Buscar
Itens para a visualização no momento 11-20 of 31
Estudo da microestrutura do concreto com adição de cinza de casca de arroz residual sem beneficiamento
(Universidade Federal de Santa Maria, 2008-05-07)
The use of mineral adition in concrete is a widely studied theme for several researchers that looking for features
like: save cement for reducing costs, durability improvement to increase mechanical strenght and use ...
Efeitos nas propriedades mecânicas, elásticas e de deformação em concretos com altos teores de escória e cinza volante
(Universidade Federal de Santa Maria, 2009-03-12)
The use of byproducts and industrial waste as pozzolanic, is an alternative to achieve the sustainability, economy and durability in concrete structures. This survey has as its purpose to analyze the effect on mechanical, ...
Estudo comparativo de ciclo de vida e custo de pilar com diferentes traços de concreto
(Universidade Federal de Santa Maria, 2014-06-26)
The sustainability of concrete structures is fundamental in search for sustainability
in construction sector, since this material composed most of Brazilian works. Therefore,
it is necessary information about environmental ...
Durabilidade do concreto com cinza de casca de arroz natural sem moagem: mitigação da reação álcali-sílica e penetração de cloretos
(Universidade Federal de Santa Maria, 2011-05-06)
Natural rice husk ash (RHA) used in concrete contributes to civil construction sustainability. In fact, RHA is considered a residual pollutant and then it is necessary to destine this material correctly. However, it is ...
Carbonatação acelerada em concretos com adição de cinzas de lodo de estação de tratamento de água
(Universidade Federal de Santa Maria, 2016-07-14)
Carbonation is a natural phenomenon for concrete structures and occurs due to the reaction between CO2, which is concentrated in the environment, and Ca(OH)2, which is present in the cementitious matrix. Carbonation reaction ...
Propriedades mecânicas e retração do concreto com adição de cinza de casca de arroz natural, sem beneficiamento de moagem
(Universidade Federal de Santa Maria, 2009-02-28)
To present research has for objective investigate the technical feasibility of the job of rice husk ask ungrounded, in concretes for structural ends. This study tries the mechanical properties of axial compression strength, ...
Avaliação de habitações construídas com painéis de PVC preenchidos com concreto
(Universidade Federal de Santa Maria, 2015-01-09)
Brazil has a high deficit of housing. However, it is known that adequate housing condition may reflect in improvements in the quality of life of the population. Aiming the solution of this problem and the delivery of ...
Carbonatação acelerada em concretos compostos com cinza de casca de arroz de diferentes teores de carbono grafítico
(Universidade Federal de Santa Maria, 2014-02-28)
Carbonation is a natural phenomenon observed in carbon structures, and it is a result of the combined presence of CO2 in the environment and moisture. Carbonation may lower the pH of the concrete to such an extent that the ...
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 ...