/ alkalinity modulus/ morphology/ hydration heat分类
化学工程引用本文复制引用
吴凯,施惠生,郭晓潞..利用垃圾焚烧飞灰制备硫铝酸盐水泥及其水化放热特征[J].硅酸盐学报,2011,39(4):670-675,6.基金项目
国家"863"计划(2006AA06Z363)资助项目. （2006AA06Z363）
