Structural Lightweight Concrete
Mostrando 1-12 de 13 artigos, teses e dissertações.
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1. Study about concrete with recycled expanded polystyrene
Resumo O concreto leve obtido com adição de partículas de poliestireno expandido (EPS) é conhecido como concreto com EPS. Estudaram-se neste trabalho as propriedades de concretos com adição de EPS para uso em paredes estruturais. O EPS por ser um material produzido em larga escala e possuir baixa densidade, produz um grande volume de resíduos. Esses r
Rev. IBRACON Estrut. Mater.. Publicado em: 13/12/2019
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2. Application of Support Vector Machine and Finite Element Method to predict the mechanical properties of concrete
Abstract Compressive strength and Young’s modulus are the main properties used in the design of concrete structures. They are responsible for the cost, safety and dimensioning of the structure, and are generally measured in expensive and time-demanding tests. This fact encourages researches for fast and cost-effective methods to investigate the concrete’
Lat. Am. j. solids struct.. Publicado em: 12/08/2019
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3. Calcined Clay Lightweight Ceramics Made with Wood Sawdust and Sodium Silicate
This paper aims to study the influence of including wood sawdust and sodium silicate in the production process of calcined clay lightweight ceramics. In the production process first, a sample used by a company that produces ceramic products in Brazil was collected. The sample was analysed by techniques of liquidity (LL) and plasticity (LP) limits, particle s
Mat. Res.. Publicado em: 17/10/2016
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4. Fracture behavior of polymeric fiber reinforced lightweight structural concrete
A study has been made of the effect of short randomly dispersed polypropylene fibers on the fracture behavior of lightweight structural concrete. Using unnotched and precracked beams subjected to bend loading, it was possible to determine the toughness factor TF and to estimate specific J integral parameters, namely J IC and J MAX corresponding to the onset
Mat. Res.. Publicado em: 2014-12
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5. Waste steel wires modified structural lightweight concrete
Nowadays, the use of different waste fibers in concrete has started to increase rapidly due to some reasons such as economic savings and positive effects on the environment. In this study, waste steel wires taken from reinforcement and formwork which were previously utilized in construction projects, were employed in structural lightweight concrete (SLWC). T
Mat. Res.. Publicado em: 28/07/2014
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6. Dynamic response of low frequency Profiled Steel Sheet Dry Board (PSSDB) floor system
Slender structural floors could experience irritating vibration problems due to human walking load and so, vibration acceptability of such floors is an essential subject in addition to the usual strength criterion. This paper focuses on the dynamic response of a lightweight composite structural system known as Profiled Steel Sheet Dry Board (PSSDB) to evalua
Lat. Am. j. solids struct.. Publicado em: 2013-11
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7. Agregado leve de argila calcinada para uso em concreto estrutural: viabilidade de cerâmica vermelha do Estado de São Paulo / Calcined clay lightweight aggregate for use in structural concrete: viability of the red ceramic from the state of São Paulo
Este trabalho tem por objetivo o estudo da viabilidade da utilização de cerâmica vermelha para a confecção de agregados leves de argila calcinada para utilização em concretos estruturais. Inicialmente, foram coletadas amostras de solo de cinco diferentes empresas produtoras de cerâmica vermelha do estado de São Paulo. As massas cerâmicas foram cara
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 26/11/2012
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8. 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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9. Efeito da adição de argila expandida e adições minerais na formulação de concretos estruturais leves autoadensáveis
A busca por materiais alternativos de menor massa específica, redução na transferência de calor e propagação do barulho, associado à facilidade de manuseio e aplicação em estruturas de concreto armado, representa grande desafio na formulação e conhecimento do desempenho de concretos estruturais leves autoadensáveis, que tem tecnologia pouco difun
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 10/02/2011
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10. Composite steel and concrete beam constituted by filled cold-formed steel section / Viga mista de aço e concreto constituída por perfil formado a frio preenchido
The composite steel and concrete beams have been largely applied in buildings and bridges constructions, having also a large amount of theoretical and experimental investigations about the use of hot-rolled and welded shapes and shear connectors that are compatible with these members, as for an example, the stud bolt and channel connectors. In the cold-forme
Publicado em: 2009
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11. Influência de parâmetros microestruturais na durabilidade de concretos leves produzidos com argila expandida
The low relation strength-weight of concrete, when compared to steel, constitutes a disadvantage of that material when applied in the construction. To improve this relation we can reduce the specific gravity of the concrete or increase its strength. Nowadays,lightweight concrete has been used in a larger scale for structural purposes and for reduction of the
Publicado em: 2007
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12. High performance latex-modified lightweight aggregate concrete for thin precast components - dosage, production, properties and microstructure / "Concreto leve de alto desempenho modificado com SB para pré-fabricados esbeltos - dosagem, produção, propriedades e microestrutura"
This dissertation deals with the application of the high performance lightweight aggregate concrete (HPLWAC) for the production of thin precast components, such as structural and insulation panels and elements for covering. A concrete with special properties was presented, once the use of styrene-butadiene latex (SBR), silica fume, accelerating superplastifi
Publicado em: 2003