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用硅钙渣烧制水泥熟料的研究

李辉 洪宁

硅酸盐通报2017,Vol.36Issue(11):3925-3931,3943,8.
硅酸盐通报2017,Vol.36Issue(11):3925-3931,3943,8.

用硅钙渣烧制水泥熟料的研究

Research on Preparing Cement Clinker by Utilizing Silicate-Calcium Slag

李辉 1洪宁2

作者信息

  • 1. 西安建筑科技大学材料与矿资学院,西安 710055
  • 2. 陕西省生态水泥混凝土工程技术研究中心,西安 710055
  • 折叠

摘要

Abstract

Calcium silicate slag (CSC)with different proportion instead of limestone and clay in cement raw material was calcined at different temperature (1200 ℃,1250 ℃,1300 ℃,1350 ℃,1400 ℃ and 1450 ℃),and the burnability,the mineral composition and the micro morphology of the clinker were analyzed. The results indicate that the addition of CSC in the raw material contributes to the formation of liquid phase,reduces the calcination temperature,improves the burnability of raw material,and is more conducive to the production of Belite,however,is not good for the formation of Alite. When the incorporation of CSC in the raw material is high (60%),the presence of microscale sodium in CSC make raw materials form alkaline liquid phase and valence bond strong AlO5-4 and FeO5-4 tetrahedron which are not conducive to the formation and growth of C3 S crystals,so that the C3 S mineral of clinker is close to C2 S whether the appearance or Ca/Si molar ratio.

关键词

硅钙渣/水泥熟料/熟料矿物相

Key words

silicate-calcium slag(SCS)/cement clinker/clinker mineral phase

分类

化学化工

引用本文复制引用

李辉,洪宁..用硅钙渣烧制水泥熟料的研究[J].硅酸盐通报,2017,36(11):3925-3931,3943,8.

基金项目

国家自然科学基金(51672207) (51672207)

陕西省自然科学基金(2012JM6001) (2012JM6001)

硅酸盐通报

OA北大核心CSCDCSTPCD

1001-1625

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