铜渣的粉磨特性及对水泥净浆强度的影响  

Grinding Characteristics of Copper Slag and Effecton Strength of Cement Paste

作　　者：宋军伟[1] 刘松柏 周永祥 黄华[4] 黄义雄 潘文斌 陈小妹 Song Junwei;Liu Songbai;Zhou Yongxiang;Huang Hua;Huang Yixiong;Pan Wenbin;Chen Xiaomei(School of Urban Construction,Jiangxi University of Technology,Nanchang,Jiangxi 330098;Jiangxi Institute of Industrial Research and Design of Building Materials,Nanchang,Jiangxi 330001;China Academy of Building Research Co.Ltd,Beijing 100013;China Construction Fourth Engineering Division Co.Ltd.,Guangzhou,Guangdong 510610;China Construction Commodity Concrete Nanchang Co.Ltd,Nanchang,Jiangxi 330001;Shanghai Construction Engineering Jiangxi Concrete Engineering Co.Ltd.,Nanchang,Jiangxi 330001;Jiangxi Jiangling Engineering Co.Ltd.,Nanchang,Jiangxi 330001)

机构地区：[1]江西科技学院城市建设学院,江西南昌330098 [2]江西省建筑材料工业科学研究设计院,江西南昌330001 [3]中国建筑科学研究院有限公司,北京100013 [4]中国建筑第四工程局有限公司,广东广州510610 [5]中建商品混凝土江西有限公司,江西南昌330001 [6]上海建工江西混凝土工程有限公司,江西南昌330001 [7]江铃汽车集团江西工程建设有限公司,江西南昌330001

出　　处：《江西建材》2020年第4期12-13,16,共3页Jiangxi Building Materials

基　　金：国家自然科学基金(51668021);江西省科技厅重点研发项目(20192BBHL80006);建筑安全与环境国家重点实验室暨国家建筑工程技术研究中心开放基金资助课题(BSBE2018-10);江西省教育厅项目(JXJG-19-28-4);江西科技学院校级自然课题(ZR1804)。

摘　　要：文中通过采用激光粒度仪对不同粉磨时间的铜矿渣的粒径分布进行测试,测试不同粉磨时间铜渣粉的比表面积及各等效粒径,选取粉磨120min的铜渣分等量替代0-40%普通硅酸盐水泥,测试铜渣粉复合胶凝体系3d、7d和28d时的抗压强度.结果表明:随着粉磨时间的延长,铜渣粉比表面积增加,各特征粒径减小,在粉磨过程中存在粗颗粒易磨,细颗粒难磨现象.铜渣粉复合胶凝体系抗压强度随着龄期的发展而提高,随着铜渣粉掺量的提高而降低,但这种降低趋势随着龄期的增长逐渐减缓.In this paper,the particle size distribution of copper slag at different grinding times is tested by using a laser particle size analyzer to test the specific surface area and equivalent particle sizes of copper slag powder at different grinding times.Instead of 0-40% ordinary Portland cement,test the compressive strength of copper slag powder composite gel system at 3 d,7 d and 28 d.The results show that with the prolongation of the grinding time,the specific surface area of the copper slag powder increases,and the characteristic particle diameter decreases.In the grinding process,coarse particles are easy to grind,and fine particles are difficult to grind.The compressive strength of the copper slag powder composite gelling system increases with the development of age,and decreases with the increase of the copper slag powder content,but this decrease trend gradually slows down with the increase of age.

关 键 词：铜矿渣 粉磨 比表面积 抗压强度 

分 类 号：TU525[建筑科学—建筑技术科学]