摘要
文中对锂矿石冶炼过程中产生的两种工业废渣进行烘干、磨细,与硫铝酸钙水泥熟料混合配制混凝土膨胀剂,并分析不同配比对混凝土膨胀剂限制膨胀率的影响规律。试验结果表明,锂渣本身具有一定的微膨胀效果,用硅铝质锂渣和富含石膏的锂渣与硫铝酸钙水泥熟料按一定比例配制的膨胀剂效果较好,其硫铝(SO_(3)与Al_(2)O_(3)的摩尔比)的比值大约为3,其限制膨胀率和抗压强度符合国家标准GB/T 23439-2017《混凝土膨胀剂》要求的Ⅰ型膨胀剂性能指标。
Two industrial waste residues generated during the smelting process of lithium ore were used for drying and grinding,and the concrete expansion agent was prepaid to formulate concrete expansion with calcium sulfate cement.The test results show that the lithium itself has a certain micro-expansion effect.When the silicon aluminum residue and the lithium-rich lithium and the calcium sulfate cement clinker is well-presented in a certain proportion The ratio of(SO_(3) and Al_(2)O_(3))is about 3,and its restrictions on the expansion rate of the expansion rate and pressure resistance intensity meet the national standard GB/T 23439-2017《Concrete Expansion Agent》typeⅠexpansion agent performance indicators.
作者
胡翔
石齐
Hu Xiang;Shi Qi(Jiangxi Ruijin Wannian Qing Cement Co.Ltd.,Ganzhou,Jiangxi 341000;Jiangxi Building Materials Rearch And Instritute Co.Ltd.,Nanchang,Jiangxi 330001)
出处
《江西建材》
2023年第2期18-21,共4页
Jiangxi Building Materials
关键词
锂渣
混凝土膨胀剂
限制膨胀率
强度
Lithium slag
Concrete expansion agent
Restricted expansion rate
Compressive strength
作者简介
胡翔(1989-),男,江西万年人,大专,主要研究方向为混凝土及其制品;通信作者:石齐(1988-),男,湖北汉川人,硕士,高级工程师,主要研究方向为混凝土及固废资源化利用
