Life cycle assessment of recycled aggregates applied to cement-based construction materials

Authors

DOI:

https://doi.org/10.47456/bjpe.v10i2.44389

Keywords:

LCA, Sustainability, CDW

Abstract

Recycled Aggregates (RA) emerge as a solution to reduce environmental impacts by converting Construction and Demolition Waste (CDW) into construction material. The general objective of the research is to carry out a Life Cycle Assessment (LCA) of the use of RA for the production of cement-based construction materials, aiming to evaluate the influence of RA on environmental impact indicators. In total, 24 traits were used for the use of RA; in mortars, prefabricated blocks, non-structural, structural and self-compacting concrete. The OpenLCA program was used to calculate environmental impacts using 5 different impact methods. When analyzing the Life Cycle Inventory and interpreting the LCA results, it is noted that the production of RA presents itself as an environmentally viable solution in relation to the reference material as long as the impacts avoided by recycling are accounted for. CDW transport is mainly responsible for the impacts generated. The recycled material proved to be environmentally viable at various replacement levels, achieving reductions of up to 43.6% in indicators. RA has the potential to replace Natural Aggregates (NA) in almost all scenarios analyzed.

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Author Biographies

Lukas Bruno Damazio Bello, Universidade Federal do Espírito Santo, UFES, Brasil

Possui graduação em Engenharia Civil pela Universidade Vale do Rio Doce (2017). Especialista em Modelagem e dimensionamento de Estruturas pelo IPOG e Engenheiro de Segurança do Trabalho pela PUC-Minas. Atualmente é aluno de mestrado do departamento de Engenharia Civil da UFES. 

João Luiz Calmon, Universidade Federal do Espírito Santo, UFES, Brasil

Possui Graduação em Engenharia Civil pela Universidade Federal do Espírito Santo (1978), Mestrado em Engenharia de Produção pela Pontifícia Universidade Católica do Rio de Janeiro - PUC/RJ (1986), Doutorado em Engenharia Civil - Universitat Politècnica de Catalunya UPC - E T E Caminos Canales y Puertos de Barcelona (1995) e Pós-doutorado no Instituto de Ciencias de la Construcción Eduardo Torroja - CSIC - Madrid. É professor Professor TITULAR da Universidade Federal do Espírito Santo - UFES (aposentado e voluntário). Na UFES, professor nos Programas de Pós-graduação em Engenharia Civil e Engenharia Ambiental. Professor Visitante no Programa de Pós-graduação em Engenharia Civil da Universidade Federal da Bahia (UFBA), ex-professor visitante na Universidade Federal do Rio Grande do Sul - UFRGS. Bolsista Pesquisador Capixaba (produtividade) - BPC da Fundação de Amparo á Pesquisa do Espírito Santo - FAPES. Tem experiência na área de Engenharia Civil, com ênfase em Construção Civil, atuando principalmente nos seguintes temas: Método dos Elementos Finitos aplicado a processos construtivos de barragens e estruturas maciças e a situações de estruturas submetidas a temperaturas elevadas, Concretos e Argamassas, Durabilidade de estruturas, Utilização de Resíduos Sólidos e Subprodutos Industriais como Materiais de Construção, Construção Sustentável, Avaliação do Ciclo de Vida, Gerenciamento de Projetos de Construção, Building Information Modelling (BIM)

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Published

2024-06-11

How to Cite

Bello, L. B. D., & Calmon, J. L. (2024). Life cycle assessment of recycled aggregates applied to cement-based construction materials. Brazilian Journal of Production Engineering, 10(2), 389–409. https://doi.org/10.47456/bjpe.v10i2.44389

Issue

Vol. 10 No. 2 (2024): Regular Issue (April - June) *Publication Articles Continuous Flow*

Section

ENVIRONMENTAL ENGINEERING AND SUSTAINABILITY

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