Epoksi Emdirilmiş Karbon Lifi Sargılı Çelik Donatıların Aderans Dayanımı

Erkan Türkmen Dönmez; Boğaçhan Başaran

doi:10.29137/umagd.897284

EN TR

Bond Strength of Epoxy Impregnated Carbon Fiber Wrapped Steel Reinforcement

Abstract

The investigation of the use of steel-FRP composite reinforcements developed against the corrosion problem of steel reinforcements and the low elasticity modulus and brittle stress-strain behavior of FRP reinforcements in concrete structural members has been very limited. More research is needed especially bond strength between reinforcement and concrete which significantly affects the ductility, energy absorption and carrying capacity of structural members. Because steel-FRP composite reinforcements are produced from two materials whose hardness and ductility are very different from each other, so the compatibility of the material within itself affects the bond behavior of these reinforcements. In this context, in this study, the bond strengths of composite reinforcements produced by wrapping epoxy impregnated carbon fiber on steel reinforcement with filament winding technique at 30 degrees and without any deformation process on the surface were investigated by pullout tests. The findings obtained were compared with the bond strength of steel reinforcements, carbon FRP reinforcements and steel-basalt, steel-carbon, steel-glass FRP reinforcements in the literature. As a result of the study has been observed carbon FRP wrapped steel composite reinforcements although there is no deformation on the surface have an average bond strength and better bond strength than reinforcements with smooth, sand-coated, strand and braided surface features.

Keywords

Carbon fibre , Carbon fibre reinforced steel bar , hybrid rebar , composite , pull-out test , FRP reinforcement bar , GFRP , bond strength

Epoksi Emdirilmiş Karbon Lifi Sargılı Çelik Donatıların Aderans Dayanımı

Öz

Çelik donatıların korozyon sorunu ile FRP donatıların düşük elastisite modülü ve gevrek gerilme-şekil değiştirme davranışlarına karşı geliştirilen çelik-FRP kompozit donatıların beton yapı elemanlarında kullanımlarının araştırılması çok sınırlı kalmıştır. Özellikle de yapı elemanlarının sünekliğini, enerji sönümleme ve taşıma kapasitesini önemli oranda etkileyen donatı-beton aderansı konusunda daha fazla araştırma yapılması gereklidir. Çünkü çelik-FRP kompozit donatılar, sertliği ve sünekliği birbirlerinden çok farklı iki malzemeden üretildiği için malzemenin kendi içindeki uyumu bu donatıların aderans davranışlarını etkilemektedir. Bu kapsamda, bu çalışmada, epoksi emdirilmiş karbon lifinin çelik donatı üzerine filaman sarım tekniğiyle 30 derece sarılmasıyla üretilen ve yüzeyine herhangi bir deformasyon işlemi uygulaması yapılmamış kompozit donatıların beton ile aralarındaki aderans dayanımları çekip çıkarma deneyleriyle araştırılmıştır. Elde edilen bulgular literatürdeki salt çelik donatıların, salt karbon FRP donatıların ve çelik-bazalt, çelik-karbon, çelik-cam FRP donatıların aderans dayanımları ile karşılaştırılmıştır. Çalışma sonucunda karbon FRP sargılı çelik kompozit donatıların yüzeyinde herhangi bir deformasyon işlemi olmamasına rağmen ortalama bir aderans dayanımına ve düz, kumlanmış, demet ve örgülü yüzey özelliğine sahip donatılardan da daha iyi bir aderans dayanımına sahip olduğu gözlemlenmiştir.

Anahtar Kelimeler

Karbon lifi , karbon lifi takviyeli çelik donatı , hibrit donatı , kompozit , çekip çıkarma deneyi , FRP donatı , CTP , Aderans dayanımı

References

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Details

Primary Language

Turkish

Subjects

Civil Engineering

Journal Section

Research Article

Authors

Erkan Türkmen Dönmez ^*
0000-0002-3002-5589
Türkiye

Boğaçhan Başaran
0000-0002-5289-8436
Türkiye

Publication Date

June 18, 2021

Submission Date

March 15, 2021

Acceptance Date

April 29, 2021

Published in Issue

Year 2021 Volume: 13 Number: 2

DOI

https://doi.org/10.29137/umagd.897284

IZ

https://izlik.org/JA78LR68FD

APA

Dönmez, E. T., & Başaran, B. (2021). Epoksi Emdirilmiş Karbon Lifi Sargılı Çelik Donatıların Aderans Dayanımı. International Journal of Engineering Research and Development, 13(2), 625-634. https://doi.org/10.29137/umagd.897284

Kırıkkale University, Faculty of Engineering and Natural Science, 71450 Yahşihan / Kırıkkale, Türkiye.

ijerad@kku.edu.tr

Bond Strength of Epoxy Impregnated Carbon Fiber Wrapped Steel Reinforcement

Abstract

Keywords

Epoksi Emdirilmiş Karbon Lifi Sargılı Çelik Donatıların Aderans Dayanımı

Öz

Anahtar Kelimeler

References

Details

Primary Language

Subjects

Journal Section

Authors

Publication Date

Submission Date

Acceptance Date

Published in Issue

DOI

IZ

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