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阴离子掺杂对硅酸盐水泥熟料烧成的影响

龙志强 王振林

重庆理工大学学报(自然科学版)Issue(8):44-49,6.
重庆理工大学学报(自然科学版)Issue(8):44-49,6.DOI:10.3969/j.issn.1674-8425(z).2014.08.010

阴离子掺杂对硅酸盐水泥熟料烧成的影响

Effects of Anion Doping on Clinker Sintering of Silicate Cement

龙志强 1王振林1

作者信息

  • 1. 重庆理工大学材料科学与工程学院,重庆 400054
  • 折叠

摘要

Abstract

Effects of anion doping on clinker sintering of silicate cement were investigated using NaF, CaF2,CaSO4·2H2O,Ca3(PO4)2 as compound dopants.The mineral phase structure,morphology and free lime content of clinker sintered at 1 250℃and 1 350℃were characterized by X-ray diffrac-tion,scanning electron microscope and glycerin-ethanol method,respectively.The results show that NaF,CaF2 as effective mineralizers facilitating clinker sintering,especially for CaF2 ,can significantly improve the burnability of cement raw meal and decrease sintering temperature by about 100 ℃.Ca3 (PO4 )2 can evidently promote the formation of clinker minerals sintered at elevated temperature and its optimal doping content approximates 1%.Singly doping CaSO4 will give rise to liquid-phase yield and decrease its viscosity despite of the limited effects on burnability of cement raw meal.

关键词

硅酸盐水泥/熟料烧成/阴离子掺杂/矿化/易烧性

Key words

portland cement/clinker sintering/anion doping/mineralization/burnability

分类

化学工程

引用本文复制引用

龙志强,王振林..阴离子掺杂对硅酸盐水泥熟料烧成的影响[J].重庆理工大学学报(自然科学版),2014,(8):44-49,6.

基金项目

重庆理工大学实验技术开发基金资助项目 ()

重庆理工大学学报(自然科学版)

OACSTPCD

1674-8425

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