AVALIAÇÃO AMBIENTAL DE PROCESSOS DE PAVIMENTAÇÃO A PARTIR DA ANÁLISE DO CICLO DE VIDA

Life Cycle Analysis (LCA) is a methodology that encompasses the compilation and evaluation of the inputs, outputs and impacts of a product throughout its life cycle. The results of this evaluation are used to indicate options suitable for a specific application. This article used the tools of LCA, supported by software SimaPro, to compare environmentally the urban paving processes based on asphalt concrete and construction with precast concrete parts, considering the positive characteristics of the use of rigid pavement. The data were obtained with the purpose of comparing them and determining the level of environmental impact caused during their life cycles. The results show that asphalt concrete was 12,32% less impacting than concrete pavement in environmental performance. The main factor for the low performance of the pavement is due in particular to the CO2 emissions from the manufacture of Portland cement and its contribution to global warming.