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Effect of Polypropylene Fibers on the Shear Strength–Dilation Behavior of Compacted Lateritic Soils

Author

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  • Maitê Rocha Silveira

    (Department of Civil and Environmental Engineering, São Paulo State University (UNESP), Av. Engenheiro Luiz Edmundo Carrijo Coube 14-01, Bauru 17033-360, SP, Brazil)

  • Sabrina Andrade Rocha

    (Department of Civil Engineering, Federal University of Sao Carlos (UFSCar), Rodovia Washington Luiz, São Carlos 17033-360, SP, Brazil)

  • Natália de Souza Correia

    (Department of Civil Engineering, Federal University of Sao Carlos (UFSCar), Rodovia Washington Luiz, São Carlos 17033-360, SP, Brazil)

  • Roger Augusto Rodrigues

    (Department of Civil and Environmental Engineering, São Paulo State University (UNESP), Av. Engenheiro Luiz Edmundo Carrijo Coube 14-01, Bauru 17033-360, SP, Brazil)

  • Heraldo Luiz Giacheti

    (Department of Civil and Environmental Engineering, São Paulo State University (UNESP), Av. Engenheiro Luiz Edmundo Carrijo Coube 14-01, Bauru 17033-360, SP, Brazil)

  • Paulo César Lodi

    (Department of Civil and Environmental Engineering, São Paulo State University (UNESP), Av. Engenheiro Luiz Edmundo Carrijo Coube 14-01, Bauru 17033-360, SP, Brazil)

Abstract

The stress–dilatancy relationship for fiber-reinforced soils has been the focus of recent studies. This relationship can be used as a foundation for the development of constitutive models for fiber-reinforced soils. The present study aims to investigate the effect of recycled polypropylene fibers on the shear strength–dilation behavior of two lateritic soils using the stress–dilatancy relationship for direct shear tests. Results show that fibers improved the shear strength behavior of the composites, observed by increases in the friction angle. Fibers’ orientation at the sheared interface could be observed. The volumetric change during shearing was altered by the presence of fibers in both soils. Overall, results indicate that the stress–dilatancy relationship is affected by inclusions in the soil mix. Results can be used to implement constitutive modeling for fiber-reinforced soils.

Suggested Citation

  • Maitê Rocha Silveira & Sabrina Andrade Rocha & Natália de Souza Correia & Roger Augusto Rodrigues & Heraldo Luiz Giacheti & Paulo César Lodi, 2021. "Effect of Polypropylene Fibers on the Shear Strength–Dilation Behavior of Compacted Lateritic Soils," Sustainability, MDPI, vol. 13(22), pages 1-15, November.
    • Handle: RePEc:gam:jsusta:v:13:y:2021:i:22:p:12603-:d:679445
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    References listed on IDEAS

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    1. Régis Marçal & Paulo César Lodi & Natália de Souza Correia & Heraldo Luiz Giacheti & Roger Augusto Rodrigues & John S. McCartney, 2020. "Reinforcing Effect of Polypropylene Waste Strips on Compacted Lateritic Soils," Sustainability, MDPI, vol. 12(22), pages 1-16, November.
    2. Maitê Rocha Silveira & Paulo César Lodi & Natália de Souza Correia & Roger Augusto Rodrigues & Heraldo Luiz Giacheti, 2020. "Effect of Recycled Polyethylene Terephthalate Strips on the Mechanical Properties of Cement-Treated Lateritic Sandy Soil," Sustainability, MDPI, vol. 12(23), pages 1-19, November.
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    Cited by:

    1. Wajeeha Qamar & Ammad Hassan Khan & Zia ur Rehman & Zubair Masoud, 2022. "Sustainable Application of Wool-Banana Bio-Composite Waste Material in Geotechnical Engineering for Enhancement of Elastoplastic Strain and Resilience of Subgrade Expansive Clays," Sustainability, MDPI, vol. 14(20), pages 1-14, October.
    2. Castorina S. Vieira, 2022. "Sustainability in Geotechnics through the Use of Environmentally Friendly Materials," Sustainability, MDPI, vol. 14(3), pages 1-7, January.

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