固硫灰兼用做水泥混合材及缓凝剂的研究  

Study on utilization of fly ash of fluidized bed coal combustion in cement production

作　　者：柳瑞翠[1] 曹凯[1] 刘子全[1] 慕喜才 王国川 

机构地区：[1]烟台大学环境与材料工程学院,山东烟台264005 [2]烟台东源水泥有限公司,山东烟台265323 [3]山东招远玲珑集团,山东招远265400

出　　处：《混凝土》2010年第8期88-89,共2页Concrete

基　　金：山东省自然科学基金(Y2007F19)

摘　　要：结合水泥生产技术要求,对固硫灰兼用做水泥的混合材和缓凝剂进行了研究。研究发现固硫灰的吸水率较高。用固硫灰作为水泥混合材,随固硫灰掺量的增加水泥砂浆的强度(尤其是早期强度)降低。固硫灰作为水泥混合材的同时其中所含的无水硫酸钙可全部代替二水石膏在水泥中起缓凝作用,水泥的凝结时间正常,水泥的安定性合格,符合国标要求。Combined with the technical requirements of cement production,the article studied FBCF（fly ash of fluidized bed coal combustion） taking a mixture of cement and retarder materials.The study found that FBCF has higher water absorption than Portland cement.Desulfurization ash as a mixture of cement,with the content of ash increased the strength of cement mortar（especially the early strength） lower.Fly ash as cement mixture at the same time contained anhydrous calcium sulfate can replace all dihydrate gypsum of the cement from the role of retardation.Experimental results showed that the setting time of cement and stability requirements in line with the national standard.

关 键 词：固硫灰 水泥 混合材 缓凝剂 

分 类 号：TU528.041[建筑科学—建筑技术科学]