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

Evelio Teijón-López-Zuazo, Ángel Vega-Zamanillo, Miguel Ángel Calzada-Pérez and Ángel Robles-Miguel
Additional contact information
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

Sustainability, 2020, vol. 12, issue 16, 1-14

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.

Keywords: construction and demolition waste; recycled concrete aggregate; recycled ceramic aggregate; wet mix macadam; cement-soil; sustainable roads (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2020
References: View complete reference list from CitEc
Citations: View citations in EconPapers (2)

Downloads: (external link)
https://www.mdpi.com/2071-1050/12/16/6663/pdf (application/pdf)
https://www.mdpi.com/2071-1050/12/16/6663/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jsusta:v:12:y:2020:i:16:p:6663-:d:400401

Access Statistics for this article

Sustainability is currently edited by Ms. Alexandra Wu

More articles in Sustainability from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().