Avaliação de ciclo de vida com foco nas etapas de execução e uso em estruturas geotécnicas reforçadas com geotêxtil tecido.

Vieira de Araújo Júnior, Luiz Paulo; Bueno, Cristiane

The Life Cycle Assessment (LCA) is one of the most used methodologies for analyzing the potential environmental impacts of the Civil Engineering sector. Although the number of LCA research in civil engineering has grown in recent years, it is noted that, in the area of geosynthetics, there are gaps to be filled. Thus, this research aimed to analyze, with the help of the LCA methodology, soil structures reinforced with geosynthetics and compare them with a traditional structure built in reinforced concrete, in order to quantify and qualify the potential environmental impacts. The methodology comprised a brief review of LCA and soil structures reinforced with geosynthetics; application of LCA phases. The research proposed the realization of an LCA study for the processes of execution and use and maintenance through the ReCiPe method. The impact categories Freshwater Eutrophication, Climate Change, Ozone Depletion and Acidification were considered relevant. The results showed that, in most of the analyzed categories, the structure of reinforced soils revealed less contribution when compared to a concrete structure; and the impact categories that had the highest emissions were the terrestrial acidification categories followed by the climate change category. Therefore, it was concluded that the LCA methodology is an effective instrument to qualitatively and quantitatively evaluate the potential impacts of soil structures reinforced with geosynthetics when compared to a traditional structure.

GeSec: Revista de Gestao e Secretariado, 2024, Vol 15, Issue 1, p1173

2178-9010

Academic Journal

10.7769/gesec.v15i1.3409