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Use of Recycled Aggregates Made from Construction and Demolition Waste in Sustainable Road Base Layers

Author

Listed:
  • Evelio Teijón-López-Zuazo

    (Department of Construction and Agronomy, Zamora Polytechnical School, Viriato Campus, University of Salamanca, 49022 Zamora, Spain)

  • Ángel Vega-Zamanillo

    (Department of Transportation and Projects and Processes Technology, Civil Engineering Technical School of Santander, University of Cantabria, Los Castros Avenue, 39005 Santander, Spain)

  • Miguel Ángel Calzada-Pérez

    (Department of Transportation and Projects and Processes Technology, Civil Engineering Technical School of Santander, University of Cantabria, Los Castros Avenue, 39005 Santander, Spain)

  • Ángel Robles-Miguel

    (Department of Construction and Agronomy, Zamora Polytechnical School, Viriato Campus, University of Salamanca, 49022 Zamora, Spain)

Abstract

Research has been carried out on recycled aggregates from the exclusive crushing of structural concrete waste (CDWRCon) and mixed ceramic materials (CDWRCer) in selective demolitions. This study analyses the use of these recycled aggregates as wet mix macadam (GARCon, GARCer) and in cement soil (CSRCon, CSRCer). The materials comply with the requirements of a road base; although, due to the low values of resistance to fragmentation, these materials are adequate for use in sensitive road systems and other places, such as urban roads and car parks, that have a low intensity of heavy traffic. As soluble salt contents were detected, additional waterproofing or drainage measures must be adopted to prevent water infiltration into the layers made up of CDWRCon or CDWRCer. Finally, the high initial values of unconfined compressive strength (UCS) allow the temporary passage of light vehicles over CSRCon or CSRCer after three days.

Suggested Citation

  • Evelio Teijón-López-Zuazo & Ángel Vega-Zamanillo & Miguel Ángel Calzada-Pérez & Ángel Robles-Miguel, 2020. "Use of Recycled Aggregates Made from Construction and Demolition Waste in Sustainable Road Base Layers," Sustainability, MDPI, vol. 12(16), pages 1-14, August.
    • Handle: RePEc:gam:jsusta:v:12:y:2020:i:16:p:6663-:d:400401
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    Citations

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    Cited by:

    1. Alessandra Bonoli & Sara Zanni & Francisco Serrano-Bernardo, 2021. "Sustainability in Building and Construction within the Framework of Circular Cities and European New Green Deal. The Contribution of Concrete Recycling," Sustainability, MDPI, vol. 13(4), pages 1-16, February.
    2. Syed Kamran Hussain Shah & Taro Uchimura & Ken Kawamoto, 2022. "Permanent Deformation and Breakage Response of Recycled Concrete Aggregates under Cyclic Loading Subject to Moisture Change," Sustainability, MDPI, vol. 14(9), pages 1-17, April.

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