Influence of steel fibres on strength and ductility of normal and lightweight high strength concrete

Balendran, R.V.; Zhou, Fenglin; Nadeem, Abid; Leung, A.Y.T.

doi:10.1016/s0360-1323(01)00109-3

Cited by 249 publications

(109 citation statements)

References 6 publications

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“…This indicates that even by just incorporating 0.25% volume fraction of fiber into lightweight concrete, splitting tensile strength of WFRC increases, significantly. This is in accordance with the results of Shafigh and Balendran 1,17 . The addition of 0.5% waste steel wire did not significantly change the splitting tensile strength of the lightweight concrete.…”

Section: Impact Testsupporting

confidence: 81%

“…Furthermore, concrete is a brittle material with low shear capacity and bending strength 3,[13][14][15] . These characteristics are more obvious in lightweight concrete than conventional concrete for the same compressive strength 16,17 due to existence of lightweight aggregates which are relatively weaker than the cement matrix while they also have low resistance against crack propagation 18 . Therefore, it is found out that addition of steel fiber in concrete mixture can decrease the mentioned brittleness 19,20 .…”

Section: Introductionmentioning

confidence: 99%

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Waste steel wires modified structural lightweight concrete

Aghaee

Yazdi

2014

Mat. Res.

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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). The objective was to investigate the possibility of using this type of fiber as reinforcement in the SLWC. Compressive, tensile, flexural and impact tests were performed for investigating the mechanical properties of 28-day reinforced lightweight concrete specimens with the waste wires. The percentage of wire in the fiber reinforced concrete (FRC) was 0.25%, 0.5% and 0.75% in the volume fraction of the concrete. According to the results, by using waste wires, flexural, tensile and impact characteristics of SLWC were effectively improved. Moreover, it was concluded that waste steel wires could be used as a suitable micro reinforcement in the SLWC.

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Section: Impact Testsupporting

confidence: 81%

Section: Introductionmentioning

confidence: 99%

Waste steel wires modified structural lightweight concrete

Aghaee

Yazdi

2014

Mat. Res.

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“…Fly ash has the potential to enhance properties by reducing heat of hydration and giving the material good thermal insulation [4], while silica fume is usually added to improve cement paste/aggregate bonds [11]. However, in a study of the effect of mineral admixtures in lightweight concrete with high strength and workability, Reference [8] investigated both rheological (improving the workability) and strength (deceasing the early-age strength) properties, and recommended that fly ash (FA) should not be added to lightweight concrete on its own.…”

Section: Introductionmentioning

confidence: 99%

The Use of Additives to Enhance Properties of Pre- Formed Foamed Concrete

Hilal¹,

Thom²,

Dawson³

2015

IJET

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“…Meanwhile past studies on fibre-reinforced concrete reported significant enhancement of the mechanical properties, cracking resistance and durability compared to the conventional concrete (3,7,8,(13)(14)(15)(16)(17)(18)(19). The other reported advantages of steel fibres in concrete include improving toughness (19), ductility (20), flexural behaviours (21) and impact and blast resistance (5).…”

Section: Research Backgroundmentioning

confidence: 99%

“…The incorporation of steel fibres in concrete is known to increase the toughness and ductility of concrete substantially, especially under tensile loading (5,7,8). In this study, hooked end steel fibres with up to 3% (by volume) were added into OPSC in order to improve the low tensile strength of OPSC.…”

Section: Introductionmentioning

confidence: 99%

High strength oil palm shell concrete beams reinforced with steel fibres

Yap

Alengaram

et al. 2017

Mater. construcc.

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ABSTRACT:The utilization of lightweight oil palm shell to produce high strength lightweight sustainable material has led many researchers towards its commercialization as structural concrete. However, the low tensile strength of Oil Palm Shell Concrete (OPSC) has hindered its development. This study aims to enhance the mechanical properties and flexural behaviours of OPSC by the addition of steel fibres of up to 3% by volume, to produce oil palm shell fibre-reinforced concrete (OPSFRC). The experimental results showed that the steel fibres significantly enhanced the mechanical properties of OPSFRC. The highest compressive strength, splitting tensile and flexural strengths of 55, 11.0 and 18.5 MPa, respectively, were achieved in the OPSFRC mix reinforced with 3% steel fibres. In addition, the flexural beam testing on OPSFRC beams with 3% steel fibres showed that the steel fibre reinforcement up to 3% produced notable increments in the moment capacity and crack resistance of OPSFRC beams, but accompanied by reduction in the ductility. RESUMEN: Vigas de hormigón de alta resistencia con palma de aceite reforzados con fibras de acero. La utilización de cáscara ligera de palma de aceite para producir materiales duraderos y de alta resistencia ha llevado a muchos investigadores a su comercialización como hormigón estructural. Sin embargo, la baja resistencia a la tracción del hormigón de cáscara de palma de aceite (OPSC) ha obstaculizado su desarrollo. Este estudio tiene como objetivo mejorar las propiedades mecánicas y los comportamientos de flexión de OPSC mediante la adición de fibras de acero de hasta un 3% en volumen, para producir hormigón armado de fibra de palma de aceite (OPSFRC). Los resultados experimentales mostraron que las fibras de acero mejoraron significativamente las propiedades mecánicas de OPSFRC. En la mezcla OPSFRC reforzada con fibras de acero al 3% se obtuvieron las mayores resistencias a la compresión, resistencia a la tracción ya la flexión de 55, 11,0 y 18,5 MPa, respectivamente. Además, el ensayo de vigas flexibles en haces OPSFRC con fibras de acero al 3% mostró que el refuerzo de fibra de acero hasta 3% produjo incrementos notables en la capacidad momentánea y resistencia a la fisuración de los haces OPSFRC, pero acompañado de una reducción de la ductilidad.PALABRAS CLAVE: Árido; Hormigón; Refuerzo de fibras; Resistencia a la flexión; Propiedades mecánicas ORCID ID: S. Poh-Yap

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Influence of steel fibres on strength and ductility of normal and lightweight high strength concrete

Cited by 249 publications

References 6 publications

Waste steel wires modified structural lightweight concrete

Waste steel wires modified structural lightweight concrete

The Use of Additives to Enhance Properties of Pre- Formed Foamed Concrete

High strength oil palm shell concrete beams reinforced with steel fibres

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