页岩掺入量对赤泥烧结砖的影响  

Effect of Dosage of Shale on the Sintered Red Mud Brick

作　　者：吕常胜[1] 王家伟[1] 贾永真[1] 刘华龙 李国旺[1] 

机构地区：[1]贵州大学材料与冶金学院,贵州贵阳550025 [2]中电投贵州遵义产业发展有限公司务川氧化铝分公司,贵州遵义563100

出　　处：《矿产综合利用》2013年第5期39-42,共4页Multipurpose Utilization of Mineral Resources

摘　　要：赤泥烧结砖因赤泥使用量大、制砖成本低而成为研究的热点.利用联合法赤泥、页岩为主要原料制备烧结砖,研究了页岩掺入量对赤泥烧结砖性能和物相组成的影响.结果表明：页岩掺入量在18％～24％时效果较好,抗压强度在14MPa以上,吸水率在20％以下,无石灰爆裂,中等程度泛霜,主要有石英、钙铝黄长石、硅灰石等晶相,还有一些玻璃相.The research on sintered red mud brick is the hot spot because of the large amount of red mud and the lower treatment cost.The sintered brick was prepared with combining red mud and sale as the main raw material.The effect of shale content on the properties and phase of sintered red mud brick were studied in this paper.The results showed that when the shale content among 18％ ～ 24％ was better,the compressive strength was above 14Mpa,and the water absorption was below 20％,there was no lime burst and medium degree of efflorescence.There were some main phases,such as quartz,gehlenite,wollastonite,as well as some glass phase in these bricks.

关 键 词：赤泥 页岩 烧结砖 

分 类 号：TD989[矿业工程—选矿] X758[环境科学与工程—环境工程]