掺杂锂渣再生混凝土轴压长柱受压性能试验研究  

Experimental Study on Compressive Performance of Doped Lithium Slag Axial Recycled Concrete Long Columns

作　　者：秦拥军[1] 李振兴[1] 侯勇辉 王翀 

机构地区：[1]新疆大学建筑工程学院,乌鲁木齐830047

出　　处：《武汉理工大学学报》2017年第3期65-70,共6页Journal of Wuhan University of Technology

基　　金：国家自然科学基金(51668061;51668060)

摘　　要：为了研究掺杂锂渣再生混凝土轴压长柱的受压性能,分别以再生粗骨料替代率、锂渣掺量为变量,设计9个试件进行加载试验。结果表明:掺杂锂渣再生混凝土轴压长柱在加载后的破坏过程、竖向位移、混凝土应变、钢筋应变的变化与普通混凝土轴压长柱相似;伴随再生粗骨料替代率的增加,试件承载力会先提高后降低;伴随着锂渣掺量的增加,试件承载力会不断提高;采用现行规范方法计算掺杂锂渣再生混凝土轴压长柱受压承载力时均具有较大安全储备。The loading test was carried out for 9 test pieces to study the performance of doped lithium slag axial recycled concrete long columns,with the substitution rate of recycled coarse aggregate and the amount of Lithium slag. The experimental results show that doped lithium slag axial recycled concrete long columns compression stress failure process,vertical displacement,strain of the concrete and the form of the strain steel reinforced concrete are all similar with ordinary concrete axial compression columns; with the increase of the replacement rate of recycled aggregate,the bearing capacity of the specimen increases firstly and then decreases. With the increase of the content of lithium slag,the bearing capacity of the specimen improves. Using the calculating method,the current specification of doped lithium slag axial recycled concrete long columns has better safety reserve.

关 键 词：锂渣 再生混凝土 轴压长柱 受压性能 

分 类 号：TU398.5[建筑科学—结构工程]