Precast Production
Mostrando 1-12 de 15 artigos, teses e dissertações.
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1. 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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2. Utilização da cinza do bagaço da cana-de-açúcar como agregado miúdo em concretos para artefatos de infraestrutura urbana
Brazil is the main sugarcane world-producer and it is the leader in all segments (sugarcane, sugar and alcohol). The waste consisting of sugarcane bagasse is produced at the end of grinding process and it is used to generate energy through burning in boilers. At the end of burning, the ashes of bagasse are often thrown into environment improperly. In this co
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 16/12/2011
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3. Pontes em estruturas segmentadas pré-moldadas protendidas: análise e contribuições ao gerenciamento do processo construtivo / Bridges in precast prestressed segmented structures: analysis and contributions to the management of the construction process
Este trabalho tem por objetivo contribuir para a melhoria do gerenciamento do processo construtivo de execução de pontes e viadutos em estruturas segmentadas pré-moldadas protendidas, construídas em balanços sucessivos, com base em uma análise das metodologias adotadas e verificando a viabilidade de implantação de um modelo nos processos de gestão q
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 14/08/2009
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4. Um modelo de gestão de resíduos sólidos: aplicação em indústria de artefatos e pré-moldados de concreto / A model of solid wastge management: application in artifact and pre cast concret industry
The productive chain of the construction industry is responsible for many positive and negative impacts on the built environment. One of the negative impacts refers to the high amount of waste produced, which can be reduced through the industrialization of construction, that is, through the reduction of services at construction sites and transferring them to
Publicado em: 2009
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5. Estudo experimental de consolos de concreto com fibras moldados em etapas distintas dos pilares / Experimental research of reinforced fiber concrete corbels shaped in distinct stage to the column
The industrial production of traditional corbel presents some difficulties due to the great quantity of reinforcement in a small space. Beyond the main bars, it is generally used vertical and horizontal stirrups. This experimental study proposes a corbel shaped in the prior stage to the column, with the reinforcement and surfaces prepared to the later connec
Publicado em: 2009
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6. Dosagem do concreto auto-adensável: produção de pré-fabricados. / Self-compacting concrete mix design: precast production.
This work focus the technology of the self-compacting concrete SCC, applied to the precast production. The main innovation was the contribution made to the IBRACON Method, which is widely utilized in Brazil for conventional concrete design, from the new proposed design methodology for SCC, which considers two main innovations. The first one was the concept o
Publicado em: 2008
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7. Otimização de pavimentos de edifícios com estruturas de concreto pré-moldado utilizando algoritmos genéticos / Floor optimization in precast concrete building using GA
The precast concrete structures are more modular and standardized than the cast in place concrete structures, therefore optimization techniques can improve economics gain because of series production. Among the optimization techniques in structural engineering design, genetic algorithms have been recognized as a trend. This work aims the floor precast concre
Publicado em: 2007
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8. Principles and tools of lean thinking to achieve basic stability : implementation guidelines for the production process of concrete precast roof-tiles / Principios e ferramentas do lean thinking na estabilização basica : diretrizes para implantação no processo de fabricação de telhas de concreto pre-fabricadas
A implantação de novas técnicas de gestão no setor da construção civil, com base em princípios e ferramentas procedentes da indústria da manufatura, vem recebendo atenção crescente. A presente dissertação tem como objetivo mostrar a extrapolação de métodos aplicados na manufatura o que é apresentado utilizando diretrizes baseadas no lean thin
Publicado em: 2007
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9. Análise estrutural de lajes pré-moldadas produzidas com concreto reciclado de construção e demolição.
The use of recycled concrete with substitution of the natural aggregate by recycled aggregate from construction and demolition waste (CDW) is one of the most promising alternatives for reduction of the environmental impact of the construction industry. However, for this solution be applied in wide scale it is necessary that new material can be used in the pr
Publicado em: 2007
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10. Uso de agregados reciclados de concreto em blocos de alvenaria estrutural / Use of recycled concrete aggregates in blocks of structural masonry
The main goal of the present research project was the evaluation of recycled concrete aggregates incorporation in structural concrete blocks of three different levels of compressive strength (4,5 MPa, 8,0 MPa and 12,0 MPa). The study was developed in four stages. The first stage analyzed the physical properties of fine and coarse concrete aggregates derived
Publicado em: 2007
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11. Evaluation of physical and mechanical properties of steam cured concrete made with high early strenght Portland cement and blastfurnace slag cement containing silica fume / Avaliação das propriedades fisicas e mecanicas de concretos produzidos com os cimentos Portland de alta resistencia inicial e de alto-forno aditivados com silica ativa curados termicamente
The durability of concrete structures depends on porous structure and its impermeability. The entrance of water and deleterious agents begin the damage processes and reduce the life of the concretestructure. ln that way, the aim of this work was to evaluate the mechanical resistance, permeability, absorption and natural carbonation of concretes submitted to
Publicado em: 2005
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12. Lattice-reinforced joist slabs cost considering production, transport, assembly and casting / Custos de lajes formadas por vigotas treliçadas considerando a produção, o transporte, a montagem e a concretagem
The use of slabs formed by prefabricated elements in structures of pavements becomes more and more spread in the Brazilian market, mainly lattice reinforced joists. This work purposes to analyze the costs involved in the production process of lattice reinforced joists, during transport, assembly and slab casting. The cost _expression obtained was analyzed in
Publicado em: 2005