- 目录
- 新型墙体材料与施工
- 首页
利用废镁铝尖晶石砖制备免烧砖的试验研究
作者：沈灿1，吴小文1，张月娜1，马淑龙2，陶天一3，朱干宇3，田博4，刘艳改1
[1.中国地质大学（北京） 材料科学与工程学院，北京 100083；
2.北京金隅通达耐火技术股份有限公司，北京 100041；
2.北京金隅通达耐火技术股份有限公司，北京 100041；
3.中国科学院过程工程研究所 环境技术与工程研究部，北京 100083；
4.天津炜润达新材料科技有限公司，天津 301800]
4.天津炜润达新材料科技有限公司，天津 301800]
摘要：以用后耐火材料（废镁铝尖晶石砖）处理得到的剥离钢渣及废镁铝尖晶石为主要原料，辅以水泥制备免烧型路面砖。研究了原料配比、制备工艺对免烧砖微观结构和力学性能的影响规律。得到废镁铝尖晶石砖基免烧砖的优化原料配比和制备工艺为：剥离钢渣和废镁铝尖晶石占总料的90%，水泥10%，成型压力15 MPa。制得的固废基免烧砖常温养护28 d最高抗压、抗折强度分别为
9.57、4.86 MPa。
关键词：用后耐火材料；钢渣；镁铝尖晶石；免烧砖；抗压强度
中图分类号：TU522.1 文献标识码：A 文章编号：1001-702X（2022）02-0090-04
Experimental study on preparation of non-burning brick from used magnesia-alumina spinel bricks
SHEN Can1，WU Xiaowen1，ZHANG Yuena1，MA Shulong2，TAO Tianyi3，ZHU Ganyu3，TIAN Bo4，LIU Yangai1
（1.School of Materials Science and Technology，China University of Geosciences Beijing，Beijing 100083，China；
2.Beijing Jinyu Tongda Refractory Technology Co. Ltd.，Beijing 100041，China；
3.Department of Environmental Technology and Engineering，Institute of Process Engineering，Chinese Academy of Sciences，Beijing 100083，China；
4.Tianjin Weirunda New Material Technology Co. Ltd.，Tianjin 301800，China）
4.Tianjin Weirunda New Material Technology Co. Ltd.，Tianjin 301800，China）
Abstract：This paper studied the preparation of non-burning brick by using used magnesia aluminum spinel brick stripped steel slag and used magnesia aluminum spinel as the main raw materials，supplemented with cement. The influence law of raw material ratio and preparation process on the microstructure and mechanical properties of unburned bricks was mainly studied. Optimal raw material ratio and preparation process for the waste magnesia-alumina spinel brick-based non-burning bricks were obtained. The stripped steel slag and used magnesium aluminum spinel accounted for 90% of the total material，cement 10%，molding pressure 15 MPa，room temperature curing for 28 d. The highest compressive strength and flexural strength of the prepared solid waste-based unburned bricks were 9.57 MPa and 4.86 MPa，respectively.
Key words：used refractory material，steel slag，magnesia alumina spinel，non-burning brick，compressive strength