杂质离子对硅酸盐水泥熟料烧成影响的研究进展  

REVIEW OF FOREIGN IONS' EFFECTS ON PORTLAND CEMENT CLINKER SINTERING

作　　者：管宗甫[1,2] 陈益民[1] 秦守婉[1,2] 

机构地区：[1]中国建筑材料科学研究院 [2]郑州大学,郑州450052

出　　处：《硅酸盐学报》2003年第8期795-800,共6页Journal of The Chinese Ceramic Society

基　　金：国家重点基础研究发展规划项目(2001CB610701)

摘　　要：杂质离子对硅酸盐水泥熟料烧成有不同影响。综合评述了碱金属离子及碱土金属离子、过渡金属离子以及阴、阳离子的复合等对熟料烧成影响,从化学结构参数角度分析了杂质离子所起的作用。一些杂质离子单独或复合使用,能够改善熟料易烧性,提高熟料的强度。其作用机理是:降低碳酸钙分解温度;改善液相性质,增加液相量;在熟料矿物中形成缺陷,引起晶格畸变或稳定不同的晶型变体;形成新矿物等。这些作用与杂质离子半径、电价、电负性等化学结构参数有关。应进行深入研究,以便于无害化、资源化、有利化地利用工业废渣。Effects of different foreign ions on the sintering of portland cement clinker are different. Some relative investigations are reviewed separately in terms of alkaline earth metal ions, alkali metal ions, transition metal ions and compound of cations and anions, and the effects are analyzed from the point of chemical structural parameters. It is possible to improve the clinker burnability and to increase the clinker strength by admixing ions in single or complex way. The mechanism includes reducing the de-carbonating temperature, increasing the volume of liquid and improving the characteristic of liquid phase, forming defects in the clinker mineral and producing the aberrance of crystal lattice, stabilizing different polymorphs, and forming new minerals. The above affections are related to the radius, valences and electro-negativities of the ions. It is necessary to make the further study in this field in order to make full use of industrial wastes as resources harmlessly and profitably.

关 键 词：水泥熟料 烧成 杂质离子 化学结构参数 硅酸盐水泥 

分 类 号：TQ172.11[化学工程—水泥工业]