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Itens para a visualização no momento 21-30 of 105
Estudo de concretos com pozolanas submetidos à carbonatação em ensaios acelerado e natural monitorado por 20 anos
(Universidade Federal de Santa Maria, 2019-09-02)
Carbonation, a potentially aggressive chemical reaction to concrete, is a slow process and difficult to detect in the short term through accelerated testing. In this work were studied concretes with fly ash (CV) and rice ...
Impactos das atividades antrópicas na qualidade da água da bacia hidrográfica do rio Vacacaí Mirim – RS
(Universidade Federal de Santa Maria, 2019-08-02)
This study was carried out to analyze the impacts of anthropogenic activities on the water quality of the Vacacaí Mirim river basin, located in the municipality of Santa Maria - RS, which is a tributary of the dam (or ...
Deformações e modo de ruptura em prismas de blocos de concreto: análise experimental com extensometria e correlação de imagem
(Universidade Federal de Santa Maria, 2019-12-06)
Evaluating deformations that constituent materials of structural masonry suffer has been the focus of researchers around the world. Structural masonry is a structural system that has a behavior difficult to predict because ...
Avaliação da angularidade de agregados miúdos de diferentes litologias para uso em pavimentação
(Universidade Federal de Santa Maria, 2019-08-30)
Aggregates are of great importance in the composition of asphalt concrete mixtures (AC) occupying a volume between 80 and 90% of the total volume, where angularity interferes with the performance of asphalt coatings. This ...
Análise de irradiação solar em um campus universitário no sul do Brasil
(Universidade Federal de Santa Maria, 2019-11-11)
This research aims to evaluate the behavior of solar irradiation by geographic information system (GIS) on the campus of the Federal University of Santa Maria, in the city of Santa Maria, south of Brazil. In order to ...
Avaliação de propriedades físico-mecânicas de concretos com fíler calcário, em altos teores, cinza de casca de arroz e ativadores
(Universidade Federal de Santa Maria, 2019-11-06)
Construction is one of the largest sectors of the economy by virtue of meeting basic demands. The main material the construction activities is Portland cement. It is known that its substitution by mineral additions provides ...
Estudo experimental de um compósito de argamassa utilizando cinza e casca de arroz, aplicado em blocos de vedação
(Universidade Federal de Santa Maria, 2019-05-10)
Sustainable Development is linked with a tripod: serving basic needs, shortage of natural resources and economic growth. In order to make it compatible with the principles of sustainability, this study focused on the ...
Efeito de escala em telhados verdes extensivos
(Universidade Federal de Santa Maria, 2019-02-25)
In the urban environment, where the permeable areas are gradually occupied by impermeable spaces, natural hydrological processes are also subject to changes. These impermeable surfaces promote the increase of the surface ...
Tempo de concentração e parâmetros da metodologia da curva número: uma avaliação para bacias brasileiras
(Universidade Federal de Santa Maria, 2019-08-05)
Among the available models for design flows estimation, the Curve-Number (CN)
method in conjunction with the Triangular Unit Hydrograph Method (HUT) is
highlighted. These are widely used methods, but there are also ...
O efeito dos aditivos incorporador de ar e estabilizador de hidratação nas propriedades das argamassas estabilizadas
(Universidade Federal de Santa Maria, 2019-12-13)
entraining admixtures (AEA) and hydration stabilizing admixtures (HSA) modify the
properties of mortar. The main effect of an AEA is increased workability, while an HSA
extends the setting time. However, the full effects ...