Strength Of Concrete
Mostrando 1-12 de 368 artigos, teses e dissertações.
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1. Technological properties of a self-bloating clay and expanded-clay aggregate for the production of lightweight concrete
Abstract The global interest in an increasingly sustainable economy, with a reduction in the consumption of raw materials and energy, can be supported by the growth in the use of lightweight concrete (LC) produced with expanded-clay aggregates (EA). The main qualities of natural self-bloating clay for the production of EA were studied, analyzing the paramete
Cerâmica. Publicado em: 2023
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2. Optimum design of steel columns filled with concrete via genetic algorithm: environmental impact and cost analysis
Abstract The use of concrete-filled tubular columns as part of structural systems has steadily increased throughout the years. The growing demand for structural elements of this nature is a direct result of the possibility to use various cross-section shapes that have increased strength, along with resistance to fire and other corrosive agents. The main obje
REM - International Engineering Journal. Publicado em: 2022
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3. Pressed roofing tile based on cementitious material and basalt powder: Technological and toxicological characterization
Abstract This study aims to develop a pressed concrete roofing tile from powder technology containing basalt powder in substitution of fine sand (aggregate) for application in building covers. Specimens were submitted to technological and toxicological characterization. Hence, pressed specimens based on cement and basalt powder were analyzed. In the bending
REM - International Engineering Journal. Publicado em: 2022
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4. Evaluation of the use of blast furnace slag as an additive in mortars
Abstract Clinker is the raw material used in the manufacture of cement. However, this material is very harmful to the environment, since it is estimated that for every ton of clinker produced, about 1.0 ton of CO2 is released into the atmosphere. For this reason, alternatives were sought for the use of other materials that are less harmful to the environment
REM - International Engineering Journal. Publicado em: 2022
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5. CONSTRUCTION AND TESTING OF GLUED LAMINATED TIMBER FRAMES FOR USE IN LAYING POULTRY HOUSES
ABSTRACT This study aimed to present a solution in glued laminated timber to replace frame structures built in reinforced concrete and metallic structure, which are common in agricultural buildings in western Paraná such as those destined to laying poultry house building by agricultural cooperatives. Structural behavior of frames build from Araucaria angust
Eng. Agríc.. Publicado em: 2020-04
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6. Composite floor system with CFS trussed beams, concrete slab and innovative shear connectors
Abstract Steel and concrete floor systems are widely applied for buildings and provide excellent structural response, optimized material consumption, reduced beam height, and improved bending strength and stiffness capacity. In recent years, many experimental investigations concerned with new alternatives addressed to efficient interaction between steel and
REM, Int. Eng. J.. Publicado em: 2020-03
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7. Post-elastic Deformation Characteristics of Hybrid Fibre Reinforced Concrete Composites
Abstract The present study was focused on evaluating the strength and failure properties of hybrid micro-fibre concretes containing micro brass and steel fibre additions. Experimental tests were conducted on different hybrid fibre concretes containing aligned fibres in the direction of beam axis and the relative mechanical performance was compared to randoml
Lat. Am. j. solids struct.. Publicado em: 10/01/2020
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8. Revised formula for predicting the long-term deflection multiplier of normal and high strength concrete
Abstract High strength concrete (HSC) has found many applications in civil engineering structures such as in high-rise buildings, and bridges. The mechanical properties of HSC are sometimes different than of normal strength concrete (NSC). In particular, HSC possess lower creep strains compared to NSC. As a result, members constructed using HSC have been fou
Rev. IBRACON Estrut. Mater.. Publicado em: 13/12/2019
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9. 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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10. Experimental investigation on shear resistance of self-consolidating concrete beams
Resumo O concreto autoadensável se destaca pela alta fluidez e estabilidade, sendo estas propriedades obtidas com a redução da granulometria e volume de agregado graúdo da mistura, adição de materiais finos e a utilização de aditivos superplastificantes e modificadores de viscosidade. Um programa experimental foi realizado para avaliar a influência
Rev. IBRACON Estrut. Mater.. Publicado em: 13/12/2019
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11. Numerical analysis of torsional tangent rigidity of reinforced concrete waffle slab
Resumo Este trabalho de investigação científica aborda a análise da rigidez tangente à torção de lajes nervuradas de concreto armado por meio de comparações da análise numérica com resultados de ensaios experimentais, cujo cálculo foi feito no programa ATENA. Tal programa foi desenvolvido especialmente para cálculo de estruturas de concreto arma
Rev. IBRACON Estrut. Mater.. Publicado em: 13/12/2019
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12. Bond strength evaluation between textiles reinforced mortar with carbon nanotubes and concrete substrate
Abstract The influence of using carbon nanotubes to improve bond strength between textiles reinforced mortar and concrete was investigated. Forty-two specimens were tested using double-shear test to evaluate the effect of various parameters such as CNTs addition, type of textile material, bond length and width, and number of TRM layers on the bond behavior.
Lat. Am. j. solids struct.. Publicado em: 25/11/2019