Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/85416
Título: | Mechanical behavior of a mine tailing stabilized with a sustainable binder |
Autor(es): | Manaviparast, Hamid Reza Pinheiro, João Najafi, Elmira Khaksar Abreu, Cláudia Araújo, Nuno Cristelo, Nuno Miranda, Tiago |
Palavras-chave: | Mine tailing Alkaline activation Fly ash Triaxial test |
Data: | 23-Mar-2023 |
Editora: | Multidisciplinary Digital Publishing Institute |
Revista: | Applied Sciences |
Citação: | Manaviparast, H.R.; Pinheiro, J.; Najafi, E.K.; Abreu, C.; Araújo, N.; Cristelo, N.; Miranda, T. Mechanical Behavior of a Mine Tailing Stabilized with a Sustainable Binder. Appl. Sci. 2023, 13, 4103. https://doi.org/10.3390/app13074103 |
Resumo(s): | Mining is a primary sector for the national economy of many countries, but exploiting these natural resources causes negative impacts on the environment. Tailings produced during mining, called mine tailings, have to be disposed of, and for that purpose, they are often mixed with Portland cement to control environmental toxicity and improve their mechanical properties. However, the high environmental impacts of producing Portland cement are well known. In this sense, sustainable binders based on the alkaline activation of industrial wastes have been studied as an alternative to using Portland cement. This study focused on applying a sustainable binder based on the alkaline activation of fly ash to improve the mechanical performance of a mine tailing from a mine located in Portugal. Geotechnical tests and chemical analysis were conducted to characterize the mine tailing and fly ash used in the alkaline activation process. In addition, triaxial tests were performed to evaluate the mechanical performance of the specimens, with both natural and stabilized tailings. The developed study proved that stabilized tailing with activated fly ash shows promising mechanical performance showing that this approach can be an excellent alternative to using Portland cement. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/85416 |
DOI: | 10.3390/app13074103 |
e-ISSN: | 2076-3417 |
Versão da editora: | https://www.mdpi.com/2076-3417/13/7/4103 |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: | ISISE - Artigos em Revistas Internacionais |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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applsci-13-04103.pdf | 7,78 MB | Adobe PDF | Ver/Abrir |
Este trabalho está licenciado sob uma Licença Creative Commons