| INORGANIC MATERIALS AND CERAMIC MATRIX COMPOSITES |
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| Preparation and Properties of Cemented Paste Backfill Material Containing Mining and Metallurgical Solid Waste |
| LI Xiaozhan1, ZHANG Hongze2, ZHANG Suhua3,4, LI Xin4, WANG Changlong4,*, CHEN Jingliang4, ZHAI Yuxin5, JING Jianlin4, MA Jintao4, PING Haoyan4, ZHENG Yongchao6
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1 National Engineering Research Center for Advanced Rolling and Intelligent Manufacturing, University of Science and Technology Beijing, Beijing 100083, China
2 School of Earth Science and Surveying and Mapping, China University of Mining and Technology (Beijing), Beijing 100083, China
3 Handan Jianye Construction Engineering Quality Inspection Co., Ltd., Handan 056000, Hebei, China
4 School of Civil Engineering, Hebei University of Engineering, Handan 056038, Hebei, China
5 Technical Center, China Railway Construction Group Co., Ltd., Beijing 100040, China
6 State Key Laboratory of Solid Waste Reuse for Building Materials, Beijing Building Materials Academy of Science Research, Beijing 100041, China |
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Abstract Steel slag and vanadium-titanium slag were used as the main raw materials to prepare cementing agent, and then mine cemented paste backfill material was prepared by cementing agent and vanadium-titanium iron ore tailings. The properties of cemented paste backfill material, and the composition and structure of hydration products in the cementing agent were investigated by means of mechanical properties, X-ray diffraction (XRD), scanning electronic microscopy (SEM), fourier transform-infrared spectroscopy (FTIR). The results showed that when the mass percentage of steel slag and vanadium-titanium slag was 13∶12, and the mass ratio of steel slag/vanadium titanium slag, phosphogypsum, dicyandiamide waste slag, composite phosphoric acid, and cement clinker in the cementing agent was 84∶3.6∶5.4∶4.2∶2.8, the binder to sand ratio of cemented paste backfill material was 1∶4, the slurry concentration was 80%, and the dosage of water reducing agent was 0.178%, the slump was 214 mm, and the 28-day flexural strength and 28-day compressive strength of cemented paste backfill material reached 4.04 MPa and 8.31 MPa respectively, which meet the requirements of GB/T 39489-2020 Technical Specification for the Total Tailing Paste backfill. XRD and SEM analysis show that the hydration product in the cementing agent is mainly ettringite (AFt). The existence of phosphogypsum promotes the formation of AFt, and AFt further promotes the fracture of [AlO4]5- and [SiO4]4- along the bridge oxygen in vanadium-titanium slag and steel.
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Published: 25 April 2023
Online: 2023-04-24
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| Fund:National Key Research and Development Program of China (2021YFC1910605), the Natural Science Foundation of Hebei Province (E2020402079), Major Science and Technology Project of Hebei Province (21283804Z), State Key Laboratory of Solid Waste Resource Utilization and Energy Conservation (SWR-2023-007), Science and Technology Research and Development Plan of China Railway Construction Group Co., Ltd.,(22-14b, 22-11b), and Handan Science and Technology Research and Development Program (21422111260). |
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1 Wang C L, Zhang K F, Zuo W, et al. Materials Reports B:Research Papers, 2020, 34(12), 24034 (in Chinese).
王长龙, 张凯帆, 左伟, 等.材料导报:研究篇,2020, 34(12), 24034.
2 Ghirian A, Fall M. International Journal of Mining Science and Technology, 2016, 26(5), 809.
3 Deng D Q, Liu L, Yao Z L, et al. Journal of Environmental Management, 2017, 196, 100.
4 Su L, Zhang X H. Mining and Metallurgical Engineering, 2013, 33(3), 117.
5 Yilmaz E, Belem T, Benzaazoua M. Engineering Geolegy, 2014, 168, 23.
6 Li W C, Fall M. Construction and Building Materials, 2016, 106, 297.
7 Yilmaz E, Belem T, Bussière B, et al. Construction and Building Ma-terials, 2015, 75, 99.
8 Yilmaz T, Ercikdi B, Karaman K,et al. Ultrasonics, 2014, 54(5), 1386.
9 Ke X, Hou H B, Zhou M, et al. Construction and Building Materials, 2015, 96, 378.
10 Li W, Zhou X, Liao M Q, et al. Minning Technology, 2011, 11(3), 19.
11 Peyronnard O, Benzaazoua M. Minerials Engineering, 2012, 29, 28.
12 Zhang J W, He W D, Ni W, et al. Chemical Engineering Transactions, 2016, 51, 1039.
13 Cihangir F, Akyol Y. International Journal of Mining, Reclamation and Environment, 2018, 32(2), 123.
14 Li Y C, Min X B, Ke Y, et al. Journal of Hazardous Materials, 2018, 34, 343.
15 Zhang Q L, Ji T, Yang Z X, et al. Construction and Building Materials, 2020, 235, 117449.
16 Wu Q S, Wu Y, Tong W H, et al. Construction and Building Materials, 2018, 193, 426.
17 Jiang L H, Li C Z, Wang C, et al. Journal of Cleaner Production, 2018, 205, 589.
18 Ashrit S, Chatti R V, Udpa K N, et al. MOJ Mining and Metallurgy, 2017, 1(1), 1.
19 Zhao J H, Wang D M, Yan P Y, et al. Construction and Building Mate-rials, 2016, 113, 835.
20 Duan S Y, Liao H Q, Cheng F Q, et al. Construction and Building Materials, 2018, 187, 1113.
21 Cho B, Choi H. Construction and Building Materials, 2016, 123, 436.
22 Zhang G Q, Wu P C, Gao S J, et al. Acta Microscopica, 2019, 28(4), 770.
23 Zhang G Q, Wu P C, Gao S J, et al. Acta Microscopica, 2019, 28(5), 961.
24 Mason B. Journal of Iron and Steel Institute, 1994, 11, 69.
25 Huo B B, Li B L, Chen C, et al. Construction and Building Materials, 2021, 307, 125004.
26 Wang F, Zheng Q Q, Zhang G Q, et al. Journal of New Materials for Electrochemical Systems, 2020, 23(1), 52.
27 Wang C L, Ren Z Z, Huo Z K, et al. Alexandria Engineering Journal, 2021, 60(6), 4961.
28 Fisher L V, Barron A R. Resources, Conservation and Recycling, 2019, 146, 244.
29 Huo B B, Li B L, Huang S Y, et al. Construction and Building Mate-rials, 2020, 254, 119319.
30 Huo B B, Li B L, Chen C, et al. Journal of the Chinese Ceramic Society, 2021, 49(5), 948 (in Chinese).
霍彬彬, 李保亮, 陈春, 等.硅酸盐学报, 2021, 49(5), 948.
31 Bensted J, Barnes P. Structure and performance of cements, second ed., Spon Press, US, 2002, pp. 201.
32 Wang C L, Ni W, Zhang S Q, et al. Construction and Building Mate-rials, 2016, 104, 109.
33 Wang S, Wang C L, Wang Q H, et al. Polish Journal of Environmental Studies, 2018, 27(1), 357.
34 Li N, Farzadnia N, Shi C J. Cement and Concrete Research, 2017, 100, 214.
35 Wu M, Zhang Y S, Jia Y T, et al. Journal of Cleaner Production, 2019, 220, 677.
36 Cui X W, Ni W, Ren C. Chinese Journal of Materials Research, 2017, 31(9), 687 (in Chinese).
崔孝炜, 倪文, 任超.材料研究学报, 2017, 31(9), 687.
37 Li Y, Qiao C Y, Ni W. Journal of Cleaner Production, 2020, 269, 122212.
38 Gao S J, Ni W, Zhu L P, et al. Journal of Central South University (Science and Technology), 2013, 44(6), 2259 (in Chinese).
高术杰, 倪文, 祝丽萍, 等.中南大学学报(自然科学版), 2013, 44(6), 2259. |
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2023, Vol. 37 
