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Itens para a visualização no momento 11-17 of 17
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 ...
Remoção de bactérias e genes de resistência a antibióticos em estações de tratamento de águas residuais urbanas
(Universidade Federal de Santa Maria, 2019-02-28)
The spread of antibiotics bacterial resistance is a subject of great concern for public and
environmental health, caused mainly by the indiscriminate use of antibiotics and the incorrect
discard of ...
Previsão hidroambiental integrada do sistema hidrológico do Taim e lagoa Mirim – RS
(Universidade Federal de Santa Maria, 2019-11-07)
The Taim Wetland (BT), located in the extreme south of Brazil, in a region characterized by recurrence of conflicts over water use, which involve region's main economic activity, flood irrigated rice cultivation, and ...
Desempenho hidrológico de revestimentos de concreto de cimento Portland aplicados a pavimentos permeáveis
(Universidade Federal de Santa Maria, 2019-12-06)
The urbanization, associated with the population growth, is responsible for waterproofing surfaces, which increases inundation events frequency. To ease these problems, among other actions, come permeable pavements. This ...
Efeitos sinérgicos de adições minerais em concretos por empacotamento de partículas: resistência à compressão axial, microestrutura e absorção de água
(Universidade Federal de Santa Maria, 2019-10-10)
This research aims to study the physical, chemical and synergistic effects of lime filler (LF), fly ash (FA) and rice husk ash (RHA) addition in concretes dosed from particle packing theories. Both mixtures alone (binary ...
Compressibilidade de resíduos sólidos urbanos devido aos processos de biodegradação em um aterro sanitário
(Universidade Federal de Santa Maria, 2019-01-14)
The municipal solid waste (MSW) contain a high content of organic matter, which generates leachate and gases due to biodegradation processes, resulting in settlements. Storage capacity and slope stability are among the ...
Processos adsortivos aplicados à desfluoretação de água subterrânea para abastecimento humano
(Universidade Federal de Santa Maria, 2019-04-26)
Fluoride (Fˉ) is an element that is commonly present in groundwater, and that in excessive
concentrations may make it unfit for consumption. Contamination of groundwater by fluoride
ions may occur through natural processes ...