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Influence of Partial Coarse Fraction Substitution of Natural Aggregate by Recycled Concrete Aggregate in Hot Asphalt Mixtures

Author

Listed:
  • Debora Acosta Álvarez

    (Faculty of Civil Engineering, Technological University of Havana “José Antonio Echeverría”, Havana 11500, Cuba)

  • Anadelys Alonso Aenlle

    (Faculty of Civil Engineering, Technological University of Havana “José Antonio Echeverría”, Havana 11500, Cuba)

  • Antonio José Tenza-Abril

    (Department of Civil Engineering, University of Alicante, 03080 Alicante, Spain)

  • Salvador Ivorra

    (Department of Civil Engineering, University of Alicante, 03080 Alicante, Spain)

Abstract

The main objective of this work is to evaluate the properties of hot asphalt mixtures that have been manufactured with different recycled concrete aggregate (RCA) percentages (0%, 20%, 40%, 60% and 80% of the fraction 5–13 mm) and asphalt (4%, 4.5% and 5%). Dense asphalt mixtures were made; partially replacing the natural aggregate (NA) fraction between 5 and 13 mm. Marshall specimens were manufactured to determine the main properties of the asphalt concrete (AC) in terms of density, voids, stability and deformation. Additionally, the optimal asphalt content (OAC) was determined, and measured the water sensibility, the stiffness modulus and the permanent deformation. The results corroborate the potential for using these sources of construction and demolition waste (CDW) as a RCA in asphalt concrete and show that the hot asphalt mixtures with up to 40% substitution of natural aggregate by recycled aggregate in the fraction 5–13 mm present good behavior.

Suggested Citation

  • Debora Acosta Álvarez & Anadelys Alonso Aenlle & Antonio José Tenza-Abril & Salvador Ivorra, 2019. "Influence of Partial Coarse Fraction Substitution of Natural Aggregate by Recycled Concrete Aggregate in Hot Asphalt Mixtures," Sustainability, MDPI, vol. 12(1), pages 1-16, December.
    • Handle: RePEc:gam:jsusta:v:12:y:2019:i:1:p:250-:d:302726
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    References listed on IDEAS

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    1. Debora Acosta Alvarez & Anadelys Alonso Aenlle & Antonio José Tenza-Abril, 2018. "Laboratory Evaluation of Hot Asphalt Concrete Properties with Cuban Recycled Concrete Aggregates," Sustainability, MDPI, vol. 10(8), pages 1-13, July.
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