Abstract
Abstract: The mining industry, despite its contributions to the economy of many countries, including developing ones, has caused significant damage to the environment. In this study, gold tailings were used as a potential alternative for natural sand in brick manufacturing. The materials and bricks made from these materials were evaluated both mechanically and environmentally, through particle size distribution, water absorption, compressive strength, and leaching characteristics. The results showed that the particle size of gold tailings was less than 2 mm, with a high percentage of silicon dioxide (71.8%). The compressive strength of the bricks made from gold tailings replacements ranged from 11.67 to 22.33 MPa, with the most promising strength being in T25% replacement. In terms of environmental leaching, the study revealed that most gold tailings replacements did not show any metal leaching, and the levels of metals detected were significantly low. There fore, this study concluded that using gold tailings as a replacement for natural sand in construction industries is a viable and promising alternative. This practice can reduce the disposal of gold tailings on mine sites, contributing to a more sustainable mining industry
References
Antin, D. (2013). The South African mining sector: An industry at a crossroads. Economy Report South Africa, 1-22.
Bellenfant, G., Guezennec, A. G., Bodénan, F., d'Hugues, P., & Cassard, D. (2013, September). Re‐processing of mining waste: Combining environmental management and metal recovery?. In Mine Closure 2013 (pp. 571-582).
Xu, D. M., Zhan, C. L., Liu, H. X., & Lin, H. Z. (2019). A critical review on environmental implications, recycling strategies, and ecological remediation for mine tailings. Environmental Science and Pollution Research, 26, 35657-35669
Hooke, R. L., Martín Duque, J. F., & Pedraza Gilsanz, J. D. (2012). Land transformation by humans: a review.
Zheng, W. (2013). Analysis of the proportion of aerated concrete block materials produced by using gold tailings. Sci. Technol. Vis, 8, 24-25.
Adiansyah, J. S., Rosano, M., Vink, S., & Keir, G. (2015). A framework for a sustainable approach to mine tailings management: disposal strategies. Journal of cleaner production, 108, 1050-1062.
Wei, Z., Zhao, J., Wang, W., Yang, Y., Zhuang, S., Lu, T., & Hou, Z. (2021). Utilizing gold mine tailings to produce sintered bricks. Construction and Building Materials, 282, 122655.
Golev, A., Gallagher, L., Vander Velpen, A., Lynggaard, J. R., Friot, D., Stringer, M., ... & Franks, D. (2022). Ore-sand: A potential new solution to the mine tailings and global sand sustainability crises
Barcelos, D. A., Pontes, F. V., da Silva, F. A., Castro, D. C., Dos Anjos, N. O., & Castilhos, Z. C. (2020). Gold mining tailing: Environmental availability of metals and human health risk assessment. Journal of hazardous materials, 397, 122721.
Franks, D. M., Boger, D. V., Côte, C. M., & Mulligan, D. R. (2011). Sustainable development principles for the disposal of mining and mineral processing wastes. Resources policy, 36(2), 114-122.
Edraki, M., Baumgartl, T., Manlapig, E., Bradshaw, D., Franks, D. M., & Moran, C. J. (2014). Designing mine tailings for better environmental, social and economic outcomes: a review of alternative approaches. Journal of Cleaner Production, 84, 411-420.
Fontes, W. C., Mendes, J. C., Da Silva, S. N., & Peixoto, R. A. F. (2016). Mortars for laying and coating produced with iron ore tailings from tailing dams. Construction and Building Materials, 112, 988-995.
Shettima, A. U., Hussin, M. W., Ahmad, Y., & Mirza, J. (2016). Evaluation of iron ore tailings as replacement for fine aggregate in concrete. Construction and Building Materials, 120, 72-79.
Roy, S., Adhikari, G. R., & Gupta, R. N. (2007). Use of gold mill tailings in making bricks: a feasibility study. Waste management & research, 25(5), 475-482.
Kiventerä, J., Lancellotti, I., Catauro, M., Dal Poggetto, F., Leonelli, C., & Illikainen, M. (2018). Alkali activation as new option for gold mine tailings inertization. Journal of cleaner production, 187, 76-84.
Malatse, M., & Ndlovu, S. (2015). The viability of using the Witwatersrand gold mine tailings for brickmaking. Journal of the Southern African Institute of Mining and Metallurgy, 115(4), 321-327.
Franks, D. M., Stringer, M., Torres-Cruz, L. A., Baker, E., Valenta, R., Thygesen, K., ... & Barrie, S. (2021). Tailings facility disclosures reveal stability risks. Scientific reports, 11(1), 5353.
Ince, C. (2019). Reusing gold-mine tailings in cement mortars: Mechanical properties and socio-economic developments for the Lefke-Xeros area of Cyprus. Journal of Cleaner Production, 238, 117871
Siddique, S., & Jang, J. G. (2020). Assessment of molybdenum mine tailings as filler in cement mortar. Journal of Building Engineering, 31, 101322.
Gou, M., Zhou, L., & Then, N. W. Y. (2019). Utilization of tailings in cement and concrete: A review. Science and Engineering of Composite Materials, 26(1), 449-464.
UNEP (2019). Sand and sustainability: Finding new solutions for environmental governance of global sand resources : synthesis for policy makers. United Nations Environment Programme, Nairobi
Sverdrup, H. U., Koca, D., & Schlyter, P. (2017). A simple system dynamics model for the global production rate of sand, gravel, crushed rock and stone, market prices and long-term supply embedded into the WORLD6 model. BioPhysical Economics and Resource Quality, 2, 1-20.
Bendixen, M., Iversen, L. L., Best, J., Franks, D. M., Hackney, C. R., Latrubesse, E. M., & Tusting, L. S. (2021). Sand, gravel, and UN Sustainable Development Goals: Conflicts, synergies, and pathways forward. One Earth, 4(8), 1095-1111.
Torres, A., Simoni, M. U., Keiding, J. K., Müller, D. B., zu Ermgassen, S. O., Liu, J., ... & Lambin, E. F. (2021). Sustainability of the global sand system in the Anthropocene. One Earth, 4(5), 639-650.
Gopez, R. G. (2015). Utilizing mine tailings as substitute construction material: the use of waste materials in roller compacted concrete. Open Access Library Journal, 2(12), 1-9.
Gitari, M. W., Akinyemi, S. A., Thobakgale, R., Ngoejana, P. C., Ramugondo, L., Matidza, M., ... & Nemapate, N. (2018). Physicochemical and mineralogical characterization of Musina mine copper and New Union gold mine tailings: Implications for fabrication of beneficial geopolymeric construction materials. Journal of African Earth Sciences, 137, 218-228.
Ikotun, J., Adeyeye, R., & Otieno, M. (2022). Application of mine tailings sand as construction material–a review. In MATEC Web of Conferences (Vol. 364, p. 05008). EDP Sciences
Thomas, B. S., Damare, A., & Gupta, R. C. (2013). Strength and durability characteristics of copper tailing concrete. Construction and Building Materials, 48, 894-900.
Gupta, R. C., Mehra, P., & Thomas, B. S. (2017). Utilization of copper tailing in developing sustainable and durable concrete. Journal of Materials in Civil Engineering, 29(5), 04016274.
Fontes, W. C., Fontes, G. G., Costa, E. C. P., Mendes, J. C., Silva, G. J. B., & Peixoto, R. A. F. (2018). Iron ore tailings in the production of cement tiles: a value analysis on building sustainability. Ambiente Construído, 18, 395-412.
Méndez, D., Guzmán-Martínez, F., Acosta, M., Collahuazo, L., Ibarra, D., Lalangui, L., & Jiménez-Oyola, S. (2022). Use of tailings as a substitute for sand in concrete blocks production: gravimetric mining wastes as a case study. Sustainability, 14(23), 16285.
Malatse, M., & Ndlovu, S. (2015). The viability of using the Witwatersrand gold mine tailings for brickmaking. Journal of the Southern African Institute of Mining and Metallurgy, 115(4), 321-327.
Johansson, L., Bahrami, A., Wallhagen, M., & Cehlin, M. (2024). A comprehensive review on properties of tailings-based low-carbon concrete: Mechanical, environmental, and toxicological performances. Developments in the Built Environment, 100428.
Sigvardsen, N. M., Nielsen, M. R., Potier, C., Ottosen, L. M., & Jensen, P. E. (2018). Utilization of mine tailings as partial cement replacement. Modern Environmental Science and Engineering, 4(4), 365-374.
Ahmari, S., & Zhang, L. (2013). Durability and leaching behavior of mine tailings-based geopolymer bricks. Construction and building materials, 44, 743-750.
Preethi, A. V., Rajendra, S., & Navneeth, P. K. L. (2017). Studies on gold ore tailings as partial replacement of fine aggregates in concrete. Int. J. Latest. Technol. Eng. Manag. Appl. Sci, 6(IV), 30-33
Muttaqii, M. A., Amin, M., Handoko, A. S., Birawidha, D. C., Isnugroho, K., Hendronursito, Y., ... & Syafriadi, S. (2020, April). The characterization and physical properties of paving block products over basalt minerals. In AIP Conference Proceedings (Vol. 2232, No. 1). AIP Publishing.