固硫灰制备高贝利特水泥  

Study on high belite cement clinker calcination with ashes from circulating fluidized bed combustion

作　　者：吕淑珍[1] 陈雪梅[1] 卢忠远[1] 彭艳华[1] 

机构地区：[1]四川省非金属复合与功能材料重点实验室-省部共建国家重点实验室培育基地,西南科技大学,四川绵阳621010

出　　处：《新型建筑材料》2011年第8期1-3,共3页New Building Materials

基　　金：“十二五”国家科技支撑计划项目(2011BAA04B04)

摘　　要：为了探索固硫灰新的利用途径,利用固硫灰替代部分原料制备高贝利特水泥,采用TG-DTA综合热分析法、XRD射线衍射等方法分别确定了生料的煅烧温度和熟料的矿物组成,并对水泥的物理力学性能进行了检测。研究表明,制备的高贝利特水泥主要矿物组成是C2S、C4A3S、C2AF和CaSO4;掺入适量的石膏后,其3 d抗压强度达到30 MPa以上,28 d抗压强度达到80 MPa以上。In order to explore new utilizing approach of ashes from circulating fluidized bed combustion（CFBC ashes for short）, high belite cement is prepared by using CFBC ashes to substitute partial raw materials. Calcining temperature and mineral composition of clinker are analyzed by thermogravimetric-differential thermal analysis （TG-DTA） and X-ray diffraction （XRD） respectively, and the physical mechanical properties of clinker are tested. The results show that the main minerals of high belite cement clinker are C2S, C4A3S,C2AF and CaSO4;compression strength of 3 days is more than 30 MPa, and that of 28 days is more than 80 MPa while incorporation of proper amount of gypsum.

关 键 词：固硫灰 高贝利特水泥 熟料 矿物 

分 类 号：TQ172.44[化学工程—水泥工业] X701.3[化学工程—硅酸盐工业]