Análise comparativa do ciclo de vida entre o bloco de betão e cerâmica

Abstract

The civil construction sector in Mozambique is a driver of development, but it faces significant environmental challenges, being responsible for a considerable portion of energy consumption and 𝐶𝑂₂ emissions. Therefore, this study aimed to analyze and compare the life cycle of concrete and ceramic blocks, widely used in the country, to guide more sustainable construction decisions. The research evaluated the environmental impact, thermal efficiency, acoustic performance, and life cycle cost (LCC) of both materials. For the Life Cycle Assessment (LCA), the SimaPro software was used, and a multi-criteria mathematical model was developed to synthesize the results, culminating in the calculation of the Best Alternative Index (BA). The results revealed a significant advantage for the ceramic block in terms of environmental impacts, thermal efficiency, and life cycle cost. Although the concrete block showed a slight superiority in acoustic performance, the final Best Alternative Index (BA) value of 0.488 points to a global advantage for the ceramic block. It is concluded that the ceramic block represents the most advantageous alternative for construction in Mozambique, promoting greater environmental sustainability.