Estudo dos macroclimas brasileiros e sua correlação na deterioração do concreto por carbonatação

Abstract

Considering the importance of the concept of durability, it is possible to verify the relevance of both the environmental influence of the environment in which the buildings are or will be inserted, and the maintenance process as a preventive measure. In this context, the present work aims to carry out a critical analysis based on the different environmental conditions existing in the Brazilian territory and to correlate the Brazilian normative precepts that aim to ensure the durability of structures in order to avoid or minimize the effects of carbonation, whose risk to cementitious materials consists of favoring other anomalies, such as cracking and reinforcement corrosion. Therefore, an extensive and objective bibliographic review, national and international, will be carried out, then based on data obtained from the Instituto Brasileiro de Geografia e Estatística (IBGE), Sistema de Estimativa de Emissões de Gases de Efeito Estufa (SEEG), Instituto Nacional de Meteorologia (INMET) will carry out an assessment of the level of aggressiveness depending on each environmental condition existing in Brazil. And, finally, recommendations will be presented that aim to prolong the useful life of concrete structures, since current normative criteria do not adequately describe the risk that Brazilian macroclimates offer in terms of carbonation, especially in states such as Pará and Mato Grosso.