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Article

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

1
Department of Construction and Agronomy, Zamora Polytechnical School, Viriato Campus, University of Salamanca, 49022 Zamora, Spain
2
Department of Transportation and Projects and Processes Technology, Civil Engineering Technical School of Santander, University of Cantabria, Los Castros Avenue, 39005 Santander, Spain
*
Author to whom correspondence should be addressed.
Sustainability 2020, 12(16), 6663; https://doi.org/10.3390/su12166663
Received: 2 July 2020 / Revised: 2 August 2020 / Accepted: 15 August 2020 / Published: 18 August 2020
(This article belongs to the Special Issue Smart Solutions for Sustainable Transport Infrastructure)
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. View Full-Text
Keywords: construction and demolition waste; recycled concrete aggregate; recycled ceramic aggregate; wet mix macadam; cement-soil; sustainable roads construction and demolition waste; recycled concrete aggregate; recycled ceramic aggregate; wet mix macadam; cement-soil; sustainable roads
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MDPI and ACS Style

Teijón-López-Zuazo, E.; Vega-Zamanillo, Á.; Calzada-Pérez, M.Á.; Robles-Miguel, Á. Use of Recycled Aggregates Made from Construction and Demolition Waste in Sustainable Road Base Layers. Sustainability 2020, 12, 6663. https://doi.org/10.3390/su12166663

AMA Style

Teijón-López-Zuazo E, Vega-Zamanillo Á, Calzada-Pérez MÁ, Robles-Miguel Á. Use of Recycled Aggregates Made from Construction and Demolition Waste in Sustainable Road Base Layers. Sustainability. 2020; 12(16):6663. https://doi.org/10.3390/su12166663

Chicago/Turabian Style

Teijón-López-Zuazo, Evelio, Ángel Vega-Zamanillo, Miguel Ángel Calzada-Pérez, and Ángel Robles-Miguel. 2020. "Use of Recycled Aggregates Made from Construction and Demolition Waste in Sustainable Road Base Layers" Sustainability 12, no. 16: 6663. https://doi.org/10.3390/su12166663

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