Deflection behavior of concrete beams reinforced with PVA micro-fibers

Hamoush, Sameer; Abu-Lebdeh, Taher; Cummins, Toney

doi:10.1016/j.conbuildmat.2010.04.027

Cited by 98 publications

(63 citation statements)

References 11 publications

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“…However, the increments of the splitting tensile and flexural strengths of NWFRC were only 2-6% and 15-30%, respectively. In fibre-reinforced concrete, the enhancement effect of steel fibre could be explained by the crack bridging effect [15,[36][37][38][39][40]. Previous discussion mentioned that OPSC is weaker under tension, which is attributed to the weak aggregate-cement paste bond.…”

Section: Mechanical Propertiesmentioning

confidence: 92%

“…Firstly, the cracking torque, ultimate torque and Part 1 torsional toughness of the NWFRC specimens increased by 27-36%, 27-38%, and 110-170%, respectively. The enhancement effect of steel fibre could be explained by the fibre-matrix interfacial bond [37,42]. Additional torsion forces could be sustained as part of the torsion force applied is required to overcome the bond.…”

Section: Comparison Between Nwc and Nwfrcmentioning

confidence: 98%

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Effect of fibre aspect ratio on the torsional behaviour of steel fibre-reinforced normal weight concrete and lightweight concrete

Yap¹,

Khaw²,

Alengaram³

et al. 2015

Engineering Structures

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Section: Mechanical Propertiesmentioning

confidence: 92%

Section: Comparison Between Nwc and Nwfrcmentioning

confidence: 98%

Effect of fibre aspect ratio on the torsional behaviour of steel fibre-reinforced normal weight concrete and lightweight concrete

Yap¹,

Khaw²,

Alengaram³

et al. 2015

Engineering Structures

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“…Incorporation of fibres is an effective way to improve the mechanical properties of concrete, such as splitting tensile and flexural strengths and other related characteristics [11]. In fibre-reinforced concrete, the role of fibres is to improve the performance of concrete through the crack bridge effect of fibres and the fibre-cement-aggregate interfacial bond [5].…”

Section: Introductionmentioning

confidence: 99%

Improvement of Mechanical Properties in Polypropylene‐ and Glass‐Fibre‐Reinforced Peach Shell Lightweight Concrete

Liu

Diao

et al. 2018

Advances in Materials Science and Engineering

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e use of the polypropylene fibre and glass fibre with different volume fractions to improve the mechanical properties of peach shell lightweight concrete was investigated in this study. e volume fractions of 0.25%, 0.50%, and 0.75% were used for each fibre.e results showed that, as the polypropylene fibre and glass fibre were added into peach shell concrete, the density was reduced by up to 6.1% and the compressive strength, splitting tensile strength, and flexural strength were increased by 19.1%, 54.3%, and 38.6%, respectively. e highest compressive strength, splitting tensile strength, and flexural strength of 29.3 MPa, 2.87 MPa, and 3.09 MPa, respectively, were produced by peach shell concrete with 0.75% glass fibre. e results indicated that the incorporation of fibres significantly enhanced the postfailure toughness of peach shell concrete. It was found that the glass fibre was more effective than the polypropylene fibre in improving the mechanical properties of peach shell concrete. Although the incorporation of fibres slightly increased the water absorption and porosity, the type and content of fibres had no significant effect on water absorption and porosity. erefore, the mechanical properties of peach shell lightweight concrete can be improved by adding polypropylene fibres and glass fibres.

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“…The values selected for the parameters held constant were chosen in an attempt to minimize the concrete shear strength. Hamoush et al (2010) presented several results of experimental investigation on six reinforced concrete beams in which their structural behavior in shear was studied. The research conducted was about the use of additional horizontal and independent bent-up bars to increase the beam resistance against shear forces.…”

Section: Ajeasmentioning

confidence: 99%

The Use of Swimmer Bars as Shear Reinforcement in Reinforced Concrete Beam

Al-Nasra

Asha

Najmi

et al. 2013

American Journal of Engineering and Applied Sciences

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The behavior of reinforced concrete beams at failure by shear is distinctly different from their behavior by bending, which is considered to be unsafe mode of failure. The shear failure of beams is usually sudden without sufficient advanced warning and the diagonal cracks that develop due to excess shear forces are considerably wider than the flexural cracks. The cost and safety of shear reinforcement in reinforced concrete beams led to the study of other alternatives. Swimmer bar system is a new type of shear reinforcement. It is a small inclined bars, with its both ends bent horizontally for a short distance and welded to both top and bottom flexural steel reinforcement. Regardless of the number of swimmer bars used in each inclined plane, the swimmer bars form plane-crack interceptor system instead of bar-crack interceptor system when stirrups are used. Test results of several reinforced concrete beams will be presented. The effectiveness of the new swimmer bar system as related to the old stirrup system will be discussed. Beam deflection is also targeted experimentally in the lab. Several deflection measurements were taken to study the effect of using new swimmer bar system on deflection. Also the crack width of the tested reinforced concrete beams was monitored.

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Deflection behavior of concrete beams reinforced with PVA micro-fibers

Cited by 98 publications

References 11 publications

Effect of fibre aspect ratio on the torsional behaviour of steel fibre-reinforced normal weight concrete and lightweight concrete

Effect of fibre aspect ratio on the torsional behaviour of steel fibre-reinforced normal weight concrete and lightweight concrete

Improvement of Mechanical Properties in Polypropylene‐ and Glass‐Fibre‐Reinforced Peach Shell Lightweight Concrete

The Use of Swimmer Bars as Shear Reinforcement in Reinforced Concrete Beam

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