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Life Cycle Assessment of Innovative Asphalt Mixtures Made with Crumb Rubber for Impact-Absorbing Pavements

Author

Listed:
  • Mayara Sarisariyama Siverio Lima

    (Department of Structural Engineering and Material Sciences, University of Innsbruck, 6020 Innsbruck, Austria)

  • Christina Makoundou

    (Department of Material and Surface Design, Research Institutes of Sweden (RISE), 114 28 Stockholm, Sweden)

  • Cesare Sangiorgi

    (Department of Civil, Chemical, Environmental and Materials Engineering, University of Bologna, 40131 Bologna, Italy)

  • Florian Gschösser

    (Department of Structural Engineering and Material Sciences, University of Innsbruck, 6020 Innsbruck, Austria)

Abstract

This study applies the life cycle assessment methodology to evaluate the environmental impacts of shock-absorbing pavements fabricated with recycled materials (crumb rubber and a colored pigment called ferrotone), employing the “cradle-to-grave” approach, in which the impacts of all life cycle phases (from materials’ acquisition to the end-of-life of the pavement) are included. The analysis compares the impacts of standard and innovative asphalt materials, considering cold and hot production processes. In addition, three different lifespans are simulated for the pavement structures: the reference service life until the first intervention is considered to be 5 years, and the following scenarios consider that the alternative asphalt materials may last 20% less (4 years) or 20% longer (6 years) than the reference service life. The analysis uses non-renewable cumulative energy demand (nr-CED) and global warming potential (GWP) as main indicators to determine the environmental impacts over a 45-year analysis period. The results show that adopting the “dry process” (consisting of adding the rubber as a partial substitution for aggregates) increases the overall impacts due to the need for higher contents of binder. However, if the alternative pavement structures last 20% longer than the reference, they would generate lower impacts in terms of nr-CED and GWP.

Suggested Citation

  • Mayara Sarisariyama Siverio Lima & Christina Makoundou & Cesare Sangiorgi & Florian Gschösser, 2022. "Life Cycle Assessment of Innovative Asphalt Mixtures Made with Crumb Rubber for Impact-Absorbing Pavements," Sustainability, MDPI, vol. 14(22), pages 1-12, November.
    • Handle: RePEc:gam:jsusta:v:14:y:2022:i:22:p:14798-:d:968068
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    References listed on IDEAS

    as
    1. Mayara S. Siverio Lima & Mohsen Hajibabaei & Sina Hesarkazzazi & Robert Sitzenfrei & Alexander Buttgereit & Cesar Queiroz & Viktors Haritonovs & Florian Gschösser, 2021. "Determining the Environmental Potentials of Urban Pavements by Applying the Cradle-to-Cradle LCA Approach for a Road Network of a Midscale German City," Sustainability, MDPI, vol. 13(22), pages 1-14, November.
    2. Santos, João & Flintsch, Gerardo & Ferreira, Adelino, 2017. "Environmental and economic assessment of pavement construction and management practices for enhancing pavement sustainability," Resources, Conservation & Recycling, Elsevier, vol. 116(C), pages 15-31.
    3. Mayara S. Siverio Lima & Mohsen Hajibabaei & Sina Hesarkazzazi & Robert Sitzenfrei & Alexander Buttgereit & Cesar Queiroz & Arnold Tautschnig & Florian Gschösser, 2020. "Environmental Potentials of Asphalt Materials Applied to Urban Roads: Case Study of the City of Münster," Sustainability, MDPI, vol. 12(15), pages 1-19, July.
    4. Christina Makoundou & Cesare Sangiorgi & Kenth Johansson & Viveca Wallqvist, 2021. "Development of Functional Rubber-Based Impact-Absorbing Pavements for Cyclist and Pedestrian Injury Reduction," Sustainability, MDPI, vol. 13(20), pages 1-16, October.
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    1. Taísa Medina & João Luiz Calmon & Darli Vieira & Alencar Bravo & Thalya Vieira, 2023. "Life Cycle Assessment of Road Pavements That Incorporate Waste Reuse: A Systematic Review and Guidelines Proposal," Sustainability, MDPI, vol. 15(20), pages 1-21, October.

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