Crack growth resistance of hybrid fiber reinforced cement composites

Banthia, Nemkumar; Nandakumar, N.

doi:10.1016/s0958-9465(01)00043-9

Cited by 272 publications

(105 citation statements)

References 2 publications

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“…Kompozitlerin ortalama basınç dayanımları Şekil 1'de verilmiştir. Ancak lif içermeyen kompozit gevrek bir şekilde kırılırken farklı boylarda polipropilen lif içeren diğer numunelerin kontrollü bir şekilde ve uzun sürede sünek bir şekilde kırıldığı ise polipropilen liflerin uzama yüzdelerinin yüksek olması ile açıklanabilir [4,15,16].…”

Section: Basınç Mukavemeti (Compressive Strength)unclassified

“…Numuneler ilerleyen yaşlarda belirgin bir boy değişimi göstermediğinden lifler rötre sebebiyle oluşacak olan çatlakları engelleyebilir ve bu nedenle tamir ve yapıştırma işlemlerinde başarılı sonuç alınabilir. Özellikle sıcak ve rutubetli havalarda oluşan bu tip çatlakların oluşumunun engellenmesiyle geniş yüzeylerde polipropilen lif kullanılabilir [5,[14][15][16].…”

Section: Büzülme (Shrinkage)unclassified

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Yüksek Yoğunluklu Polipropilen Tekstil Atıklarının Kompozit Malzeme Üretiminde Kullanılabilirliği

Murathan¹,

Karadavut²

2014

Gazi Üniversitesi Mühendislik-Mimarlık Fakültesi Dergisi

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ÖZETBu çalışmada, yüksek yoğunluklu polipropilen tekstil atıklarının kompozit malzeme üretiminde kullanılabilirliği araştırılmıştır. Kompozitlerde ana malzeme PÇ 42,5 beyaz Portland çimentosu, kireç, elenmiş dere kumu ve vinil akrilik bağlayıcıdır. Çalışmada polipropilen ve bağlayıcının kullanılmadığı kompozit kontrol numunesi olarak seçilmiş, diğer kompozitlerde ise farklı genişliğe sahip polipropilen kullanılmıştır. 1, 3, 7, 14 ve 28 günlük kürleme süreleri sonunda kompozitlerde polipropilen kullanımıyla kontrol numunesine göre daha düşük basınç dayanımı, daha yüksek su emme ve bu sonuçlara paralel olarak kompozitlerin büzülme yapmadığı elde edilirken mikroçatlakların önlendiği, yapıda tamir edici özelik sağlandığı, özellikle, bu uygulamanın ticari tamir ve yapıştırma uygulamalarında faydalı olabileceği değerlendirilmiştir.Anahtar kelimeler: Polipropilen tekstil atığı, Vinil akrilik bağlayıcı, Çimento, Kompozit, Basınç dayanımı, Büzülme USEABILITY OF HIGH DENSITY POLYPROPYLENE TEXTILE WASTE IN COMPOSITE MATERIAL PRODUCTION ABSTRACTIn this study, the useability of high density polypropylene textile waste in composites was investigated. Main materials are PÇ 42,5 white Portland cement, lime, sieved natural sand and vinyl acrylic binder in the composites. In the experiments, a composite material was selected as the control specimen in which any polypropylene and binder were used, also polypropylenes which have different width were used in the other composites. At the end of the 1, 3, 7,14 and 28 days curing times; by using these polypropylenes, the composites indicated the lower compressive strengths meanwhile the higher water absorption and also no shrinkage according to the control specimen, the repairing properties such as prevention of microcrackings were obtained especially, it was concluded that this application can be useful in commercial repairing and plaster applications.

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Section: Basınç Mukavemeti (Compressive Strength)unclassified

Section: Büzülme (Shrinkage)unclassified

Yüksek Yoğunluklu Polipropilen Tekstil Atıklarının Kompozit Malzeme Üretiminde Kullanılabilirliği

Murathan¹,

Karadavut²

2014

Gazi Üniversitesi Mühendislik-Mimarlık Fakültesi Dergisi

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“…It becomes more popular in these recent years and expected to provide better physical and mechanical properties in concrete for structural purposes. The use of different types of fiber in a suitable combination may potentially improve the mechanical properties of concrete and result in synergic performance [6][7][8][9]. Addition of steel fiber generally provides contribution to the energy absorbing mechanism (bridging action), while nonmetallic fibers offer its ability to delay the formation of microcracks and avoid catastrophic breaking, and also has much lower density [9].…”

Section: Background Lightweight Concrete (Lwc) Applicationmentioning

confidence: 99%

Effects of Hybrid Polypropylene-Steel Fiber Addition on Some Hardened Properties of Lightweight Concrete with Pumice Breccia Aggregate

Widodo

Satyarno

Tudjono

2012

ISRN Civil Engineering

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Lightweight concrete application in construction field is growing rapidly in these recent years due to its advantages over ordinary concrete. In this paper, pumice breccia which can be found abundantly in Indonesia is proposed to be utilized as the coarse aggregate. In spite of its benefits, lightweight concrete exhibits more brittle characteristics and lower tensile strength compared with normal concrete. On the other hand, fiber addition into concrete has become widely used to improve its tensile properties. Furthermore, the utilization of hybrid fiber in a suitable combination may potentially improve the mechanical properties of concrete. This paper experimentally examines the effects of hybrid polypropylene-steel fiber addition on some hardened properties of pumice breccia aggregate lightweight concrete. Five groups of test specimens with fixed volume fraction of polypropylene fiber combined with different amounts of steel fiber were added in concrete to investigate the density, compressive strength, modulus of elasticity, splitting tensile strength, and the modulus of rupture of the concrete mixtures. Test results indicate that hybrid fiber addition leads to significant improvement to the compressive strength, modulus of elasticity, splitting tensile strength, and the modulus of rupture of the pumice breccia lightweight aggregate concrete and meet the specification for structural purposes.

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“…Central composite design has been used as a design of experiment. It is known that hybrid fiber reinforced cement composites exhibit higher flexural strength [4][5] and it is expected that hybrid fibered specimens exhibit better mechanical properties which may not be observed in single fibered reinforced cement composites. [6] Therefore, 3 hybrid fibered specimens such as (12 mm glass fiber with polypropylene fiber), (12 mm glass fiber with nylon fiber) and (12 mm glass fiber with 3 mm glass fiber) have been produced to compare single fibered (12 mm glass fiber) specimens.…”

Section: Introductionmentioning

confidence: 99%

Investigation of the Effect of Polymeric Cement Modifier and Fibers on Properties of Fiber Reinforced Polymer Cement Composites by Surface Response Method

2017

May 17-18, 2017 Istanbul (Turkey)

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Crack growth resistance of hybrid fiber reinforced cement composites

Cited by 272 publications

References 2 publications

Yüksek Yoğunluklu Polipropilen Tekstil Atıklarının Kompozit Malzeme Üretiminde Kullanılabilirliği

Yüksek Yoğunluklu Polipropilen Tekstil Atıklarının Kompozit Malzeme Üretiminde Kullanılabilirliği

Effects of Hybrid Polypropylene-Steel Fiber Addition on Some Hardened Properties of Lightweight Concrete with Pumice Breccia Aggregate

Investigation of the Effect of Polymeric Cement Modifier and Fibers on Properties of Fiber Reinforced Polymer Cement Composites by Surface Response Method

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