钢渣对镍渣碱激发胶凝材料抗压强度的影响  

Effect of Steel Slag on Compressive Strength of Nickel Slag Alkali-Activated Cementitious Materials

作　　者：戴硕 诸华军[2] 钱丽英 任晓健[3] 陈超 左杰 赵坤 华苏东[4] Dai Shuo;Zhu Huajun;Qian Liying;Ren Xiaojian;Chen Chao;Zuo Jie;Zhao Kun;Hua Sudong(School of Mechanical Engineering,Yancheng Institute of Technology,Yancheng,Jiangsu 224051;School of Materials Science and Engineering,Yancheng Institute of Technology,Yancheng,Jiangsu 224051;Jiangsu Yonggang Group Co.,Ltd.,Zhangjiagang,Jiangsu 215628;School of Materials Science and Engineering,Nanjing Tech University,Nanjing,Jiangsu 211816)

机构地区：[1]盐城工学院机械工程学院,江苏盐城224051 [2]盐城工学院材料科学与工程学院,江苏盐城224051 [3]江苏永钢集团有限公司,江苏张家港215628 [4]南京工业大学材料科学与工程学院,江苏南京211816

出　　处：《非金属矿》2020年第5期84-86,共3页Non-Metallic Mines

基　　金：国家自然科学基金(51502259);江苏省研究生科研与实践创新计划项目(SJCX20_1357);江苏省重点研发计划项目(BE2018697)。

摘　　要：以工业废渣镍渣和钢渣为主要原料制备碱激发胶凝材料。研究钢渣掺量对镍渣碱激发胶凝材料抗压强度的影响,结合X射线衍射(XRD)和扫描电镜(SEM)等测试方法,对碱激发反应产物的微观性能进行分析。结果表明,随着钢渣掺量的增大,镍渣碱激发胶凝材料的抗压强度逐渐增大。钢渣掺量为50%时,50℃养护7 d的风冷镍渣碱激发胶凝材料和水淬镍渣碱激发胶凝材料的抗压强度分别较未掺钢渣试样提高279.2%和73.6%。掺入钢渣使得体系碱度增大,有效促进了镍渣碱激发反应过程的进行;反应产物相互填充,体系结构的致密性改善,有利于提高胶凝材料抗压强度。Alkali-activated cementitious materials were prepared mianly by industrial waste nickel slag and steel slag.The effects of steel slag amount on the compressive strength of the nickel slag alkali-activated cementitious materials was investigated,and the micro properties of alkaliactivated products were analyzed by XRD and SEM.The results show that the compressive strength of alkali-activated cementitious materials increase with the increase of the content of steel slag.After maintaining at 50℃for 7 days,the compressive strength of air quench and water-hardening nickel slag alkali-activated cementitious materials were gained 279.2%and 73.6%growth over nickel slag cementitious materials when the dosage of steel slag was 50%.The steel slag increases the alkalinity,which promotes the reaction rate of alkali-activated.The reaction products are filled with each other,which is beneficial to the structure compactness,and then increases the compressive strength of the cementitious materials.

关 键 词：镍渣 钢渣 碱激发胶凝材料 抗压强度 

分 类 号：TQ177[化学工程—硅酸盐工业]