摘要
以锰尾矿渣作为主要原料来制备海绵城市透水砖,可以变废为宝。通过研究发现,MgO作烧结助剂制备的透水砖,抗压强度低,透水性能好;CaO作烧结助剂制备的透水砖抗压强度高,透水性能低;透水砖气孔率和透水性随着CaCO_(3)的加入量增多而升高,但是抗压强度相反。三种不同烧结助剂掺比,3%CaCO_(3)和2%MgO作烧结助剂制备的透水砖透水性能好,抗压强度也比较优越。3%CaCO_(3)和2%MgO作烧结助剂制备的透水砖透水系数为2.0×10^(-2)cm/s,抗压强度为1.3MPa。
Turned from waste to treasure,manganese tailing slag is used as the chief raw material to prepare permeable bricks for sponge cities.It is found that the permeable bricks prepared by MgO as sintering additives have low compressive strength and good water permeability;the permeable bricks prepared by CaO as sintering additives have high compressive strength and low water permeability;the porosity and water permeability of permeable bricks increase with the addition of CaCO_(3),but the compressive strength is opposite.The permeable bricks prepared with 3% CaCO(3) and 2% MgO as sintering additives had good permeability with permeability coefficient of 2.0×10^(-2)cm/s,and superb compressive strength of 1.3MPa.
作者
巫嘉伟
杨雪晴
宋杰光
钟璐
孙大优
向芸
罗德平
陈平
WU Jia-wei;YANG Xue-qing;SONG Jie-guang;ZHONG Lu;SUN Da-you;XIANG Yun;LUO De-ping;CHEN Ping(Sponge City Research Institute,Pingxiang University,Pingxiang,Jiangxi 337055;Jiangxi Pingxiang Longfa Enterprise Co.,Ltd.,Pingxiang,Jiangxi 337022;Guangxi Key Laboratory of New Energy and Energy Conservation in Buildings,Guilin University of Technology,Guilin,Guangxi 541004,China)
出处
《萍乡学院学报》
2021年第6期103-106,共4页
Journal of Pingxiang University
基金
江西省科技重点研发计划项目(20202BBGL73114)
江西省教育厅科技重点项目(GJJ202701)
江西省大学生创新实训项目(S202110895016)
萍乡市工业支撑项目(PXST2019-13)。
关键词
海绵城市
透水砖
烧结助剂
锰尾矿
透水系数
sponge city
permeable brick
sintering additives
manganese tailings
permeability coefficient
作者简介
巫嘉伟(1999-),男,江西赣州人,无机非金属材料工程专业2018级本科学生;通信作者:杨雪晴(1989-),女,湖北孝感人,助教,硕士,研究方向:固废资源化技术研究,E-mail:787264278@qq.com。
