Abstract
Carolina Lopes' research developed in EMP LAC 2024, Niterói, Brazil, using MARIO software Abstract:This report investigates the environmental impacts of concrete manufacturing in Brazil using Input-Output (IO) analysis with MARIO. The study compares the carbon footprint of regular concrete with concrete incorporating construction and demolition waste (CDW). The results indicate that the addition of CDW, intended to enhance sustainability, leads to an increased carbon footprint due to higher cement usage. Therefore, it was investigated a scenario where 8% less cement was used in Brazil, which could avoid 1.26 million tonnes of CO2 emissions in the country. Since the cement manufacturing represents a great environment impact, researchers and policymakers should focus on making changes in that industry to reduce the environmental impacts of concrete. Reducing clinker content and exploring alternative materials to replace cement holds immense potential for transformative changes within the construction sector. Therefore, implementing regulatory frameworks to incentivize sustainable approaches can significantly contribute to minimizing the overall environmental impact of concrete manufacturing.