LCA AND LCC IN CONCRETES WITH HIGH LEVELS OF LIMESTONE FILER

• Autor(a) principal: Isaia, Gustavo de Aguiar
• Data de Publicação: 2022
• Outros Autores: Silva, Silvane Santos
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Mix Sustentável (Online)
• Texto Completo: https://ojs.sites.ufsc.br/index.php/mixsustentavel/article/view/5187
• topic: ACV e CCV; Concreto; Sustentabilidade; Filer Calcário; Cinza Volante; ACV e CCV em Concretos com Elevados Teores de Filer Calcário

This article aims to determine the Life Cycle Assessment (LCA) and Life Cycle Cost (LCC) in concrete through the replacement of Portland cement (PC) by high levels of limestone filer (LF) and fly ash (FA), in contents of 50% to 80%, with the purpose of reducing the CO2 emanations in the PC manufacture. LCA and LCC were applied with the intention of assessing the sustainability of the studied concretes based on environmental impacts and cost. The study showed that, due to the increase in the proportion of LF in the mixtures, the environmental impact is reduced due to the reduction in the use of PC. The behavior was observed in the totality of the studied environmental indexes, demonstrating the close relationship between the proportion of PC and the pollution of the environment, confirming, thus, the efficiency in the use of high contents of LF. The results showed the feasibility of concrete with high LF contents, from a technical-environmental point of view, considering that the achieved results pointed, unequivocally, to the excellent environmental performance of the mixtures.