Expanded Polystyrene
Mostrando 13-24 de 29 artigos, teses e dissertações.
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13. Resistance of sweet potato clones to meloidogyne incognita races 1 and 3
The objective of this study was to evaluate sweet potato clones for resistance to root-knot nematode, Meloidogyne incognita races 1 and 3. For each nematode physiological race, a greenhouse experiment was set up in a randomized block experimental design with three replications and six plants per plot. Fifty-eight sweet potato clones from the UFVJM germplasm
Bragantia. Publicado em: 28/07/2015
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14. Behavior in simulated soil of recycled expanded polystyrene/waste cotton composites
Composites consisting of waste cotton yarn (CF) from the textile industry and postconsumer expanded polystyrene (EPS) was followed during 90 days of exposure in simulated soil. The mechanical properties, morphologies and chemical natures of the composites were determined before and after exposure in simulated soil. The composites were made using a single-scr
Mat. Res.. Publicado em: 11/10/2013
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15. Concreto ultraleve® estrutural com pérolas de EPS: caracterização do material e estudo de sua aplicação em lajes / Structural ultra lightweight concrete with EPS beads: material characterization and study of its use in slabs
The use of lightweight concrete is mainly due to the benefits provided by reducing the density of the material such as smaller efforts on structures, economy of molds and scaffolding, as well as lower costs of transportation and erection of precast constructions. Currently, besides the technical and economic issues, the choice of building materials should ta
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 19/10/2012
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16. Painéis-sanduíche com núcleo de EPS reciclado: metodologia de execução e determinação de propriedades termofísicas
Novos materiais desenvolvidos a partir de resíduos industriais vêm sendo estudados como alternativa aos modelos tradicionalmente empregados na construção civil. Para desenvolvimento desses materiais são considerados fatores como: custo, eficiência e redução de passivo ambiental. No caso específico de materiais para aplicação em habitações situad
Publicado em: 2010
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17. Estádio de maturação dos frutos, tratamentos pré-germinativos e variabilidade da emergência de plântulas de morototó (Schefflera morototoni)
The objective of this work was to evaluate the influence of the fruit maturation stage in the physical attributes and germination of Schefflera morototoni pyrenes subjected to pre-germination treatments. Fruits with green and purplish green coloration were collected from 14 individuals, pulped in running water, the hollow pyrenes were discarded after countin
Publicado em: 2010
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18. Estudo térmico de um sistema solar de aquecimento de água residencial para duas configurações de superfície absorvedora
It presents a solar collector to be used in a system for heating water for bathing, whose main characteristics are its low cost and easy manufacturing and assembly. The absorbing surface of the collector is formed by an aluminum plate with eight flaps where they lodge PVC pipes. The catchment area of solar radiation corresponds to 1.3 meters. The collector b
Publicado em: 2009
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19. Análise comparativa de custos de alternativas tecnológicas para construção de habitações populares
The current Brazilian housings deficit is about 7,2 million of housings which is equivalent to 12,8% of the total of domiciles of the country, in accordance with the last National Research of Sampling of Domiciles (PNAD) carried through by the IBGE in 2008. Although Brazilian housing deficit should be considered an important problem to deal with, data from l
Publicado em: 2009
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20. Estudo proteômico do efeito da atmosfera modificada na estabilidade da cor e na vida útil da carne suína acondicionada em embalagens de transporte tipo masterpack sob refrigeração / Proteomics study of the effect of modified atmosphere on colour estability and shelf life of pork meat wrapped in masterpack transport packages under refrigeration
The aim of this work was to study the effect of modified atmosphere associated to "masterpack" transport packages in the shelf-life of refrigerated pork meat. Microbiological, physical-chemical, biochemical and visual analyses were made. Pork loin (Longissimus dorsi) cuts placed in trays of expanded polystyrene, covered with poly(vinyl chloride) films were u
Publicado em: 2009
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21. Characterization of geotechnical behavior of EPS through mechanical and hydraulic tests / Caracterização do comportamento geotécnico do EPS através de ensaios mecânicos e hidráulicos
O poliestireno expandido (EPS), conhecido popularmente no Brasil como Isopor®, foi introduzido recentemente no país como material de baixa massa específica para construções de aterros, principalmente sobre solos moles, e encontro de pontes. Contudo, ainda não há experiência consolidada deste material em ensaios do ponto de vista da engenharia geotéc
Publicado em: 2008
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22. ResistÃncia, densidade e desempenho termo-acÃstico do concreto com espuma de poliestireno expandido (EPS) aplicado Ãs construÃÃes / Resistance, density and thermal-acoustic performance of concrete with foam from expanded polystyrene (eps) applied to buildings
O uso de embalagens de poliestireno expandido (EPS) tem contribuÃdo para a produÃÃo de resÃduos sÃlidos no meio rural e urbano, gerando impactos ambientais considerÃveis, por seu descartado na natureza ou em lixÃes, pois esse material demora, aproximadamente, cem anos para se degradar. Uma das soluÃÃes à o uso desse resÃduo como agregado no concre
Publicado em: 2008
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23. Experimental nervuradas smooth flagstone analysis of reinforcement concrete with shear armor / Análise experimental de lajes lisas nervuradas de concreto armado com armadura de cisalhamento
Two-way waffle flat slabs are structural elements of reinforced concrete supported directly on columns, under bending moments over the two directions, they improve the speed of the execution and save moulds and concrete and, consequently, labor. This work seeks to contribute for the study of the behavior of this kind of slab, as the shear resistance of the r
Publicado em: 2007
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24. Desenvolvimento de embalagem biodegradável tipo espuma a partir de fécula de mandioca. / Development of biodegradable packaging, a starch foam, obtained by cassava starch.
The objective of this project is the development of biodegradable food packaging, starch foam, made by cassava starch. Starch foam was obtained with a batter of starch, water and additive, through thermo expansion process. Formulation study was divided in three parts: the first step was to verify the starch quantity influence in the starch foam and five form
Publicado em: 2007