PreprintArticleVersion 1Preserved in Portico This version is not peer-reviewed
Use of Recycled Aggregates made from Construction and Demolition Waste from Structural Concrete such as Graded Aggregate and Cement Soil in Sustainable Road Infrastructures Base Layers
Version 1
: Received: 23 April 2020 / Approved: 24 April 2020 / Online: 24 April 2020 (14:20:23 CEST)
How to cite:
Teijón-López-Zuazo, E.; Vega-Zamanillo, Á.; Calzada-Pérez, M.Á.; Robles-Miguel, Á. Use of Recycled Aggregates made from Construction and Demolition Waste from Structural Concrete such as Graded Aggregate and Cement Soil in Sustainable Road Infrastructures Base Layers. Preprints2020, 2020040451 (doi: 10.20944/preprints202004.0451.v1).
Teijón-López-Zuazo, E.; Vega-Zamanillo, Á.; Calzada-Pérez, M.Á.; Robles-Miguel, Á. Use of Recycled Aggregates made from Construction and Demolition Waste from Structural Concrete such as Graded Aggregate and Cement Soil in Sustainable Road Infrastructures Base Layers. Preprints 2020, 2020040451 (doi: 10.20944/preprints202004.0451.v1).
Cite as:
Teijón-López-Zuazo, E.; Vega-Zamanillo, Á.; Calzada-Pérez, M.Á.; Robles-Miguel, Á. Use of Recycled Aggregates made from Construction and Demolition Waste from Structural Concrete such as Graded Aggregate and Cement Soil in Sustainable Road Infrastructures Base Layers. Preprints2020, 2020040451 (doi: 10.20944/preprints202004.0451.v1).
Teijón-López-Zuazo, E.; Vega-Zamanillo, Á.; Calzada-Pérez, M.Á.; Robles-Miguel, Á. Use of Recycled Aggregates made from Construction and Demolition Waste from Structural Concrete such as Graded Aggregate and Cement Soil in Sustainable Road Infrastructures Base Layers. Preprints 2020, 2020040451 (doi: 10.20944/preprints202004.0451.v1).
Abstract
Construction and demolition waste (CDW) represents 1/3 of the weight of all-waste produced. Increasing their recycling and reutilization with recycled aggregates (RA) means closing the life cycle of construction materials. Research has been carried out on artificial aggregates from the exclusive crushing of structural concrete waste in selective demolitions (CDWRConc). This study analyses the use of recycled concrete as graded aggregate (GARConc) and in cement soil (CSRConc). The material complies with the requirements as 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. The sensitive road systems are infrastructures in places of great natural wealth and low traffic intensity, with an annual average of heavy vehicle traffic (AADTh) below 50 vhp/d. As soluble salt contents have been detected, additional waterproofing or drainage measures must be adopted to prevent water infiltration into the layers made up of CDWRHorm. Finally, the high initial values of UCS allow the temporary passage of light vehicles over CSRConc after 3 days.
Keywords
Construction and Demolition Waste; recycled aggregate; structural concrete; absorption coefficient; graded aggregate; soil, base layer
Subject
ENGINEERING, Civil Engineering
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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