http://repositorio.unirn.edu.br/jspui/handle/123456789/13 Wed, 22 Apr 2026 18:01:26 GMT 2026-04-22T18:01:26Z http://repositorio.unirn.edu.br/jspui/handle/123456789/1362 Título: Análises e utilizações de argamassas poliméricas termoplásticas Resumo: This study investigated the use of waterproofing systems based on thermoplastic polymers through laboratory tests and a real case study. The main objective was to analyze the effectiveness of the Acrylic Texture in terms of adhesion, watertightness, and thermal resistance, assessing its potential as an alternative to traditional methods. In the pull-off adhesion tests, the average results exceeded the minimum normative limit of 1.0 MPa at 28 days, with acrylic-painted substrates achieving values above 1.5 MPa. In the qualitative watertightness test, water repellence and lack of absorption were observed, confirming the formation of an effective hydrophobic barrier. The thermal resistance test demonstrated stability of the acrylic texture up to 80 °C, while other products showed limitations at higher temperatures. The case study, conducted in a private condominium, demonstrated the practical applicability of the BS POWER (ITE) product, manufactured by BSCRYL, applied to submerged pool walls, showing satisfactory performance after substrate repair. Among the advantages, the study highlights the ease of application, increased productivity, and optimization of labor, as well as cost reduction due to the elimination of the protective coating layer required in conventional systems. As a limitation, the absence of a specific Brazilian technical standard defining performance and testing criteria restricts the standardization and broader acceptance of this technology. It is concluded that thermoplastic polymer waterproofing systems represent a relevant innovation, contributing to more durable and cost-effective buildings, and should be considered as a viable alternative in the waterproofing of concrete structures. Type: Trabalho de Conclusão de Curso Wed, 10 Dec 2025 00:00:00 GMT http://repositorio.unirn.edu.br/jspui/handle/123456789/1362 2025-12-10T00:00:00Z http://repositorio.unirn.edu.br/jspui/handle/123456789/1114 Título: Análise de durabilidade das barras de fibra de vidro comparada com as barras de aço CA-50 e CA-60 Resumo: To ensure the final quality in civil construction, it is necessary to use materials that contribute to improving results through technological advances. One of these materials is fiberglass used as bars in concrete structures. These rebars can be used in several ways, providing an increase in tensile strength for reinforced concrete structures. The main objective of this study was to demonstrate the greater durability of fiberglass bars in relation to CA-50 and CA-60 steel bars used in civil construction, through comparative physical and chemical analyses, characteristics and properties between steel and fiberglass rebars. A bibliographic review was carried out throughout the study, consisting of a review of the literature through descriptive and qualitative research, aiming to gather information and explore concepts related to the subject in a clear and objective way. In the methodology, several studies were carried out with bars, which were subjected to a common external environment, an environment submerged with hydrochloric acid, in a high-temperature oven and in a test specimen submerged in water. The following results were obtained: the fiberglass bar performed excellently in the external environment, and did not lose any properties or thickness when submerged in hydrochloric acid, maintaining its properties and diameter with a change in color toward red. When it was subjected to an environment of extreme temperatures (0-450ºC) in the oven, it suffered a great loss of properties and diameter, simulating a fire situation, becoming malleable. We conclude that fiberglass bars have greater durability than CA-50 and CA-60 steel bars. Type: Trabalho de Conclusão de Curso Thu, 12 Jun 2025 00:00:00 GMT http://repositorio.unirn.edu.br/jspui/handle/123456789/1114 2025-06-12T00:00:00Z http://repositorio.unirn.edu.br/jspui/handle/123456789/966 Título: Análise qualitativa e quantitativa do trabalho em altura e o gerenciamento dos riscos ocupacionais na construção civil na cidade de Natal/RN Resumo: This research develops an approach to evaluating work at heights and occupational risk management in the construction sector in Natal – RN. Using a methodology that combines qualitative and quantitative analyzes using a questionnaire, the research seeks to understand how local companies deal with safety when working at heights, taking Regulatory Standard 35 (NR35) as a reference. The investigation covers aspects such as planning, organization of procedures, training, use of individual and collective protective equipment, in addition to the working conditions offered, aiming to identify occupational risks and present an analysis of the protection of workers developed by these companies. The study is based on an on-site analysis of six companies in the municipality, seeking to verify the application of safety regulations in activities carried out above two meters, as mentioned in NR35. The research also highlights the importance of verifying whether companies have and apply the Risk Management Program – PGR, mandatory to develop accident prevention actions, in addition to seeking to reduce negative impacts through accidents involving workers. The expected results include evaluating the actions taken by companies in order to contribute to improving workplace safety management and strengthening the policy to protect workers from the occupational risks involved with the activity. The research carried out at works, after evaluating the planning, organization and execution of the NR35 guidelines, concluded that safety standards are being applied by companies in accordance with what is established in the Risk Management Programs (PGRs ). Prevention measures for working at heights, such as the use of Fall Protection Systems (SPQ), anchoring devices and safety belts, are implemented with the aim of ensuring the safety of workers. However, the analysis highlighted that, despite the application of these measures, rigorous monitoring of safety conditions and continuous training of professionals are still essential for the effectiveness of safety practices when working at heights. The research also highlighted operational flaws in the works visited, such as the lack of adequate monitoring and the lack of formal identification of qualified workers. Furthermore, it was observed that some workers, due to overconfidence acquired through experience, neglect the regular use of safety devices, compromising safety in the work environment. The research also classifies the challenges related to the rejection of compliance with standards and monitoring processes, highlighting the need for more attentiv e educational training and occupational safety fiscal measures to ensure adequate compliance with occupational safety and health guidelines. Type: Trabalho de Conclusão de Curso Wed, 11 Dec 2024 00:00:00 GMT http://repositorio.unirn.edu.br/jspui/handle/123456789/966 2024-12-11T00:00:00Z http://repositorio.unirn.edu.br/jspui/handle/123456789/917 Título: Utilização de argamassa industrializada de reboco para fachada Resumo: The use of pre-mixed plaster mortar for facade rendering has become an efficient and practical solution. This type of mortar is manufactured in an industrial setting, which ensures the standardization of its composition, unlike traditional site-mixed mortars that may present variations affecting performance. Its application reduces execution time and material waste. Another relevant benefit is sustainability, as controlled production decreases environmental impact. Thus, its adoption meets quality and productivity demands. This article aims to analyze the use of pre-mixed plaster mortar for facade rendering in company X’s constructions, highlighting its advantages and disadvantages concerning compressive strength, water absorption, and adhesion compared to conventional mortars. The methodology involved a literature review on the advantages of pre-mixed plaster mortar over traditional mortars, considering the performance of laboratory tests for compressive strength, adhesion, and water absorption, in accordance with standards (NBR 6136-2006, NBR 13281-2023, NBR 13528:2019). The results indicate that the pre-mixed plaster mortar for company X’s facade provides good compressive strength, averaging 2.2 MPa, good water absorption resistance, showing an average of only 2.18% absorption, reduces material waste, optimizes execution time, and improves the final finish. It is concluded that the use of this material is an efficient and sustainable alternative for facade rendering, contributing to improved productivity in the construction sector. Type: Trabalho de Conclusão de Curso Fri, 25 Oct 2024 00:00:00 GMT http://repositorio.unirn.edu.br/jspui/handle/123456789/917 2024-10-25T00:00:00Z