Caracterização geotécnica de uma areia reciclada para uso em estruturas de solo reforçado (ESR) com geossintéticos

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Universidade Federal de Goiás


The construction industry (CI) is an important sector of the economy, once it generates many jobs directly and indirectly. However, the CI causes intense extraction of raw natural and produces large volumes of construction and demolition waste (CDW).Recycling this waste appears as an environmentally friendly destination.Recycled construction and demolition waste (RCDW) has shown wide applicability in geotechnical works.In this scenario, this study presents the geotechnical characterization (physical and mechanical properties) of a RCDW (called “brown sand”). The RCDW samples were collected during along period to verify the properties’variability.The characterization of the materialused the methods usually performed in geotechnical characterization of soils.The investigation of the RCDW mechanical properties was carried outby direct shear tests. Analysis revealed that the RCDW presented particle size distribution curveswithlow variability and very close to the limitsstated bysome International Standardsfor reinforced soil backfill material.Direct shear tests showedthe material has excellent values of friction angleandsignificant values of cohesion. It is concluded that the RCDW revealed to be a material with excellent geotechnical properties, whichmakes itan interesting material to be used in geotechnical worksand very attractive due to the environmental aspects.



Propriedades geotécnicas, Resíduos de construção e demolição, Reciclagem, Variabilidade, Ensaios de laboratório, Geotechnical properties, Construction and demolition waste, Recycling, Variability, Laboratory testing


OLIVEIRA, Priscila; SANTOS, Eder Carlos Guedes dos. Caracterização geotécnica de uma areia reciclada para uso em estruturas de solo reforçado (ESR) com geossintéticos. REEC - Revista Eletrônica de Engenharia Civil, Goiânia, v. 19, n. 1, p. 180-193. 2023. DOI: 10.5216/reec.v19i1.76122. Disponível em: Acesso em: 30 jan. 2024.