•  
  •  
 

Corresponding Author

金生吉, 男, 博士, 教授. E-mail: shengjijin@sut.edu.cn

Abstract

Steel slag and iron tailings are typical industrial solid waste.Their large-scale stockpiling occupies a significant amount of land and has a negative impact on the environment.To respond to the Guiding Opinions on the Comprehensive Utilization of Bulk Solid Waste in the 14th Five Year Plan and expand the use of steel slag powder and iron tailings sand as concrete admixtures and aggregates,this study prepared steel slag powder-cement-based self-compacting iron tailings mortar.The workability index of mortar was determined through two tests:the flow expansion test and the V-shaped funnel test.Additionally,the compressive strength of the mortar was measured using a servo press.The results show that as the replacement rate (Rs) of steel slag powder increases,the flow expansion (e) of the mortar increases,the V-shaped funnel time (Tv) decreases,and the compressive strength (fcu) decreases.Steel slag powders of 300 mesh and 100 mesh show an increase in e by 13.5% and 18.7% and a decrease in Tv by 24.3% and 29.7%,respectively,at Rs=40% compared to Rs=0.The fcu of the three age groups (3 d,28 d,and 90 d) of the two kinds of steel slag powders decreases by 33.0%,34.3%,and 20.0% and 43.0%,40.2%,and 29.3%,respectively.As the replacement rate (Ri) of iron tailings sand increases,e decreases,Tv increases,and fcu first increases and then decreases.Graded iron tailings sand and natural iron tailings sand show a decrease of 14.5% and 31.0% in e and an increase of 31.9% and 52.2% in Tv,respectively,at Ri=40% compared to Ri=0.The Ri corresponding to the peak fcu is 30% and 10%,respectively.Finally,the prediction formulas for compressive strength at the three ages were provided.Validation shows that the predicted compressive strengths agree well with the experimental results,demonstrating the feasibility of the proposed formulas.

Publication Date

12-24-2025

DOI

10.14048/j.issn.1671-2579.2025.06.012

First Page

102

Last Page

110

Submission Date

December 2025

Reference

[1]王吉凤,付恒毅,闫晓彤,等.钢渣综合利用研究现状 [J].中国有色冶金,2021,50(6):77-82.WANG Jifeng,FU Hengyi,YAN Xiaotong,et al.Research status of comprehensive utilization of steel slag [J].China Nonferrous Metallurgy,2021,50(6):77-82.
[2]SHENG G H,LI C,JIN S J,et al.Effects of steel slag powder as a cementitious material on compressive strength of cement-based composite [J].Minerals,2023,13(7):869.
[3]赵计辉,张大旺,赵世娇,等.钢渣粉的胶凝性及其对水泥力学性能的影响 [J].科学技术与工程,2015,15(17):222-226,241.ZHAO Jihui,ZHANG Dawang,ZHAO Shijiao,et al.Cementitious property of steel slag powder and impact on mechanical property of cement [J].Science Technology and Engineering,2015,15(17):222-226,241.
[4]SHI C J.Steel slag:Its production,processing,characteristics,and cementitious properties [J].ChemInform,2005,36(22):230-236.
[5]陈斐,王燕春,杜素军.激发剂对钢渣粉水泥土抗压强度影响研究 [J].中外公路,2023,43(3):244-247.CHEN Fei,WANG Yanchun,DU Sujun.Effect of activator on compressive strength of steel slag powder cement soil [J].Journal of China & Foreign Highway,2023,43(3):244-247.
[6]国家发展和改革委员会，科学技术部，工业和信息化部，等.关于“十四五”大宗固体废弃物综合利用的指导意见[R].北京:国家发展和改革委员会,2021.National Development and Reform Commission,Ministry of Science and Technology of the People ’s Republic of China,Ministry of Industry and Information Technology of the People ’s Republic of China,et al.Guiding opinions on comprehensive utilization of bulk solid waste during the 14th Five Year Plan Period [R].Beijing:National Development and Reform Commission, 2021.
[7]陈伟,俞海明,李倩,等.新疆钢渣在水稳基层中的试验应用研究 [J].中外公路,2023,43(3):226-230.CHEN Wei,YU Haiming,LI Qian,et al.Study on experimental application of Xinjiang steel slag in cement stabilized base [J].Journal of China & Foreign Highway,2023,43(3):226-230.
[8]万田宝.水泥稳定钢渣碎石基层力学特性及微观分析 [J].中外公路,2023,43(3):248-252.WAN Tianbao.Mechanical properties and micro analysis of cement stabilized steel slag macadam base [J].Journal of China & Foreign Highway,2023,43(3):248-252.
[9]SHENG G H,JIN S J,LI C,et al.Compressive-tensile mechanics and energy consumptions of a cementitious composite with high utilization of steel slag [J].KSCE Journal of Civil Engineering,2023,27(3):1236 -1248.
[10]马麟涛,盛国华,王肖宇,等.超高掺量钢渣水泥基复合材料抗压试验研究 [J].混凝土,2022 (8):102-104，124.MA Lintao,SHENG Guohua,WANG Xiaoyu,et al.Experimental study on the compressive strength of cement-based composites with super high volume of steel slag [J].Concrete，2022 (8):102-104，124.
[11]王强,黎梦圆,石梦晓.水泥 ‒钢渣 ‒矿渣复合胶凝材料的水化特性 [J].硅酸盐学报,2014,42(5):629-634.WANG Qiang,LI Mengyuan,SHI Mengxiao.Hydration properties of cement-steel slag-ground granulated blast furnace slag complex binder [J].Journal of the Chinese Ceramic Society,2014,42(5):629-634.
[12]SHENG G H,JIN S J,LI C,et al.Uniaxial compressive stress-strain behavior of alkali activated steel slag powder-based reactive powder concrete (SSP-RPC ) [J].Construction and Building Materials,2024,453:139038.
[13]杨建祥,曾三海,郑正旗,等.超细钢渣粉对硅酸盐水泥浆体流变性能的影响 [J].硅酸盐通报,2020,39(8):2508 -2514，2566.YANG Jianxiang,ZENG Sanhai,ZHENG Zhengqi,et al.Influence of superfine steel slag powder on Portland cement paste rheological properties [J].Bulletin of the Chinese Ceramic Society,2020,39(8):2508 -2514，2566.
[14]乔波,于晓兵,陶东平,等.铁尾矿资源高效利用路径探析[J].黄金,2023,44(4):38-43.QIAO Bo,YU Xiaobing,TAO Dongping,et al.Exploration of effective utilization paths for iron tailings resources [J].Gold,2023,44(4):38-43.
[15]王海军,王伊杰,李文超,等.《全国矿产资源节约与综合利用报告 (2019 )》[J].中国国土资源经济,2020,33(2):2.WANG Haijun,WANG Yijie,LI Wenchao,et al.The report of mineral resources saving & comprehensive utilization in China (2019 ) [J].Natural Resource Economics of China,2020,33(2):2.
[16]符算子,李红岩.机制砂自密实混凝土路面疲劳损伤影响因素分析 [J].中外公路,2025,45(4):68-76.FU Suanzi,LI Hongyan.Factors influencing fatigue damage in manufactured sand-based ecological self-compacting concrete pavement [J].Journal of China & Foreign Highway,2025,45(4):68-76.
[17]侯芮,陈四利,马啸,等.铁尾矿砂水泥复合土的力学性能研究[J].中外公路,2019,39(1):206-209.HOU Rui,CHEN Sili,MA Xiao,et al.Research on mechanical properties of iron tailings composite cemented soil [J].Journal of China & Foreign Highway,2019,39(1):206-209.
[18]张智豪,李波,李鹏,等.改良铁尾矿用于道路基层材料的研究[J].中外公路,2018,38(3):274-278.ZHANG Zhihao,LI Bo,LI Peng,et al.Application research on iron tailings as road base materials [J].Journal of China & Foreign Highway,2018,38(3):274-278.
[19]黄泽轩,侯义辉,宋少民.铁尾矿微粉对混凝土收缩及耐久性能的影响 [J].混凝土,2020 (5):56-59.HUANG Zexuan,HOU Yihui,SONG Shaomin.Effect of iron tailings powder on shrinkage and durability of concrete [J].Concrete,2020 (5):56-59.
[20]任银汉,汪秀石,李周,等.铁尾矿砂自密实水泥基材料性能研究 [J].低温建筑技术,2015,37(4):1-4.REN Yinhan,WANG Xiushi,LI Zhou,et al.Study on properties of self-compacting cement based materials of iron tailings [J].Low Temperature Architecture Technology,2015,37(4):1-4.
[21]王营,顾晓薇,张延年,等.铁尾矿砂水泥砂浆抗压强度及微观结构分析 [J].金属矿山,2022 (1):60-64.WANG Ying,GU Xiaowei,ZHANG Yannian,et al.Analysis of compressive strength and microstructure of iron tailings sand cement mortar [J].Metal Mine,2022 (1):60-64.
[22]LANG W L,XIE Q,CHEN W W,et al.Splitting behavior of polyvinyl alcohol fiber reinforced iron ore tailings concrete[J].Case Studies in Construction Materials,2024,21:e03839.
[23]DE MATOS P R,DOERNER G,DA SILVA NAZÁRIO S,et al.Limestone calcined clay cements (LC³) produced with iron ore tailings and ceramic waste:Hydration,mechanical performance and rheology [J].Construction and Building Materials,2025,458:139604.
[24]WANG C H,JI Y C,QIE R H,et al.Mechanical performance investigation on fiber strengthened recycled iron tailings concrete [J].Case Studies in Construction Materials,2024,20:e02734.
[25]宁宝宽,徐永泽,崔琨,等.铁尾矿砂混凝土的应力 ‒应变全曲线特性 [J].沈阳工业大学学报,2021,43(5):573-578.NING Baokuan,XU Yongze,CUI Kun,et al.Stress-strain full curve characteristics of iron tailing sand concrete [J].Journal of Shenyang University of Technology,2021,43(5):573-578.
[26]卢佳涛,孔丽娟,樊子瑞,等.铁尾矿砂 ‒地聚物复合材料的界面与性能 [J].建筑材料学报,2022,25(6):585-590，606.LU Jiatao,KONG Lijuan,FAN Zirui,et al.Interface and performance of iron tailings-geopolymer composites [J].Journal of Building Materials,2022,25(6):585-590，606.

Download

Share

COinS