煅烧硬石膏对硅酸盐水泥水化过程的影响  

EFFECT OF CALCINED ANHYDRITE ON PORTLAND CEMENT

作　　者：杨淑珍[1] 宋汉唐[1] 杨新亚[1] 

机构地区：[1]武汉工业大学

出　　处：《硅酸盐学报》1997年第2期245-249,共5页Journal of The Chinese Ceramic Society

摘　　要：研究了不同温度煅烧的硬石膏对硅酸盐水泥水化过程的影响。用热导式微热量热仪测定了它们的水化反应速度；用ＸＲＤ测定了它们的水化产物，结合ＳＥＭ分析，发现经４００℃以上煅烧的硬石膏对硅酸盐水泥的水化有明显的促进作用，并指出水化产物的迅速生长以致形成密实的水泥石结构是其增强硅酸盐水泥的根本原因。In this paper,effect of anhydrite calcined at different temperatures on the hydration of portland cement is studied.The hydration rate was determined by thermal conduction DSC and the hydrates were analyzed by XRD and SEM. It is found that the hydration rate of portland cement with the anhydrite calcined over 400℃ is greatly improved.It is pointed out also that rapid formation of hydrates thus forming a dense hardened cement structure,is the main reason for the strengthening of cement.

关 键 词：煅烧 硬石膏 水化 硅酸盐水泥 水泥 

分 类 号：TQ172.71[化学工程—水泥工业] TQ172.1[化学工程—硅酸盐工业]