Effects of Fibre Geometry and Volume Fraction on the Flexural Behaviour of Steel‐Fibre Reinforced Concrete

Soulioti, D. V.; Barkoula, N.-M.; Paipetis, Alkiviadis S.; Matikas, Theodore E.

doi:10.1111/j.1475-1305.2009.00652.x

Cited by 152 publications

(84 citation statements)

References 16 publications

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“…In fact, the tests on samples with a fibre content of 40 kg/m 3 reveal even lower energy dissipation than the ones with 30 kg/m 3 . This is in contradiction to the generally known information that energy dissipation at cracked state increases with a growing fibre content in the matrix, [2][3][4][5][6][7][8][9][10]. Similarly, a higher fibre content (40 kg/m 3 ) for both random and deliberate orientations generates lower fracture energies compared to a lower fibre content (30 kg/m 3 ).…”

Section: Discussioncontrasting

confidence: 52%

“…The parameters with the strongest influence on the improved tensile capacity compared to plain cement or concrete are the fibre mass or volume content (usually expressed in [kg/m 3 ] or [%], respectively), fibre aspect ratio (length-to-diameter-ratio), bond efficiency of the embedded fibre(s), and the fibre orientation with respect to the direction of the applied stress. A higher fibre content and higher aspect ratio generally lead to a higher post cracking strength [2][3][4][5][6][7][8][9][10][11]. On the other hand, the bond characteristics of the embedded fibres are determined by the fibre geometry and surface adhesion [12,13].…”

Section: Introductionmentioning

confidence: 99%

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Preliminarno istraživanje utjecaja orijentacije vlakana u mikroarmiranim mortovima

Lakušić¹

2016

JCE

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Preliminary study on the influence of fibre orientation in fibre reinforced mortarsThe influence of steel fibres in fibre reinforced mortars is considered in the paper. Fresh mortar samples with randomly distributed fibres are placed in a spiral coil and exposed to electromagnetic filed so as to achieve orientation of fibres. The location and orientation of fibres is defined by x-ray images. The bending strength testing with deflection checking using the ICS system (Digital Image Correlation System) is conducted. Considering the fibre orientation and load applied, the results exhibit better energy dissipation and greater energy at fracture in case of samples with oriented fibres. Preliminarno istraživanje utjecaja orijentacije vlakana u mikroarmiranim mortovima U radu se obrađuje utjecaj čeličnih vlakana u mikroarmiranim mortovima. Uzorci morta u svježem stanju, s nasumično raspoređenim vlaknima su smješteni u spiralnu zavojnicu i izloženi elektromagnetskom polju u cilju postizanja usmjerenosti vlakana. Lokacija i orijentacija vlakana je određena rengenskom snimkom. Provedena su ispitivanja čvrstoće na savijanje uz kontrolu progiba ISC sustavom (engl. Digital Image Correlation System -ICS). S obzirom na orijentaciju vlakana, rezultati su pokazali poboljšanu disipaciju energije i veću energiju pri lomu kod uzoraka s usmjerenim vlaknima.

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Section: Discussioncontrasting

confidence: 52%

Section: Introductionmentioning

confidence: 99%

Preliminarno istraživanje utjecaja orijentacije vlakana u mikroarmiranim mortovima

Lakušić¹

2016

JCE

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“…Compressive tests showed that the fibers in concrete had only a marginal effect on the compressive strength of concrete (Olivito and Zuccarello 2010;Soulioti et al 2011). However, studies on compression behavior of synthetic fiber reinforced concrete is very limited.…”

Section: Behavior Of Frc Under Compression and Flexurementioning

confidence: 99%

A Study on Residual Compression Behavior of Structural Fiber Reinforced Concrete Exposed to Moderate Temperature Using Digital Image Correlation

Srikar

Anand

Prakash

2016

Int J Concr Struct Mater

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Fire ranks high among the potential risks faced by most buildings and structures. A full understanding of temperature effects on fiber reinforced concrete is still lacking. This investigation focuses on the study of the residual compressive strength, stress strain behavior and surface cracking of structural polypropylene fiber-reinforced concrete subjected to temperatures up to 300°C. A total of 48 cubes was cast with different fiber dosages and tested under compression after exposing to different temperatures. Concrete cubes with varying macro (structural) fiber dosages were exposed to different temperatures and tested to observe the stress-strain behavior. Digital image correlation, an advanced non-contacting method was used for measuring the strain. Trends in the relative residual strengths with respect to different fiber dosages indicate an improvement up to 15 % in the ultimate compressive strengths at all exposure temperatures. The stress-strain curves show an improvement in post peak behavior with increasing fiber dosage at all exposure temperatures considered in this study.

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“…Furthermore, the increase of the flexural strength of SFRC is significantly improved with increasing the fiber aspect ratio (i.e. fiber length/fiber diameter ratio) and fiber volume fraction [10].…”

Section: Literature Reviewmentioning

confidence: 89%

The Effect of Waste Tyre Steel Fibers distribution Characteristics on the Flexural Strength of Concrete with Improving Environmental Impact in Pakistan

Wagan¹

2017

AJASR

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Abstract:The use of vehicles in Pakistan is increasing day-by-day because of which disposal of solid waste to the landfills of used tyres is a serious issue to be solved for Pakistan EPA. Currently this industry is facing many challenges due to lack of support from government for the recycling and reuse of waste tyre by products but manually a large quantity of high strength steel fibers are being extracted from waste tyres, the dominant use of this tyre-derived fiber is a scrap steel to manufacture new iron or steel. This research study is focusing on the use of steel fibers extracted from waste tyres in concrete with different proportions to produce a concrete more strong than ordinary concrete (specially as a member like Beam) economical and cost effective. Different concrete specimens were fabricated and tested in uniaxial compression testing machine to find compression and splitting Beams for the Flexural Strength. The steel fibers were substituted into the concrete by dry weight of mix with 0%, 0.5%, 1%, 1.5%, 2% and 2.5%. Result shows that the flexural strength of concrete with 2.5% fibers improved up to 74%.

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Effects of Fibre Geometry and Volume Fraction on the Flexural Behaviour of Steel‐Fibre Reinforced Concrete

Cited by 152 publications

References 16 publications

Preliminarno istraživanje utjecaja orijentacije vlakana u mikroarmiranim mortovima

Preliminarno istraživanje utjecaja orijentacije vlakana u mikroarmiranim mortovima

A Study on Residual Compression Behavior of Structural Fiber Reinforced Concrete Exposed to Moderate Temperature Using Digital Image Correlation

The Effect of Waste Tyre Steel Fibers distribution Characteristics on the Flexural Strength of Concrete with Improving Environmental Impact in Pakistan

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