Self Compacting Concrete
Mostrando 13-24 de 50 artigos, teses e dissertações.
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13. Bolted Shear Connectors Performance in Self-Compacting Concrete Integrated with Cold-Formed Steel Section
Abstract In conventional composite construction involving hot-rolled steel section, the composite action is usually achieved by using conventional headed shear studs connectors. However, use of headed studs is not practical for cold-formed steel (CFS) section due to its very thin form that is difficult to weld. A suitable bolt and nut type shear connector wa
Lat. Am. j. solids struct.. Publicado em: 2016-04
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14. Effective low-energy mixing procedure to develop high-fluidity cementitious pastes
Preparing a high fluidity paste is a major step in ultra-high performance concrete (UHPC) development with respect to its self-compacting ability as well as its ultra-high strength. In this regard, some experiments have been carried out in order to study various superplasticizer (SP) addition methods and times. Among these procedures, stepwise and delayed me
Matéria (Rio J.). Publicado em: 2016-03
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15. Durability Enhancement Of SCC With Waste Glass Powder
Self compacting concrete (SCC) requires a large quantity of fine materials compared to common concrete. In this work waste glass powder was used to replace (50%) of filler required. Two types of SCC were manufactured, a control SCC type (CTL) using cement and limestone filler and another with glass powder replacing 50% of the filler. Mechanical and durabilit
Mat. Res.. Publicado em: 19/02/2016
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16. Fresh-state Properties of Self-compacting Mortar and Concrete with Combined Use of Limestone Filler and Fly Ash
AbstractThis paper presents the results of a study on the behaviour of self-compacting concrete (SCC) in the fresh and hardened states, produced with binary and ternary mixes of fly ash (FA) and limestone filler (LF), using the method proposed by Nepomuceno. His method determines the SCC composition parameters in the mortar phase (self-compacting mortar - SC
Mat. Res.. Publicado em: 2015-10
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17. Prediction of energy absorption capability in fiber reinforced self-compacting concrete containing nano-silica particles using artificial neural network
The main objective of the present work is to utilize feedforward multi-layer perceptron (MLP) type of artificial neural networks (ANN) to find the combined effect of nano-silica and different fibers (steel, polypropylene, glass) on the toughness, flexural strength and fracture energy of concrete is evaluated.For this purpose, 40 mix plot including 4 series A
Lat. Am. j. solids struct.. Publicado em: 2014-11
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18. Prediction of combined effects of fibers and nanosilica on the mechanical properties of self-compacting concrete using artificial neural network
In this research, the combined effect of nano-silica particles and three fiber types (steel, polypropylene and glass) on the mechanical properties (compressive, tensile and flexural strength) of reinforced self-compacting concrete(SCC) is evaluated. For this purpose, 70 mixtures in A, B, C, D, E, F and G series representing 0, 1, 2, 3, 4, 5 and 6 percent of
Lat. Am. j. solids struct.. Publicado em: 2014
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19. Impact of vibrations on the final characteristics of normal and self-compacting concrete
The quality and durability of normal concrete directly depends on the number and the shape of voids, so, in order to produce durable concrete, it is necessary to reduce the amount of air that is trapped inside the concrete, which is usually done by vibrating the concrete in the mixing stage or the casting stage. Self-compacting concretes are concretes that,
Mat. Res.. Publicado em: 17/12/2013
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20. Assessing flow response of self-compacting mortar by Taguchi method and ANOVA interaction
Self-compacting mortar (SCM) is a new generation product and has prospective use as an independent material as well as an integral constituent of self-compacting concrete (SCC). In this paper the flow response of self-compacting mortar is assessed by Taguchi method and ANOVA interaction. Effect of powder material and super-plasticizer on the relative flow in
Mat. Res.. Publicado em: 07/06/2013
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21. Avaliação de concreto auto-adensável com agregado reciclado de telha cerâmica / Evaluation of self-compacting concrete produced with the recycled aggregate tile
The increasing demand for raw materials in construction, especially those drawn from nature, is of great concern due to harmful impacts it produces. The use of recycled aggregates can be a sustainable and contribute to the preservation of natural resources, contributing to the sustainable development of the construction industry. The residue from the ceramic
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 27/08/2012
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22. Concreto auto-adensável: caracterização da evolução das propriedades mecânicas e estudo da sua deformabilidade por solicitação mecânica, retração e fluência. / Self-compacting concrete: characterization of the evolution of mechanical properties and study of its deformability under mechanical load, shrinkage and creep.
O concreto auto adensável (CAA) é um material novo cujas propriedades mecânicas precisam ser estudadas. Ele apresenta em sua composição maior quantidade de argamassa e agregados graúdos de menores dimensões, que podem torná-lo mais deformável que o concreto convencional. Em contrapartida, o melhor empacotamento das partículas no estado fresco do CA
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/04/2011
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23. 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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24. The effects of CuO nanoparticles on properties of self compacting concrete with GGBFS as binder
In this work, strength assessments and percentage of water absorption of high performance self compacting concrete containing different amounts of ground granulated blast furnace slag and CuO nanoparticles as binder have been investigated. Portland cement was replaced by different amounts of ground granulated blast furnace slag and the properties of concrete
Materials Research. Publicado em: 26/08/2011