Patologia de revestimento: ineficiência do revestimento cerâmico causado pelo não rompimento dos cordões de argamassa devido ao excesso de tempo em aberto da argamassa colante

Abstract

Ceramic tiling is present in thousands of constructions sites around the nation's territory, but, in recent years, this material has been receiving a lot of the attention of building professionals, due to its demanding of a cautelous execution in order for the non-appearance of several complications, such as the hazard of the site and its workers, the emergence of pathological manifestations, among others. The application of the study about pathologies in ceramic tiles has a focus on the motives of this event, which can be caused by failure during the executive process, and asses the reaction of the materials used in the researched areas, as well as correlating the stages since it has passed its due date and of the rupture of mortar coatings. In order to do this, two experiments have been performed, the first in the laboratory of soils of the Centro Universitário Unidade de Ensino Superior Dom Bosco (UNDB), utilizing materials and tools supplied by the institution, and the second testing, which was carried in loco, that is in site conditions, and was performed with materials and tools similar to the one done in the laboratory. This article has been elaborated by the means of explanatory research, of quali-quantitative approach, since researches have been made with the aim of data qualification and validation, these that are provenient from the accomplished experiment and its results derived from the analisis done under the produced tests. Throughout these experiments, it was noted that there is a large disparity between the due date of mortar in a laboratory setting and in loco, also concluding that the influence of mortar coating rupturing over the due date of mortar has only been seen in laboratory tests. It is reaffirmed, that the execution of the stages of ceramic application in a site setting must adopt the NBR 13753, NBR 13755, NBR 14081-1, NBR 14081-2, NBR 14081-3 norms, as well as relying in the supervision of the responsible building professional, in order to avoid the emergence of future pathological manifestations resulting from this stage of the construction.