铁尾矿砂掺量对玻化微珠保温混凝土物理性能的影响研究  

Study on physical properties of thermal insulation concrete w ith glazed hollow beads under iron tailing sands replacement rate

作　　者：姜晨 李珠[1] 赵林[1] 姜鲁[1] 王振明[1] JIANG Chen;LIZhu;ZHAO Lin;JIANG Lu;WANG Zhenming(College of Architecture and Civil Engineering,Taiyuan University of Technology,Taiyuan 030024,China)

机构地区：[1]太原理工大学建筑与土木工程学院

出　　处：《混凝土》2019年第12期169-172,共4页Concrete

基　　金：再生保温混凝土力学性能与保温性能影响因素及其机理研究(51508370)

摘　　要：铁尾矿是铁尾矿厂在选矿后残留的大宗固体废弃物,铁尾矿的堆积会对周边的区域环境造成污染,为了解决铁尾矿的堆积问题,以铁尾矿砂在玻化微珠保温混凝土中的替代率为变量,研究铁尾矿砂在玻化微珠保温混凝土中的最大利用率。试验结果证明,随着铁尾矿砂的替代率提高,掺加了铁尾矿砂的玻化微珠保温混凝土的抗压强度和导热系数都呈现先上升再下降的变化规律。试验结果表明,在铁尾矿砂替代率为60%时,可获得比较理想的抗压强度。Iron tailings is a large amount of solid waste residue after dressing in iron tailings factory,the accumulation of iron tailings will damage to the environment of surrounding area.In order to solve the problem of the accumulation of iron tailings,this study aims at finding maximum utilization of iron tailings in thermal insulation concrete with glazed hollow beads,regarding replacement rate of iron tailings sand as variable.The result shows that cube compressive strength and thermal conductivity of thermal insulation concrete with glazed hollow heads first increase and then decrease under the increasing of the replacement of iron tailings sands The results show that the ideal compressive strength can be obtained when the replacement rate of iron tailings sand is 60%.

关 键 词：铁尾矿砂 玻化微珠保温混凝土 抗压强度 轴心抗压强度 导热系数 

分 类 号：TU528.01[建筑科学—建筑技术科学]