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Influence of Iron Mining Waste Addition as a Sustainable Alternative on the Resilient and Physical Properties of Soils for Pavement Design

Author

Listed:
  • Daniel Corrêa Galhardo

    (Department of Fortification and Construction, Military Institute of Engineering-IME, Praça General Tibúrcio, 80, Urca, Rio de Janeiro 22290-270, Brazil)

  • Antônio Carlos Rodrigues Guimarães

    (Department of Fortification and Construction, Military Institute of Engineering-IME, Praça General Tibúrcio, 80, Urca, Rio de Janeiro 22290-270, Brazil)

  • Camila Antunes Martins

    (Department of Fortification and Construction, Military Institute of Engineering-IME, Praça General Tibúrcio, 80, Urca, Rio de Janeiro 22290-270, Brazil)

  • Murilo Miguel Narciso

    (Department of Fortification and Construction, Military Institute of Engineering-IME, Praça General Tibúrcio, 80, Urca, Rio de Janeiro 22290-270, Brazil)

  • Sergio Neves Monteiro

    (Department of Materials Science, Military Institute of Engineering-IME, Praça General Tibúrcio, 80, Urca, Rio de Janeiro 22290-270, Brazil)

  • Lisley Madeira Coelho

    (Department of Fortification and Construction, Military Institute of Engineering-IME, Praça General Tibúrcio, 80, Urca, Rio de Janeiro 22290-270, Brazil)

Abstract

Mining activities generate large volumes of waste, posing environmental and economic challenges, particularly in Brazil’s Quadrilátero Ferrífero region. This study assesses the potential reuse of iron ore waste from Samarco Mineração S.A. in road pavement layers by blending it with phyllite residual soil (PRS) and lateritic clayey soil (LCS). The addition of 50% waste to PRS led to substantial improvements, increasing the resilient modulus (RM) by up to 130% under medium stress and reducing expansibility from 6.1% to 1%, meeting Brazilian standards for sub-base applications. These enhancements make the PRS-waste blend a viable and sustainable option for reinforcing subgrade and sub-base layers. In contrast, the LCS with 20% waste showed moderate RM improvements under high-stress conditions, while higher waste contents reduced stiffness, indicating that higher dosages may adversely affect performance. This study highlights the potential of inert, non-hazardous mining waste as a safe and efficient solution for pavement applications, promoting the sustainable use of discarded materials.

Suggested Citation

  • Daniel Corrêa Galhardo & Antônio Carlos Rodrigues Guimarães & Camila Antunes Martins & Murilo Miguel Narciso & Sergio Neves Monteiro & Lisley Madeira Coelho, 2024. "Influence of Iron Mining Waste Addition as a Sustainable Alternative on the Resilient and Physical Properties of Soils for Pavement Design," Sustainability, MDPI, vol. 16(23), pages 1-24, November.
    • Handle: RePEc:gam:jsusta:v:16:y:2024:i:23:p:10211-:d:1526691
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    References listed on IDEAS

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    1. Virlene Leite Silveira & Antônio Carlos Rodrigues Guimarães & Lisley Madeira Coelho & William Wilson dos Santos & Pedro Henrique Poubel Mendonça da Silveira & Sergio Neves Monteiro, 2024. "Recycling Iron Ore Waste through Low-Cost Paving Techniques," Sustainability, MDPI, vol. 16(13), pages 1-19, June.
    2. Lisley Madeira Coelho & Antônio Carlos Rodrigues Guimarães & Afonso Rangel Garcez de Azevedo & Sergio Neves Monteiro, 2024. "Sustainable Reclaimed Asphalt Emulsified Granular Mixture for Pavement Base Stabilization: Prediction of Mechanical Behavior Based on Repeated Load Triaxial Tests," Sustainability, MDPI, vol. 16(13), pages 1-14, June.
    3. Lisley Madeira Coelho & Antônio Carlos Rodrigues Guimarães & Claudio Rafael Cicuto Landim Alves Moreira & Graziella Pereira Pires dos Santos & Sergio Neves Monteiro & Pedro Henrique Poubel Mendonça da, 2024. "Feasibility of Using Ferronickel Slag as a Sustainable Alternative Aggregate in Hot Mix Asphalt," Sustainability, MDPI, vol. 16(19), pages 1-17, October.
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