Special Concrete
Mostrando 1-12 de 60 artigos, teses e dissertações.
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1. Interfacial bond-slip relationship between Carbon Fiber Reinforced Polymer Plate and Concrete after High Temperature of Asphalt Paving Construction
Abstract The bond-slip relationship of Carbon Fiber Reinforced Polymer (CFRP) plate-concrete after the influence of high temperature action of Stone Mastic Asphalt (SMA) paving was investigated in this article. Two groups of double shear specimens with different bonding length were designed and tested. Based on the test results, the failure modes of specimen
Lat. Am. j. solids struct.. Publicado em: 25/11/2019
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2. Numerical approach of the steel-concrete bond behavior using pull-out models
ABSTRACT This paper deals with the analysis of monotonic loading behavior in pull-out tests. The main objective is to obtain a reliable numerical model to represent the steel-concrete bond behavior using previously obtained experimental results. The tests were performed in RILEM pull-out specimen using 10 mm steel bar and concrete with compressive strength o
Matéria (Rio J.). Publicado em: 10/06/2019
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3. Avaliação do grau de orientação de fibras de aço induzida na moldagem de elementos planos com concreto autoadensável
RESUMO O uso de concreto autoadensável (CAA) aliado ao concreto reforçado com fibras (CRF) tem sido objeto de várias pesquisas recentes. A combinação da fluidez do CAA com o uso de fibras aumenta a probabilidade de que, no processo de lançamento, seja possível causar orientação preferencial nas fibras, inclusive em elementos planos. Isto pode ser be
Matéria (Rio J.). Publicado em: 10/06/2019
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4. The use of tire rubber in the production of high-performance concrete
Abstract The advances in concrete technology lead to the search for alternative materials that provide improvements in concrete properties while at the same time collaborating with sustainable practices in construction. In this study, the influence of the incorporation of waste tire rubber on the mechanical properties of high-performance concrete was discuss
Cerâmica. Publicado em: 2019-01
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5. Tensile Behaviour and Durability Issues of Engineered Cementitious Composites with Rice Husk Ash
ABSTRACT The Engineered Cementitious Composites (ECC) is a special type of High Performance Fibre Reinforced Cementitious Composite (HPFRCC) characterized by a high tensile ductility with a 2% maximum volume of micro fibres. ECC has a tensile strain-hardening performance that leads to multiple cracking behaviour, thus providing the high ductility to the conc
Matéria (Rio J.). Publicado em: 20/07/2017
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6. Thermal resistance and conductivity of recycled construction and demolition waste (RCDW) concrete blocks
Abstract In Brazil, studies to reuse construction and demolition waste are a special issue because a large amount of this material has been delivered to the public landfills and in illegal places. Some researchers have suggested reusing this material in building elements, such as bricks or blocks. It is possible to find a lot of researches in physical/mechan
REM, Int. Eng. J.. Publicado em: 2017-06
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7. Mechanical Behavior of Concrete Modified by Replacement of Cement by Rice Husk Ash
ABSTRACT Construction industry is in need of lump sum quantities of materials which has increased both their demand and price. The use of large quantities of cement leads to increasing CO2 emission and as a consequence, the greenhouse effect. Consumption of wastes and byproducts from various sources in the manufacture of concrete has gained a great deal of i
Braz. arch. biol. technol.. Publicado em: 23/01/2017
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8. Experimental Investigation on Self-Compacting Self-Curing Concrete Incorporated with the Light Weight Aggregates
ABSTRACT Self-Compacting Concrete (SCC) flows around obstructions by its self-weight to fill entirely and self-consolidate (without any need for vibration), without any part of disconnection and chunking. The eradication of the need for consolidation leads to better quality concrete and substantial improvement of running conditions. The fresh state of SCC mi
Braz. arch. biol. technol.. Publicado em: 23/01/2017
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9. 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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10. Assessment of Redundancy Factors for the Seismic Design of Special Moment Resisting Reinforced Concrete Frames
Abstract A parametric study devoted to assess the impact of increasing the structural redundancy in ductile reinforced concrete (RC) moment framed buildings is presented. Among the studied variables were the number of stories and the number of bays. Studied models were 4, 8, 12 and 16-story frames with a story height h=3.5 m (11.5 ft). Nonlinear static analy
Lat. Am. j. solids struct.. Publicado em: 2015-12
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11. Numerical study of concrete-filled steel composite (CFSC) stub columns with steel stiffeners
Numerical study of concrete-filled steel composite (CFSC) stub columns with steel stiffeners is presented in this paper. The behaviour of the columns is examined by the use of the finite element software LUSAS. Results from nonlinear finite element analyses are compared with those from corresponding experimental tests which uncover the reasonable accuracy of
Lat. Am. j. solids struct.. Publicado em: 2014-08
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12. Behaviour of stiffened concrete-filled steel composite (CFSC) stub columns
This paper investigates the behaviour of axially loaded stiffened concrete-filled steel composite (CFSC) stub columns using the finite element software LUSAS. Modelling accuracy is established by comparing results of the nonlinear analysis and the experimental test. The CFSC stub columns are extensively developed using different special arrangements, number,
Lat. Am. j. solids struct.. Publicado em: 2013-03