Characterization and Analysis of Iron Ore Tailings Sediments and Their Possible Applications in Earthen Construction
Mineral extraction is of ultimate importance for the economies of different countries, and Brazil is one of the world’s leading producers of iron ores. Unfortunately, dams are still the main problem, mainly in Minas Gerais, especially after the Fundão Dam rupture in 2015. Additionally, there is stil...
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| Format: | Article |
| Language: | English |
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MDPI AG
2024-01-01
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| Series: | Buildings |
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| Online Access: | https://www.mdpi.com/2075-5309/14/2/362 |
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| author | Sofia Bessa Marlo Duarte Gabriela Lage Isabela Mendonça Roberto Galery Rochel Lago Ana Paula Texeira Fernando Lameiras Maria Teresa Aguilar |
| author_facet | Sofia Bessa Marlo Duarte Gabriela Lage Isabela Mendonça Roberto Galery Rochel Lago Ana Paula Texeira Fernando Lameiras Maria Teresa Aguilar |
| author_sort | Sofia Bessa |
| collection | DOAJ |
| description | Mineral extraction is of ultimate importance for the economies of different countries, and Brazil is one of the world’s leading producers of iron ores. Unfortunately, dams are still the main problem, mainly in Minas Gerais, especially after the Fundão Dam rupture in 2015. Additionally, there is still a massive presence of buildings built on earth throughout the Minas Gerais mining region, built from the 18th century to today. Investigating the potential of iron ore tailings (IOT) to be incorporated into traditional earthen construction techniques in regions affected by dam ruptures presents a relevant and innovative research approach. In addition, the local reuse of these sediments should be the priority. Thus, the main objective of this work was to collect, characterize, and analyze the possibilities of the application of these tailings to produce rammed earth (RE). A complete characterization analysis was performed on the samples collected at three points. To analyze the soil-IOT compatibility, representative mixtures of RE were produced, and the specific mass, compaction, and compressive strength were performed. It was observed that the IOT samples have a high silica content and that the mixtures of IOT–soil, even without cement, reached the compressive strength values of the international standards, or even above them. |
| first_indexed | 2024-03-07T22:40:03Z |
| format | Article |
| id | doaj.art-ca19b31e777c4d4995a6b6786abef3f4 |
| institution | Directory Open Access Journal |
| issn | 2075-5309 |
| language | English |
| last_indexed | 2024-03-07T22:40:03Z |
| publishDate | 2024-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Buildings |
| spelling | doaj.art-ca19b31e777c4d4995a6b6786abef3f42024-02-23T15:10:01ZengMDPI AGBuildings2075-53092024-01-0114236210.3390/buildings14020362Characterization and Analysis of Iron Ore Tailings Sediments and Their Possible Applications in Earthen ConstructionSofia Bessa0Marlo Duarte1Gabriela Lage2Isabela Mendonça3Roberto Galery4Rochel Lago5Ana Paula Texeira6Fernando Lameiras7Maria Teresa Aguilar8School of Architecture, Federal University of Minas Gerais, Belo Horizonte 30130-141, BrazilSchool of Engineering, Federal University of Minas Gerais, Belo Horizonte 31270-901, BrazilSchool of Architecture, Federal University of Minas Gerais, Belo Horizonte 30130-141, BrazilSchool of Architecture, Federal University of Minas Gerais, Belo Horizonte 30130-141, BrazilSchool of Engineering, Federal University of Minas Gerais, Belo Horizonte 31270-901, BrazilChemistry Department, Institute of Exact Sciences, Federal University of Minas Gerais, Belo Horizonte 31270-901, BrazilChemistry Department, Institute of Exact Sciences, Federal University of Minas Gerais, Belo Horizonte 31270-901, BrazilNuclear Technology Development Center, Belo Horizonte 31270-901, BrazilSchool of Engineering, Federal University of Minas Gerais, Belo Horizonte 31270-901, BrazilMineral extraction is of ultimate importance for the economies of different countries, and Brazil is one of the world’s leading producers of iron ores. Unfortunately, dams are still the main problem, mainly in Minas Gerais, especially after the Fundão Dam rupture in 2015. Additionally, there is still a massive presence of buildings built on earth throughout the Minas Gerais mining region, built from the 18th century to today. Investigating the potential of iron ore tailings (IOT) to be incorporated into traditional earthen construction techniques in regions affected by dam ruptures presents a relevant and innovative research approach. In addition, the local reuse of these sediments should be the priority. Thus, the main objective of this work was to collect, characterize, and analyze the possibilities of the application of these tailings to produce rammed earth (RE). A complete characterization analysis was performed on the samples collected at three points. To analyze the soil-IOT compatibility, representative mixtures of RE were produced, and the specific mass, compaction, and compressive strength were performed. It was observed that the IOT samples have a high silica content and that the mixtures of IOT–soil, even without cement, reached the compressive strength values of the international standards, or even above them.https://www.mdpi.com/2075-5309/14/2/362mining wastesrammed earthtoxicitymechanical analysis |
| spellingShingle | Sofia Bessa Marlo Duarte Gabriela Lage Isabela Mendonça Roberto Galery Rochel Lago Ana Paula Texeira Fernando Lameiras Maria Teresa Aguilar Characterization and Analysis of Iron Ore Tailings Sediments and Their Possible Applications in Earthen Construction Buildings mining wastes rammed earth toxicity mechanical analysis |
| title | Characterization and Analysis of Iron Ore Tailings Sediments and Their Possible Applications in Earthen Construction |
| title_full | Characterization and Analysis of Iron Ore Tailings Sediments and Their Possible Applications in Earthen Construction |
| title_fullStr | Characterization and Analysis of Iron Ore Tailings Sediments and Their Possible Applications in Earthen Construction |
| title_full_unstemmed | Characterization and Analysis of Iron Ore Tailings Sediments and Their Possible Applications in Earthen Construction |
| title_short | Characterization and Analysis of Iron Ore Tailings Sediments and Their Possible Applications in Earthen Construction |
| title_sort | characterization and analysis of iron ore tailings sediments and their possible applications in earthen construction |
| topic | mining wastes rammed earth toxicity mechanical analysis |
| url | https://www.mdpi.com/2075-5309/14/2/362 |
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