Experimental investigation on uniaxial tensile strength of hybrid fibre concrete

Akcay, Burcu

doi:10.1016/j.compositesb.2011.08.017

Cited by 19 publications

(19 citation statements)

References 15 publications

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“…Therefore, blending two or more types of fibers (“hybrid fiber”) has been investigated in an attempt to improve the concrete properties 5, 6. Hybrid fiber systems aim to provide a composite with superior properties by capitalizing on the merits of each fiber type 7–9. Hybrid fiber‐reinforced concrete (HFRC) uses fibers having different physical and mechanical properties to suppress cracking and improve the mechanical performance and durability 10, 11.…”

Section: Introductionmentioning

confidence: 99%

“…5,6 Hybrid fiber systems aim to provide a composite with superior properties by capitalizing on the merits of each fiber type. [7][8][9] Hybrid fiber-reinforced concrete (HFRC) uses fibers having different physical and mechanical properties to suppress cracking and improve the mechanical performance and durability. 10,11 If the volume fraction of the fibers is too high, however, fiber balling may take place, causing poor fluidity, making compaction difficult, and degrading the dispersibility of the fibers.…”

Section: Introductionmentioning

confidence: 99%

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Strength, permeability, and durability of hybrid fiber‐reinforced concrete containing styrene butadiene latex

Kim

Park

2012

J of Applied Polymer Sci

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Hybrid fiber‐reinforced concrete (HFRC) is examined in this study. Two types of synthetic fibers were considered: polyvinyl alcohol fiber/macro synthetic fiber (PVA/MSF) and polypropylene fiber (PP)/MSF. Styrene butadiene latex was added at 0%, 5%, 10%, and 15% of the cement weight. Tests carried out for the study included compressive strength, flexural strength, chloride ion penetration, abrasion resistance, and impact resistance. The results demonstrated that higher latex contents improved the dispersibility of the fibers because of the increased workability of the HFRC and the improved adhesion. Formation of a latex film improved the strength, permeability resistance, abrasion resistance, and impact resistance. PVA/MSF HFRC had better properties than PP/MSF HFRC. This was attributed to stronger hydrogen bonding by the hydrophilic PVA fibers, which led to superior resistance to micro‐cracking and crack propagation. © 2012 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2013

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Strength, permeability, and durability of hybrid fiber‐reinforced concrete containing styrene butadiene latex

Kim

Park

2012

J of Applied Polymer Sci

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“…Kırılma enerjisinin yanında, tepe yükü de sınır değer şartlarından etkilenir. Dönen sınır şartlarında göçme numunenin en zayıf noktasında sınır değer şartlarından bağımsız olarak oluşur [19,20] [23].…”

Section: Introductionunclassified

Karma Lifli Betonların Tek Eksenli Çekme Altında Çatlak Yapısının İncelenmesi

Aldanmaz

2020

Teknik Dergi

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Karma lifli betonların kırılmasında lif hacmi ve lif boyutunun etkisi tek eksenli çekme deneyi ile belirlenmiştir. Kemik şeklindeki numuneler serbest dönen mafsallı yükleme düzeneğinde tek eksenli çekme altında yüklenmiştir. Deney sonuçları lif hacmi arttıkça hem çekme dayanımının hem de betonun tokluğunun (yük-deplasman grafiğinin altında kalan alanın) arttığını göstermiştir. Kısa liflerin yalnızca tepe yükünü arttırmadığı uzun lifler ile birlikte karma olarak kullanıldığında tepe yükünden sonraki davranışa da etkiyerek tokluğu da arttırdığı görülmüştür. Görüntü analizleri karma lifli betonlarda çatlağın hiçbir zaman doğrusal olmadığını, betonun iç kısımlarına ilerledikçe dış yüzeyde görünmeyen çoklu çatlamanın, dallanma ve köprülenmenin bulunduğunu göstermiştir. Kısa lifler arttıkça ortalama çatlak alanı belirgin bir şekilde artarken uzun liflerin miktarı arttıkça en büyük çatlak açıklığının arttığı belirlenmiştir.

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“…Furthermore, the failure modes of shear studs have been observed, and the load transfer through shear studs has been studied through static and fatigue tests . The relative displacement and initial tangential stiffness have been compared and analyzed based on the results of the statistical analysis of the load–displacement curves obtained from static tests …”

Section: Introductionmentioning

confidence: 99%

“…[7][8][9][10][11] The relative displacement and initial tangential stiffness have been compared and analyzed based on the results of the statistical analysis of the load-displacement curves obtained from static tests. [12][13][14][15][16] Discussion on this paper must be submitted within two months of the print publication. The discussion will then be published in print, along with the authors' closure, if any, approximately nine months after the print publication.…”

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confidence: 99%

Verification of structural performance of connections between reinforced concrete shear walls and outriggers in high‐rise buildings

Shim

Kim

Park

2019

Structural Concrete

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The outrigger and belt truss system is the most commonly used lateral load‐resisting system for high‐rise buildings in which the external mega columns and core walls are connected via outriggers and belt trusses. The shear studs, which are used for the connections between the outriggers and the core walls, are subjected to pull‐out loading because of the lateral load. Although various types of shear studs have been developed based on analytical and experimental studies, most previous studies on the behavior and strength of shear studs have been based on push‐out tests. It is necessary to verify the structural performance of shear studs subjected to pull‐out loading before their field installation at the connections in the structural system of high‐rise buildings. In this study, experiments were conducted on full‐scale pull‐out test specimens made of materials having the same strength as those used in an actual high‐rise building structure. The experimental results show that the shear strength of the connection can be improved by approximately 7.9% using double‐headed studs instead of normal‐strength studs.

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Experimental investigation on uniaxial tensile strength of hybrid fibre concrete

Cited by 19 publications

References 15 publications

Strength, permeability, and durability of hybrid fiber‐reinforced concrete containing styrene butadiene latex

Strength, permeability, and durability of hybrid fiber‐reinforced concrete containing styrene butadiene latex

Karma Lifli Betonların Tek Eksenli Çekme Altında Çatlak Yapısının İncelenmesi

Verification of structural performance of connections between reinforced concrete shear walls and outriggers in high‐rise buildings

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