Banca de DEFESA: Thália Raelly de Lima Meneses Romeiro

Quantification of Degradation in Facades with Mortar Coating and Painting - Case Study in Brasília-DF

Degradation, Facade, Mortar, Anomaly, and Service Life

Buildings are composed of various systems, each subject to actions of differing intensities. Facades and roofs are considered systems with the highest number of anomalies, as they are the most exposed to environmental actions such as radiation, wind, precipitation, and temperature. Facades play an important role in buildings, not only visually, ensuring the aesthetics of the structure, but also in maintaining thermal conditions, mechanical resistance, stability, and internal protection of the building. Thus, this study aims to measure degradation through the analysis of the database from the 'Degradation, Measurement and Modeling (DMM)' project of PECC/UnB, which includes various samples for the study of degradation. To expand the database, field inspections of four buildings located in Brasília were carried out, and a drone was used to obtain images. After the anomalies are identified, the facade damages are quantified using the Degradation Measurement Method (DMM). Therefore, with the quantification of the anomalies, it is possible to propose a degradation indicator for mortar facades. For this, severity levels for each of the anomalies are proposed. The methodology also relies on the calculation of degradation indicators, such as the General Damage Factor (FGD), the Damage Factor (FD), the Equivalent Damage Factor (FD equivalent), and the severity level, taking into account in the analysis parameters that can influence the extent of degradation, such as the age and orientation of the facade. In addition to relating it to the service life.