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Comparison of Environmental Loads of Fibers Used in the Manufacture of Hot Mix Asphalt (HMA) and Stone Mastic Asphalt (SMA) Mixes Using a Life Cycle Assessment (LCA)

Author

Listed:
  • Aner Martinez-Soto

    (Department of Civil Engineering, Faculty of Engineering and Science, Universidad de La Frontera, Temuco 4780000, Chile)

  • Gonzalo Valdes-Vidal

    (Department of Civil Engineering, Faculty of Engineering and Science, Universidad de La Frontera, Temuco 4780000, Chile)

  • Alejandra Calabi-Floody

    (Department of Civil Engineering, Faculty of Engineering and Science, Universidad de La Frontera, Temuco 4780000, Chile)

  • Constanza Avendaño-Vera

    (Escuela Técnica Superior de Ingeniería de Edificación, Universitat Politècnica de València, 46022 Valencia, Spain)

  • Camila Martínez-Toledo

    (Department of Civil Engineering, Faculty of Engineering and Science, Universidad de La Frontera, Temuco 4780000, Chile)

Abstract

Several authors have demonstrated improvements in the mechanical performance of asphalt mixes by including the use of fibers. However, it has also been reported that environmental assessments must address fiber use in asphalt mixes from the point of view of sustainability. In this study, a life cycle assessment is used to compare the use of four different fibers (fiberglass, polyester fiber, aramid fiber, and cellulose fiber) commonly used in hot mix asphalt (HMA) and stone mastic asphalt (SMA) mixes. Additionally, the use of textile fibers from end-of-life tires (FiTyre) is included in the comparison. The results show that in the five selected impact categories (climate change, terrestrial acidification, human toxicity, particulate matter emissions, and the exhaustion of nonrenewable fossil fuels), the use of FiTyre and cellulose fibers is more advantageous than existing traditional fibers (fiberglass, polyester fiber, and aramid fiber).

Suggested Citation

  • Aner Martinez-Soto & Gonzalo Valdes-Vidal & Alejandra Calabi-Floody & Constanza Avendaño-Vera & Camila Martínez-Toledo, 2022. "Comparison of Environmental Loads of Fibers Used in the Manufacture of Hot Mix Asphalt (HMA) and Stone Mastic Asphalt (SMA) Mixes Using a Life Cycle Assessment (LCA)," Sustainability, MDPI, vol. 14(21), pages 1-13, November.
    • Handle: RePEc:gam:jsusta:v:14:y:2022:i:21:p:14246-:d:959638
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    References listed on IDEAS

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    1. Yunpeng Zhao & Dimitrios Goulias & Dominique Peterson, 2021. "Recycled Asphalt Pavement Materials in Transport Pavement Infrastructure: Sustainability Analysis & Metrics," Sustainability, MDPI, vol. 13(14), pages 1-15, July.
    2. Edoardo Bocci, 2022. "Sustainable Pavement Engineering and Road Materials," Sustainability, MDPI, vol. 14(4), pages 1-4, February.
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    Cited by:

    1. Aner Martinez-Soto & Alejandra Calabi-Floody & Gonzalo Valdes-Vidal & Andrea Hucke & Camila Martinez-Toledo, 2023. "Life Cycle Assessment of Natural Zeolite-Based Warm Mix Asphalt and Reclaimed Asphalt Pavement," Sustainability, MDPI, vol. 15(2), pages 1-12, January.

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