为经济有效地利用我国排放量巨大的赤泥,消除其对环境的污染,在对赤泥进行化学组成、矿物组成和热稳定性分析基础上,提出以赤泥本身方解石为发泡剂,外加废玻璃、膨润土为硅铝调整剂制备赤泥陶粒的研究,并利用XRD和SEM方法对所得陶粒的组成和内部结构进行了分析.结果表明:废玻璃、膨润土单独调整或联合调整均可优化赤泥陶粒的性能,但联合调整所得陶粒性能较优;当赤泥、废玻璃、膨润土质量比为74:15:11时,所得陶粒的容重、筒压强度、吸水率分别为1.43 g/cm3、22.14 MPa、1.23%;陶粒产品中的晶体矿物主要为钙黄长石,而赤泥中的主要晶体矿物为方解石,正是赤泥本身方解石高温分解产生的CO2使得陶粒内部具有多孔的结构;废玻璃、膨润土联合调整所得陶粒较废玻璃、膨润土单独调整所得陶粒的内部孔隙发达,孔径均匀.
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