利用废镁铝尖晶石砖制备免烧砖的试验研究  

Experimental study on preparation of non-burning brick from used magnesia-alumina spinel bricks

作　　者：沈灿 吴小文[1] 张月娜 马淑龙 陶天一 朱干宇[3] 田博 刘艳改[1] SHEN Can;WU Xiaowen;ZHANG Yuena;MA Shulong;TAO Tianyi;ZHU Ganyu;TIAN Bo;LIU Yangai(School of Materials Science and Technology,China University of Geosciences Beijing,Beijing 100083,China;Beijing Jinyu Tongda Refractory Technology Co.Ltd.,Beijing 100041,China;Department of Environmental Technology and Engineering,Institute of Process Engineering,Chinese Academy of Sciences,Beijing 100083,China;Tianjin Weirunda New Material Technology Co.Ltd.,Tianjin 301800,China)

机构地区：[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 [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

出　　处：《新型建筑材料》2022年第2期90-93,共4页New Building Materials

基　　金：国家重点研发计划重点专项项目(2018YFC1901504)。

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。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.

关 键 词：用后耐火材料 钢渣 镁铝尖晶石 免烧砖 抗压强度 

分 类 号：TU522.1[建筑科学—建筑技术科学]