EM - Escola de Minas
URI permanente desta comunidadehttp://www.hml.repositorio.ufop.br/handle/123456789/6
Notícias
A Escola de Minas de Ouro Preto foi fundada pelo cientista Claude Henri Gorceix e inaugurada em 12 de outubro de 1876.
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2 resultados
Resultados da Pesquisa
Item Residues in cement-based composites : occurrence mapping in Brazil.(2023) Lopes, Carolina de Melo Nunes; Mendes, Vítor Freitas; Garcia, Danielle Rios; Mendes, Júlia CastroScientific articles related to the incorporation of residues in civil construction materials are growing worldwide, although their practical application is still incipient. In this scenario, this paper produced an occurrence map of the most studied residues in Brazil when incorporated in cement-based composites. Initially, the most relevant residues were identified through a bibliometric analysis on the Scopus database, using the software VOSviewer. This analysis included scientific papers from Brazilian institutions published from 2001 to 2022 regarding the development of cement-based composites using residues, wastes, or tailings. Subsequently, to map the occurrence of these materials in each Brazilian state, we used public and private data on the country’s industrial production and waste disposal. From 1272 articles analyzed, we identified 49 residues with at least 2 citations. Among the most cited residues in Brazilian publications are construction and demolition waste, rice husk, glass waste, sugarcane bagasse, and tire rubber residue. The authors noticed the heterogeneity of the occurrence of the residues across the large Brazilian territory and found gaps on research trends involving them. These and other observations facilitate the decision-making process regarding logistics and investments related to the reuse and recycling of these materials.Item Identification of the origins and risks of pathologies in steel structure buildings using total quality management tools.(2022) Hofmann, Giane Alfenas Antunes; Souza, Henor Artur deThe steel structure construction is an interesting option to the already established concrete structure at a time when the Brazilian civil construction seeks more efficiency. To promote the use of this material it is necessary to have a better understanding of its characteristics and, especially, of its possible pathologies, to avoid degradation, costs, and even the collapse of the structure. In this study Total Quality Management tools were applied to analyze the pathologies found in five medium and large steel-structured buildings. The most frequent ones were structure corrosion, cracks in the closures, and infiltrations in the interface closure/structure. The Ishikawa Diagram is used to identify the origin of the causes of pathologies and the Gravity Urgency Tendency Matrix (GUT Matrix) is used inthe risk analysis of each pathology. The results obtained show that it is possible, through these Quality Management tools, to understand the origin of the pathologies, establishing their dangerousness and the degree of risk each one offers.