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Concretos com altos teores de filer calcário em misturas binárias e ternárias com cinza volante: resistência à compressão mecânica, microestrutura e sustentabilidade
(Universidade Federal de Santa Maria, 2021-08-19)
The cement industry produces about 5% of all CO2 emissions that contribute to greenhouse gases, which represents a significant number compared to the worldwide magnitude of its production, with the respective effects of ...
Definições tecnológicas para construção de habitações em zonas rurais
(Universidade Federal de Santa Maria, 2022-04-20)
The present document reports the structural design made in reinforced concrete and in structural masonry of a terrestrial residence, generating quantitative tables about the materials that must be used to compose the best ...
Otimização do desempenho de um concreto convencional vibrado a partir do ajuste do empacotamento dos agregados
(Universidade Federal de Santa Maria, 2022-03-29)
This undergraduate thesis presents a study of the packing particles of a conventional vibrated concrete of 10 MPa at 90 days used in the construction of a small hydroelectric power plant, in order to reduce the cement ...
Comportamento mecânico de concretos com substituição parcial de cinza de casca de arroz e adição de fibras de aço em altas temperaturas
(Universidade Federal de Santa Maria, 2020-01-09)
The incorporation of rice hush ash (RHA) into concrete create benefits for its durability in usual situations, because it leads to the refinement of the pore structure. However, on unusual situations, such as a fire, the ...
Análise microestrutural de concretos com substituição parcial de cinza de casca de arroz em altas temperaturas
(Universidade Federal de Santa Maria, 2021-01-21)
The usage of supplementary cementitious materials, such as rice husk ash (RHA), as a partial replacement of Portland cement is commonly studied and at room temperature may provide mechanical strength and durability to ...
Estudo de carbonatação em concreto armado: causas, diagnósticos e proposta de soluções
(Universidade Federal de Santa Maria, 2023-02-09)
Concrete carbonation is one of the most frequent pathologies in reinforced concrete structures, it consists of the reaction that occurs when the carbon dioxide in the concrete present in the atmosphere penetrates the ...