赤泥-粉煤灰加气混凝土制备研究  

Study on preparation of red mud & fly ash aerated concrete

作　　者：王瑞燕[1] 岳涛[1] 

机构地区：[1]重庆交通大学土木建筑学院材料系,重庆400074

出　　处：《新型建筑材料》2011年第6期31-34,共4页New Building Materials

基　　金：重庆市科学技术委员会自然科学基金项目(CSTC2009BB7376)

摘　　要：赤泥是铝土矿提取氧化铝过程中产生的废弃物。赤泥建材化利用具有使用量大、产品附加值高等特点,是赤泥无害化、资源化利用的优选途径。以强度级别A3.5、密度级别B06的加气混凝土为设计目标,研究了组成材料、养护制度对赤泥-粉煤灰加气混凝土强度、密度的影响。结果表明,采用赤泥、粉煤灰等固体工业废料制备的加气混凝土,强度和密度满足加气混凝土砌块质量要求,满足建筑材料放射性核素限量要求。Red mud is the waste generated in process of extracting alumina from bauxite. The utilization of red mud in preparing construction materials has features of large using amount and high added value,which is an optimal method for recycle and safe treatment of the red mud. To the target of aerated concrete with A3.5 strength grade and B06 density grade, influence of materials composition and curing conditions on strength and density of red mud ＆ fly ash aerated concrete has been studied. Resuits show that for aerated concrete prepared with red mud,fly ash and other industrial solid waste,its strength and density can meet the quality requirements of aerated concrete block,and meet the radioactive species limit requirement of building material.

关 键 词：赤泥 粉煤灰 加气混凝土 强度 密度 放射性 

分 类 号：TU522.32[建筑科学—建筑技术科学]