Preparation and Performance of Concrete for Mine Restoration Containing Vanadium-Titanium Magnetite Tailings
WANG Changlong1, FU Xingshuai1, YANG Caixia2,*, ZHANG Kaifan3, BAI Yunyi1, LU Lu1, GAO Zhanxiu1, ZHENG Yongchao4, LIU Zhibing1, ZHAI Yuxin5, LIU Feng5
1 Hebei Province Key Laboratory for Low-Carbon Construction and Resilience Enhancement of Construction Engineering, School of Civil Engineering, Hebei University of Engineering, Handan 056038, Hebei, China 2 The First Geological Brigade, Hebei Geology and Mineral Resources Exploration Bureau, Handan 056001, Hebei, China 3 Jiangxi Provincial Key Laboratory of Low-Carbon Processing and Utilization of Strategic Metal Mineral Resources, School of Resources and Environmental Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, Jiangxi, China 4 State Key Laboratory of Solid Waste Reuse for Building Materials, Beijing Building Materials Academy of Science Research, Beijing 100041, China 5 China Railway Construction Group Co.,Ltd., Beijing 100040, China
Abstract: Improving the utilization rate of vanadium-titanium magnetite waste in concrete can not only reduce the dependence on cement and natural sand and gravel, but also cut down a large amount of waste residue storage, meanwhile, realize "waste treatment" if applied to mine ecological restoration projects such as slope stabilization and reinforcement. In this work, composite cementitious materials were prepared by using vanadium-titanium iron ore tailings powder as mineral admixture, while vanadium-titanium iron ore tailings waste rock and vanadium-titanium iron ore tailings sand were used as coarse and fine aggregates to prepare C40 pre-mixed concrete. Then the workability, durability, and environmental safety of the pre-mixed concrete were investigated. The results show that:with the increase of vanadium and titanium iron ore tailing powder, the mid-early strength of pre-mixed concrete decreases, but the 28 day compressive strength of pre-mixed concrete shows a tendency of increasing and then decreasing. By optimizing the cementitious material ratio of cement, the concrete with a water-cement ratio of 0.4 and the mass ratio of cement, fly ash, slag powder, vanadium-titanium iron ore tailing powder is 47∶8∶26∶19 has a similar cementitious block strength index to that of ordinary cement, and its working indexes reach the standards. There is no clear correlation between the durability index and the strength, and the mix ratio should be adjusted according to the applicable environment of concrete. The leaching of heavy metals increases with the increase of vanadium-titanium-iron tailings powder.
1 Lv X D, Shen W G, Wang L, et al. Journal of Cleaner Production, 2019, 211, 704. 2 Mistri A, Illikainen M, Perumal P. Journal of Materials in Civil Engineering, 2024, 36(5), 16678. 3 Han F H, Song S M, Liu J H, et al. Powder Technology, 2019, 345, 292. 4 Liu M, Xu L H, Di Y P, et al. Metal Mine, 2008(7), 144 (in Chinese). 刘明, 徐利华, 邸云萍, 等. 金属矿山, 2008(7), 144. 5 Yu H X, Zahidi I, Fai C M. Environmental Research, 2023, 223, 116336. 6 Jiang Y F, Wang H, Chen Y, et al. Material in Technology, 2019, 53(4), 467. 7 Zhao J S, Ni K, Su Y P, et al. Construction and Building Materials, 2021, 286, 122968. 8 Zhang W F, Gu X W, Qiu J P, et al. Construction and Building Materials, 2020, 260, 119917. 9 Wang C L, Zhao G F, Zheng Y C, et al. Journal of New Materials for Electrochemical Systems, 2019, 22(4), 217. 10 Li J J, Wang C Z, Ni W, et al. Materials, 2022, 12(2), 246. 11 Zhang Y N, Dong M W, Zhang W J, et al. Materials, 2022, 15(15), 5162. 12 Zhang Y N, Yang D K, Gu X W, et al. Materials, 2022, 15(11), 3866. 13 Wang C L, Ma J T, Yang F H, et al. Iron Steel Vanadium Titanium, 2023, 44(1), 98 (in Chinese). 王长龙, 马锦涛, 杨丰豪, 等. 钢铁钒钛, 2023, 44(1), 98. 14 Wang C L, Jing J L, Qi Y, et al. Iron Steel Vanadium Titanium, 2023, 44(3), 105 (in Chinese). 王长龙, 荆牮霖, 齐洋, 等. 钢铁钒钛, 2023, 44(3), 105. 15 Cui X W, Ni W, Geng B Y, et al. Chinese Journal of Engineering, 2018, 40(6), 658 (in Chinese). 崔孝炜, 倪文, 耿碧瑶, 等. 工程科学学报, 2018, 40(6), 658. 16 Lin X R. Study on preparation of pre-mixed concrete from vanadium-titanium iron ore tailings as minerals admixture. Master's Thesis, Hebei University of Engineering, China, 2020 (in Chinese). 吝晓然. 钒钛铁尾矿微粉作为掺合料制备预拌混凝土的研究. 硕士学位论文, 河北工程大学, 2020. 17 Ogirigbo O R, Black L. Construction and Building Materials, 2017, 149, 816. 18 Zhang J, Shi C J, Zhang Z H, et al. Construction Building Materials, 2017, 152, 598. 19 Powers T C. Portland Cement Association Highway Research Board, 1975, 29(8), 184. 20 Zhu H, Hu Y, Ma R, et al. Construction and Building Materials, 2021, 283, 122762. 21 Chang J J, Yeih W C, Huang R, et al. Journal of the Chinese Institute of Engineers, 2003, 26(4), 513. 22 Zajac M, Irbe L, Bullerjahn F, et al. Cement and Concrete Research, 2022, 152, 106687. 23 Chang H L, Wang Y F, Wang X L, et al. Construction and Building Materials, 2022, 324, 126639. 24 Metalssi O O, Aït-Mokhtar A, Turcry P, et al. Construction and Building Materials, 2012, 34, 218. 25 Morandeau A, Thiery M, Dangla P. Cement and Concrete Research, 2014, 56, 153. 26 Wei Y, Cao S J, Wang H, et al. Arabian Journal for Science and Engineering, 2023, 48, 13211. 27 Dias Andrade H, Franco de Carvalho M J, Barbosa Costa L C, et al. Construction and Building Materials, 2021, 298, 123910. 28 Ali Siyal A, Rashid Shamsuddin M, Irfan Khan M, et al. Journal of Environmental Management, 2018, 224, 327. 29 Gougar M L D, Scheetz B E, Roy D M. Waste Management, 1996, 16(4), 295. 30 Guo B, Liu B, Yang J, et al. Journal of Environmental Management, 2017, 193, 410.
渝公网安备50019002502923号 版权所有：《材料导报》编辑部
2025, Vol. 39 
