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Evaluation of mine tailings' potential as supplementary cementitious materials based on chemical, mineralogical and physical characteristics
Indexado
WoS WOS:000512310800072
Scopus SCOPUS_ID:85075736412
DOI 10.1016/J.WASMAN.2019.11.037
Año 2020
Tipo artículo de investigación

Citas Totales

Autores Afiliación Chile

Instituciones Chile

% Participación
Internacional

Autores
Afiliación Extranjera

Instituciones
Extranjeras


Abstract



In order to reduce emissions of CO2 from cement production and avoid severe environmental pollution from the deposition of mine waste, this study investigated the possibility of utilizing mine tailings as supplementary cementitious materials (SCM) for partially replacement of cement in concrete. This study provides a characterization study of mine tailings to evaluate their potential for contributing chemically or physically as SCM. 13 mine tailing samples were characterized in regards to chemical composition (XRF, Loss on Ignition, CaCO3 and pH), mineralogical content (XRD) and physical characteristics (Grain size distribution, Specific Surface Area, SEM-analysis). The characterization study showed five mine tailings to possess potential chemical contribution as SCM based on their chemical composition (SiO2, Al2O3, Fe2O3 and CaO) and amorphous content. Three mine tailings showed potential physical contribution as SCM based on grain size and grain morphology. The remainder mine tailing characteristics suggest that their potential as SCM may be improved by pretreatment such as milling and/or thermal treatment. (C) 2019 Elsevier Ltd. All rights reserved.

Revista



Revista ISSN
Waste Management 0956-053X

Métricas Externas



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Disciplinas de Investigación



WOS
Environmental Sciences
Engineering, Environmental
Scopus
Waste Management And Disposal
SciELO
Sin Disciplinas

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Publicaciones WoS (Ediciones: ISSHP, ISTP, AHCI, SSCI, SCI), Scopus, SciELO Chile.

Colaboración Institucional



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Autores - Afiliación



Ord. Autor Género Institución - País
1 Simonsen, Anne Mette T. Mujer Tech Univ Denmark - Dinamarca
Danmarks Tekniske Universitet - Dinamarca
Technical University of Denmark - Dinamarca
2 Jensen, Pernille E. Mujer Geol Survey Finland GTK - Finlandia
Tech Univ Denmark - Dinamarca
Geologian Tutkimuskeskus - Finlandia
Danmarks Tekniske Universitet - Dinamarca
Technical University of Denmark - Dinamarca
3 Hansen, Henrik K. Hombre Universidad Técnica Federico Santa María - Chile
4 Jensen, Pernille E. Mujer Geol Survey Finland GTK - Finlandia
Tech Univ Denmark - Dinamarca
Geologian Tutkimuskeskus - Finlandia
Danmarks Tekniske Universitet - Dinamarca
Technical University of Denmark - Dinamarca

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Financiamiento



Fuente
Academy of Finland
Civil Engineering of Technical University of Denmark
Hudson Resources Inc

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Agradecimientos



Agradecimiento
This paper is an outcome of 8 student projects conducted at the Department of Civil Engineering of Technical University of Den-mark supervised by Pernille E. Jensen. The authors would therefore like to thank N. E. Buchholdt, M. N. Fugl, J. Nielsen, M. R. Nielsen, L. F. Thunbo, M. P. Sorensen, M. O. Sorensen, C. Potier and N. C. Orum-Nielsen for their time and effort in the lab, producing a big part of the data for this article. The mine companies of Arctic Mining, Codelco, Sibelco Nordic Oy Ab, Hudson Resources Inc, Nussir ASA, Tanbreez and Zinkgruvan Mining AB are greatly acknowledged for providing mine tailing samples. We also want to thank Academy of Finland funded (grant#292570) CeraTail project for the support.
This paper is an outcome of 8 student projects conducted at the Department of Civil Engineering of Technical University of Denmark supervised by Pernille E. Jensen. The authors would therefore like to thank N. E. Buchholdt, M. N. Fugl, J. Nielsen, M. R. Nielsen, L. F. Thunbo, M. P. Sørensen, M. Ø. Sørensen, C. Potier and N. C. Ørum-Nielsen for their time and effort in the lab, producing a big part of the data for this article. The mine companies of Arctic Mining, Codelco, Sibelco Nordic Oy Ab, Hudson Resources Inc, Nussir ASA, Tanbreez and Zinkgruvan Mining AB are greatly acknowledged for providing mine tailing samples. We also want to thank Academy of Finland funded (grant# 292570 ) CeraTail project for the support.

Muestra la fuente de financiamiento declarada en la publicación.