水泥熟料中的方镁石及其定量分析研究进展  

Research Progress of the Periclase and Quantitative Method in Cement Clinker

作　　者：许彦明[1] 徐玲玲[1] 李文伟[2] 

机构地区：[1]南京工业大学材料科学与工程学院,南京210009 [2]中国长江三峡集团公司,宜昌443002

出　　处：《材料导报（纳米与新材料专辑）》2013年第2期355-358,361,共5页

基　　金：国家科技支撑计划(2011BAE27B01)

摘　　要：综述了水泥熟料中氧化镁的存在形式及方镁石对水泥安定性的影响;总结了方镁石的晶体数量、晶粒尺寸对水泥熟料中方镁石水化程度的影响;概括了方镁石的水化动力学研究及在压蒸条件下的水化程度。总结出氧化镁的定量分析方法有基准法、差减法。方镁石的定量分析方法有甘油-乙醇法、硝酸铵法、电导法、乙二醇法、乙酸-甲醇法、醋酚甲酯-醋酸法、X衍射法及全谱拟合法,并比较了它们的优缺点,发现全谱拟合法是测定方镁石的最佳方法。The existent form of MgO in clinker and effect of periclase on cement stability are reviewed.The influence of crystal size and crystals number on hydration degree are summarized.The hydrated dynamics of the periclasite and the hydrated degree of the periclasite under the condition of pressure are presented.The methods of the determination of MgO include reference methods and generation of usage in clinker.There are many methods be proposed for the determination of periclase in clinker,including the ethanol-glycerol method,the ammonium nitrate method,the electric conductivity method,the ethylene glycol method,the acetic acid-methanol method,the vineger methyl phenolacetic acid method,X-ray diffraction and the XRD full spectrum fitting method.The advantages and disadvantages of all methods are compared.In surnmary,the XRD full spectrum fitting method is the effectivest method.

关 键 词：水泥熟料 氧化镁 方镁石 

分 类 号：TQ172.1[化学工程—水泥工业]