Assessment of wastes used as gabion filling for lining works of a river located in Brazil
Arabian Journal of Geosciences(2024)
Abstract
This research focuses on the technical and economic assessment of construction and demolition wastes (C DW) as filling material for gabions executed for lining works of a river in the city of São Paulo, Brazil. Laboratory tests were performed on C DW and natural rock to determine the durability, compressive strength, and water absorption necessary for gabion designs. In addition, an economic assessment was performed to estimate the costs of using C DW to substitute rocks for gabion filling. The results showed that the studied C DW complies with the technical standards and can be used as gabion-filling material, thus promoting a circular economy. However, due to the hydraulic efforts, a layer of shotcrete must be applied on the gabion surface. The economic assessment highlighted the economic advantages and low costs of substituting rocks for C DW in gabions filling, even considering the need for a shotcrete layer.
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Key words
Recycling,Reuse,Civil construction,Sustainability,Solid wastes,Gabions,Circular economy
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