Polimer lifler ve beton özelliklerine etkileri

Year 2021, Volume: 11 Issue: 2, 438 - 451, 15.04.2021

Cüneyt Doğan İsmail Demir

https://doi.org/10.17714/gumusfenbil.819838

Cited By: 1

Abstract

Beton, günümüz inşaat endüstrisi için vazgeçilmez bir elemandır ve dünya çapında en çok kullanılan yapı malzemesidir. Dayanım ve kolay erişilebilirlik, betonun önemli özellikleridir. Yüksek basınç dayanımının aksine, düşük çekme dayanımı, kırılgan yapısı ve çatlak oluşumu, güvenli binalar inşa etmek için çözülmesi gereken sorunlardır. Günümüzde betonda olası çatlakları önlemek için polimer lif kullanımı birçok araştırmacının odak noktasıdır. Bu derleme makale, polipropilen (PP) polietilen (PE) polietilen tereftalat (PET), poliamid (PA), polivinil alkol (PVA) ve poliakrilonitril (PAN) lif özelliklerinin yanı sıra bu polimer liflerin betonda kullanımını araştıran deneysel çalışmaların kapsamlı bir literatür taramasını sunmaktadır. Bu çalışmadaki amacımız, büzülme ve çatlak oluşumu, basınç, çekme ve eğilme dayanımı, tokluk ve elastisite modülü gibi beton parametrelerini belirlemek için fiber takviyeli beton ile ilgili önceki çalışmaları tüm yönleriyle karşılaştırmaktır. Sonuç olarak, polimer liflerin betonda çatlak oluşumunu azalttığı ve dayanıklılığı, çekme dayanımı gibi mekanik özellikleri ve yarmada çekme dayanımını arttırdığı gösterilmiştir.

Keywords

Lif takviyeli beton, Poliakrilonitril lif, Polietilen tereftalat lif, Polipropilen lif, Polivinil alkol lif

Polymer fibers and effects on the properties of concrete

Abstract

Concrete is an indispensable material for today's construction industry and it is the most used building material globally. Strength and easy accessibility are important properties of concrete. Contrary to its high compressive strength, low tensile strength, brittle structure, and crack formation are problems that must be solved in order to build safe buildings. Today, using polymer fibers to prevent possible cracks on the concrete is the focus of many researchers. In the review article was presented a comprehensive literature review of polymer fibers include polypropylene (PP) polyethylene (PE) polyethylene terephthalate (PET), polyamide (PA), polyvinyl alcohol (PVA), and polyacrylonitrile (PAN) fiber properties, as well as the use of these polymer fibers in concrete. Our purposes in this study were to review, all aspects previous studies of fiber reinforced concrete were compared to determine concrete parameters such as shrinkage and crack formation, compression, splitting tensile and flexural strength, toughness, and modulus of elasticity. As a result, it has shown that the polymer fibers decrease the formation of cracks in concrete and increase durability, mechanical properties such as flexural strength and splitting tensile strength.

Keywords

Fiber reinforced concrete, Polyacrylonitrile fibers, Polyethylene terephthalate fibers, Polypropylene fibers, Polyvinyl alcohol fibers

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