Otimizações no planejamento de misturas de concreto para a sustentabilidade de uma Área Metropolitana na América do Sul, implementando a análise do ciclo de vida dos materiais
DOI:
https://doi.org/10.22320/07190700.2024.14.01.04Palavras-chave:
Avaliação de Ciclo de Vida ACV, sustentabilidade, otimização de áridos, produção de BetãoResumo
A Avaliação do Ciclo de Vida (ACV) é uma metodologia que identifica os aspectos ambientais e os possíveis impactos associados a um produto por meio da compilação de um levantamento das entradas e saídas do sistema para otimização, planejamento estratégico e implementação de políticas sustentáveis. No campo da produção de concreto, várias técnicas de otimização têm sido usadas e seu impacto no projeto de mistura, como análise multicritério, modelagem estatística, materiais cimentícios suplementares e algoritmos de otimização. Este trabalho aplica a ACV à produção de concreto na Área Metropolitana do Vale de Aburrá, na Colômbia, com a hipótese de que a otimização das proporções, sem a adição de aditivos ou aditivos especiais, pode reduzir as emissões de CO2 e o consumo de energia. Usando a metodologia ACI 211, as misturas de concreto foram projetadas e seus impactos ambientais foram avaliados. Os resultados mostram que o uso de agregados grossos maiores reduz o consumo de cimento, reduzindo as emissões de CO2 em até 15%. A mistura ideal não é apenas mais econômica, mas também tem um impacto ambiental menor. As conclusões indicam que é possível compatibilizar a eficiência econômica e, ao mesmo tempo, promover uma redução na pegada de carbono.
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Direitos de Autor (c) 2024 Andres Felipe Restrepo-Ramirez, Carlos Andrés Rúa-Machado, Yhan Paul Arias-Jaramillo
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