Study on Mechanical Properties of Waste Gangue-BasedBackfill Material for TBM ‎Lining in Coal Mines

  • Authors

    • Mutambo Simon School of Civil Engineering, Anhui University of Science and Technology
    • Tang Bin School of Civil Engineering, Anhui University of Science and Technology
    • Wang Yaoping Huainan Mining Industry (Group) Co., Ltd
    • Cao Junqi Huainan Mining Industry (Group) Co., Ltd
    • Zhu Xiuliang Huainan Mining Industry (Group) Co., Ltd
    https://doi.org/10.14419/hpsew951

    Received date: December 4, 2025

    Accepted date: January 26, 2026

    Published date: February 12, 2026

  • Waste Gangue; Solid Waste Backfilling; Compressive Strength; Backfill Material; Mechanical ‎Properties

  • Abstract

    This study prepares backfill material for TBM segment lining using waste gangue as coarse ‎aggregate combined with cement mixed slurry. The research explores the variation in uniaxial ‎compressive strength under three curing periods (1d, 7d, 14d) with different water-cement ‎ratios and admixture proportions. Results show that waste gangue-modified bean gravel as ‎coarse aggregate extends the compaction stage, imparts good ductility, and significantly ‎improves compressive strength. Compressive strength increases steadily with extended curing ‎time. When admixtures are added in specific proportions, they effectively enhance early ‎strength and further increase peak compressive strength, achieving early strength and high ‎strength effects. After mixing with slurry, waste gangue forms an interactive reinforcement ‎effect through three key processes: gangue interlocking, bonding reinforcement, and ‎cementation solidification. During material compaction, the stress-strain curve sequentially ‎undergoes three stages: pore compaction, slip adjustment, and fracture reconstruction‎.

  • References

    1. Behera, S. K., Mishra, D. P., Singh, P., Mandal, S. K., Ghosh, C. N., & Buragohain, P. (2021). Utilization of mill tailings, fly ash and slag as mine paste backfill material: Review and future perspective. Construction and Building Materials, 309, 125120.
    2. Bian, Z., Lei, S., Chen, S., Wang, W., & Struthers, S. (2012). The challenges of reusing mining and mineral-processing wastes. Science, 337(6095), 702–703. https://doi.org/10.1126/science.1224757.
    3. Cao, S., Song, W., & Yilmaz, E. (2021). Creep behavior and damage evolution of cemented gangue-fly ash backfill under uniaxial compression. Journal of Materials Research and Technology, 15, 2342–2355.
    4. Fall, M., Celestin, J. C., & Han, F. (2020). A contribution to understanding the effects of curing temperature on the mechanical properties of mine cemented tailings backfill. Engineering Geology, 265, 105350.
    5. Guo, Y., Zhang, Y., Wang, J., & Li, H. (2022). Pore structure evolution of gangue concrete under axial compression based on NMR. Construction and Building Materials, 314, 125636.
    6. Li, J., Yilmaz, E., & Cao, S. (2022). Influence of solid content, cement/tailings ratio, and curing time on rheological and mechanical properties of cemented tailings backfill. International Journal of Mining, Reclamation and Environment, 36(3), 193–210.
    7. Ministry of Housing and Urban-Rural Development of the People's Republic of China. (2019). Standard for test methods of concrete physical and mechanical properties (GB/T 50081-2019). China Architecture & Building Press.
    8. Zhang, J., Liu, Z., & Ma, L. (2021). A systematic review of paste technology in metal mines for cleaner production in China. Journal of Cleaner Production, 278, 123293.
    9. Zhang, J., Zhang, Q., Sun, Q., Gao, R., & Li, W. (2021). Microstructural and mechanical properties of gangue-based paste backfill material. Journal of Cleaner Production, 278, 123366.

  • Downloads

  • How to Cite

    Simon, M. ., Bin, T. ., Yaoping , W. ., Junqi , C. ., & Xiuliang , Z. . (2026). Study on Mechanical Properties of Waste Gangue-BasedBackfill Material for TBM ‎Lining in Coal Mines. International Journal of Basic and Applied Sciences, 15(2), 1-6. https://doi.org/10.14419/hpsew951