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The Impact of Recycled Concrete Aggregate on the Stiffness, Fatigue, and Low-Temperature Performance of Asphalt Mixtures for Road Construction

Author

Listed:
  • Aleksandar Radević

    (Faculty of Civil Engineering, University of Belgrade, Bulevar kralja Aleksandra 73, 11000 Belgrade, Serbia)

  • Ivan Isailović

    (TPA GmbH, Gesellschaft für Qualitätssicherung und Innovation, Ein Unternehmen der STRABAG SE, Siegburger Straße 241, 50679 Cologne, Germany)

  • Michael P. Wistuba

    (Department of Civil Engineering, Braunschweig Pavement Engineering Centre (ISBS), Technische Universitat Braunschweig, 38106 Braunschweig, Germany)

  • Dimitrije Zakić

    (Faculty of Civil Engineering, University of Belgrade, Bulevar kralja Aleksandra 73, 11000 Belgrade, Serbia)

  • Marko Orešković

    (Faculty of Civil Engineering, University of Belgrade, Bulevar kralja Aleksandra 73, 11000 Belgrade, Serbia)

  • Goran Mladenović

    (Faculty of Civil Engineering, University of Belgrade, Bulevar kralja Aleksandra 73, 11000 Belgrade, Serbia)

Abstract

The need for road (re)construction materials is constantly growing. At the same time, there is a limited quantity of new, high-quality materials available and a buildup of secondary/recycled construction materials. One possible solution may be the use of recycled concrete aggregate (RCA) in asphalt mixtures instead of natural aggregate (NA), which also promotes economic and environmental sustainability. The potential use of fine and coarse RCA in road asphalt mixtures is analyzed in this work. Nine asphalt mixtures were tested for base course layers, where RCA was used as a NA substitute. The impact of the quantity of RCA (up to 45% by mass) on the resulting physical and mechanical properties of asphalt mixtures was investigated, and consequently compared with the properties of a reference control mixture produced with NA only. Results reveal that the addition of RCA requires higher bitumen in comparison to the control mixture (up to 1%). Consequently, mixtures with RCA had 15−20% lower stiffness and up to 26% higher critical fatigue strain value (ε 6 ). Although RCA mixtures contained more bitumen, their low-temperature resistance was slightly inferior compared with the control mixture (failure temperatures were up to 4.3 °C higher). In conclusion, asphalt mixtures with up to 45% RCA can be used without substantially reducing performance.

Suggested Citation

  • Aleksandar Radević & Ivan Isailović & Michael P. Wistuba & Dimitrije Zakić & Marko Orešković & Goran Mladenović, 2020. "The Impact of Recycled Concrete Aggregate on the Stiffness, Fatigue, and Low-Temperature Performance of Asphalt Mixtures for Road Construction," Sustainability, MDPI, vol. 12(10), pages 1-14, May.
    • Handle: RePEc:gam:jsusta:v:12:y:2020:i:10:p:3949-:d:356848
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    References listed on IDEAS

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    1. Juan J. Galan & Luís M. Silva & Ignacio Pérez & Ana R. Pasandín, 2019. "Mechanical Behavior of Hot-Mix Asphalt Made with Recycled Concrete Aggregates from Construction and Demolition Waste: A Design of Experiments Approach," Sustainability, MDPI, vol. 11(13), pages 1-12, July.
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    Cited by:

    1. Carlos D. A. Loureiro & Caroline F. N. Moura & Mafalda Rodrigues & Fernando C. G. Martinho & Hugo M. R. D. Silva & Joel R. M. Oliveira, 2022. "Steel Slag and Recycled Concrete Aggregates: Replacing Quarries to Supply Sustainable Materials for the Asphalt Paving Industry," Sustainability, MDPI, vol. 14(9), pages 1-31, April.
    2. Jessika Morales Fournier & Debora Acosta Álvarez & Anadelys Alonso Aenlle & Antonio José Tenza-Abril & Salvador Ivorra, 2020. "Combining Reclaimed Asphalt Pavement (RAP) and Recycled Concrete Aggregate (RCA) from Cuba to Obtain a Coarse Aggregate Fraction," Sustainability, MDPI, vol. 12(13), pages 1-16, July.

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