http://repositorio.unb.br/handle/10482/54591| Arquivo | Descrição | Tamanho | Formato | |
|---|---|---|---|---|
| AnaLuizaRochaDeSouza_TESE.pdf | 2,96 MB | Adobe PDF | Visualizar/Abrir |
| Título: | Comportamento evolutivo da degradação em fachadas de revestimento cerâmico |
| Autor(es): | Souza, Ana Luiza Rocha de |
| Orientador(es): | Bauer, Elton |
| Assunto: | Fachadas de edificações - agentes de degradação Revestimento cerâmico Engenharia civil |
| Data de publicação: | 4-Jun-2026 |
| Data de defesa: | 17-Dez-2025 |
| Referência: | SOUZA ,Ana Luiza Rocha de. Comportamento evolutivo da degradação em fachadas de revestimento cerâmico. 2025. 179 f., il. Tese (Doutorado em Estruturas e Construção Civil) — Universidade de Brasília, Brasília, 2025. |
| Abstract: | The facades have important functions in a building that go beyond aesthetics, such as ensuring performance and durability. Directly influenced by the incidence of agents, the process of facade degradation occurs in an evolutionary way being able to cause a reduction in service life, emergence and evolution of anomalies, and performance drop. In addition to the action of the mechanisms, the degradation in the systems that compose the facade depends on the degree of exposure to agents and how the mechanisms act under different conditions and material typologies. Given the importance of the subject and the need for more detailed and accurate information on the degradation process, this research aims to evaluate how the degradation behaves with the evolution of time in ceramic cladding facades, being attentive to the occurrences that make the process distinct and heterogeneous. Data is obtained through inspection of facades, which are divided into samples. The quantification of samples is done through the DMM, Degradation Measurement Method, and its main degradation indicator is the General Degradation Factor (FGD). The degradation differentiation is monitored in samples of facades with ceramic cladding in Brasilia, by dividing into 12 ranges based on the FGD values of the analyzed samples. The sample classified in the 12 degradation ranges includes differentiation in age, orientation, degree of exposure, and velocity of degradation, which are the main variables when studying the degradation of elements and façade systems. When the degradation is quantified, it is possible to observe different behaviors showing that the evolution of the degradation is not a homogeneous and uniform occurrence. The study identifies that, influenced by several factors and variables, degradation results in distinct phases that can be understood by analyzing age, orientation, degree of exposure, velocity, and anomalies. In more advanced stages of degradation, the manifestation of various anomalies is common due to the interaction and synergy between agents and mechanisms. There is a clear differentiation in the degradation process over time when variables such as the agents and mechanisms involved, age, degree of exposure, and velocity of degradation are analyzed. The study divides the evolutionary process of degradation into three distinct phases: initiation, propagation, and acceleration. One of the main characteristics observed in the evolution of degradation is the way in which the anomalies manifest themselves, varying the affected area and overlapping anomalies. Detailed analysis of the degradation process in ceramic cladding facades allows for more assertive maintenance and repair actions, which can result in a longer lifespan and ensure its functionality. |
| Unidade Acadêmica: | Faculdade de Tecnologia (FT) Departamento de Engenharia Civil e Ambiental (FT ENC) |
| Informações adicionais: | Tese (doutorado) — Universidade de Brasília, Faculdade de Tecnologia, Departamento de Engenharia Civil e Ambiental, 2025. |
| Programa de pós-graduação: | Programa de Pós-Graduação em Estruturas e Construção Civil |
| Agência financiadora: | Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) |
| Aparece nas coleções: | Teses, dissertações e produtos pós-doutorado |
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