Chemical Admixtures
Mostrando 1-7 de 7 artigos, teses e dissertações.
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1. Midazolam and haloperidol for palliative sedation: physicochemical stability and compatibility of parenteral admixtures
This study was done to determine the time while the binary admixtures with midazolam and haloperidol drugs are administered by perfusion to the patients in the clinical routine. Samples with different concentrations of both drugs were prepared following the usual clinical practice. Solvents used were 0.9 % sodium chloride solution and 5% dextrose, and viaflo
Braz. J. Pharm. Sci.. Publicado em: 09/09/2019
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2. Análise da fluência do concreto massa nas primeiras idades de carregamento : influência de aditivos plastificantes e adições minerais / Creep analysis of mass concrete at early ages at loading: influence of chemical and mineral admixtures
Estruturas de concreto mais arrojadas têm sido executadas ao longo das últimas décadas, utilizando-se de projetos e técnicas construtivas cada vez mais avançadas, às quais, por sua vez, procuram manter a qualidade na execução da obra e proporcionar maior durabilidade e rapidez na entrega do empreendimento. Dentro deste contexto evolutivo, também se
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2011
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3. Adição de poliuretana em pastas de cimento para poços de petróleo como agente de correção do filtrado
Chemical admixtures, when properly selected and quantified, play an important role in obtaining adequate slurry systems for quality primary cementing operations. They assure the proper operation of a well and reduce costs attributed to corrective cementing jobs. Controlling the amount lost by filtering through the slurry to permeable areas is one of the most
Publicado em: 2008
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4. Análise da viabilidade do uso de cinzas agroindustriais em matrizes cimentícias: estudo de caso da cinza da casca da castanha de caju / Feasibility analysis of using agroindustrial ashes in cementitious materials: case study of ash of the rind of the cashew nut
Nowadays, the use of wastes on civil building has been stimulated for it to be one of most consumers of raw materials in their processes and products. The agroindustrial ashes have a prominent place among the wastes with possibilities of application in cementitious materials, because some ashes, such rice husk ash, have pozzolanic activity, and they contribu
Publicado em: 2008
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5. Aplicações de cargas minerais em polímeros. / Application of minerals fillers in polymers.
The mineral fillers have been used in admixtures with a large variety of polymers called composites with the purpose not only of reducing their prices but mainly due to the improvements of their physical and chemical characteristics. The polymer manufacturers have been looking for the development of new types of polymers and composites in a battle driven by
Publicado em: 2007
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6. Efeito de adições ativas na mitigação das reações álcali-sílica e álcali-silicato. / Effect of mineral admixtures in controlling the alkali-silica reaction and alkali-silicate reaction.
The alkali-aggregate reaction is a pathologic manifestation that can induce the premature distress and loss in serviceability of concrete structures affected. It is directly associated to the selection of materials (cement, coarse and fine aggregates, water and additives), as the interaction between these materials and environmental condition will grant the
Publicado em: 2007
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7. Tracking of the kinetic stability of 2 types of total nutrient admixtures containing different lipid emulsions
The physical stability of 2 types of total nutrient admixtures was studied as a function of storage time and temperature. One of them contained only structured triglycerides and the other exclusively long-chain triglycerides as lipid components. To evaluate the possible changes in the kinetic stability of the emulsions and in the surface characteristics of t
Springer-Verlag.