Estudo de manifestações patológicas em revestimentos de fachadas – sistematização dos casos e propostas de intervenção

Abstract

Due to the construction system widely spread in Brazil, with Portuguese origin, composed mostly of reinforced concrete structures with masonry fences, the use of mortar coatings is predominant. Despite its wide use and the constant evolution that civil construction is going through today, this coating system has its importance often neglected, being executed through retrograde practices, which, as a consequence, has made the appearance of manifestations frequent. pathological conditions with different causes and consequences. Therefore, in this study, the main pathological manifestations that plague the mortar coatings of facades, related both to the production process and the quality of the materials used, were observed, characterized and systematized, and based on this study, proposals were made for good practices in order to to avoid the problems of constructive addictions. The methodology used was based on the study of practical cases, with a photographic survey and analysis of buildings affected by pathologies, followed by the assumption of the possible origins of the problem, and, based on these, the proposal for an adequate solution. Based on the study, it was concluded that the presence of pathological manifestations in the mortar coverings is related, in most cases, with failures that occur during the construction process and with the lack of maintenance of the buildings. Taking into account the relevance of these facts, measures were proposed, which are expected to contribute to the improvement of the civil construction market, composing a guideline for the qualitative execution of coating services, in order to improve the usability of buildings and expand its useful life.