掺杂锶对高阿利特水泥熟料制备及性能的影响  

Effect of strontium on production and performance of alite-rich cement clinker

作　　者：李贵强[1,2] 穆秀君[1,2] 尹超男[2] 王守德[3] 芦令超[3] 

机构地区：[1]中国建材检验认证集团股份有限公司,北京100024 [2]中国建筑材料科学研究总院,北京100024 [3]济南大学材料科学与工程学院,山东济南250022

出　　处：《水泥》2012年第12期6-9,共4页Cement

摘　　要：采用正交试验方法研究了煅烧温度、保温时间及掺杂氧化锶和硫酸锶对高阿利特水泥熟料煅烧与性能的影响。借助于XRD和SEM-EDS等测试方法研究了水泥熟料的组成、结构及水泥性能。结果表明,高阿利特水泥熟料的最佳制备条件是煅烧温度为1450℃,保温时间为60min,氧化锶和硫酸锶的适宜掺量分别为1.5%、0.5%。在熟料中掺入氧化锶和硫酸锶可以促进阿利特矿物的形成,有利于水泥强度的提高。掺加适量氧化锶时,水泥的早期强度明显提高;而掺加硫酸锶时,有利于该水泥后期强度的提高。The effect of calcination temperature,retention time,and addition of strontium oxide and strontium sulfate on the sintering operation and performance of alite-rich cement clinker were investigated by the orthogonal test method.The composition and structure of cement clinker and the performance of cement were studied by XRD and SEM-EDS.The results showed that the optimal sintering temperature was 1450℃ and the optimal retention time was 60 minutes,the best strontium oxide and strontium sulfate content in the clinker was 1.5% and 0.5% respectively.The doping of strontium oxide or strontium sulfate could promote the formation of alite mineral,which was beneficial to the increase of cement strength.The early strength of cement could be improved obviously by adding proper strontium oxide,and the later strength of cement could be increased by adding strontium sulfate.

关 键 词：水泥熟料 阿利特 掺杂 氧化锶 硫酸锶 

分 类 号：TQ172.12[化学工程—水泥工业]