HAO Yong,XIN Xiangyu,HUANG Yongbo,DUAN Guangbin

(School of Materials Science and Engineering,University of Jinan,Jinan 250022，China)

Abstract:Chemical and mineral compositions of red mud,as well as preparation of slag cement,Portland cements and sulphoaluminate cement were reviewed.It is pointed out that when red mud is used to prepare cement,different sources of aluminum ore can lead to unstable chemical compositions of red mud and increase the difficulty of raw cement preparation.The content of ferric oxide and alkali metals in red mud is high,which easily leads to melting of raw cement,and increases the risk of ring formation and even blockage of rotary kiln.High content of alkali metal in raw materials will lead to preheater crust,easily lead to cement hardening body pan alkali,and reduce the utilization rate of red mud in cement preparation.It is considered that using red mud to prepare cement is an effective way to deal with red mud,which is in line with the policy of sustainable development and has good economic,environmental,and social benefits.In order to realize efficient utilization of red mud,it is necessary to carry out scientific research and innovation in the preparation of cement from red mud.

Keywords:red mud;slag cement;Portland cement;sulphoaluminate cement

中图分类号： TU52                              文献标志码：A

文章编号：1008-5548(2022)02-0001-06

DOI:10.13732/j.issn.1008-5548.2022.02.001

收稿日期： 2021-10-02，修回日期：2021-10-20，在线出版时间：2022-01-23。

基金项目：国家自然科学基金项目，编号：52002144；山东省自然科学基金项目，编号：ZR2020QE046。

第一作者简介：郝勇(1997—)，男，硕士研究生，研究方向为建筑材料。E-mail：1907997707@qq.com。

通信作者简介：

黄永波(1987—)，男，博士，研究方向为建筑材料。E-mail：mse_huangyb@ujn.edu.cn；

段广彬(1983—)，男，教授，博士，硕士生导师，研究方向为流体机械与工程。E-mail：mse_duangb@ujn.edu.cn。