Journals / Dokuz Eylül Üniversitesi Mühendislik Fakültesi Fen ve Mühendislik Dergisi / 2022 / Cilt: 24 - Sayı: 72

Corrosion Performance Investigation of Reinforcement Bars Coated with Cement and Mineral Admixture Slurry

Mineral Katkılı Çimento Bulamacı Kaplanmış Betonarme Donatıların Korozyon Performansının İncelenmesi

Pages
869–874
Publication Date
2022-10-15
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

According to the test results, it was determined that the slurry coating application decreased the corrosion potential values and the corrosion current density values of the reinforcements in the samples exposed to the wetting and drying cycles in the sodium chloride environment.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:Reinforcement corrosion is considered as one of the most important parameters determining the service life of reinforced concrete structures.
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Key Findings & Data:In addition to silica fume at 30% of the cement amount by mass, blast furnace slag at 25% and 50% of the cement amount was used in mineral added cement slurries.
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Conclusion & Impact:According to the test results, it was determined that the slurry coating application decreased the corrosion potential values and the corrosion current density values of the reinforcements in the samples exposed to the wetting and drying cycles in the sodium chloride environment.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Donatı Korozyonu · Mineral Katkı · Çimento Bulamacı

Abstract

Reinforcement corrosion is considered as one of the most important parameters determining the service life of reinforced concrete structures. In this study, an alternative method that protects reinforced concrete reinforcements against the effects of corrosion has been examined. Within the scope of the study, in addition to the traditionally produced reference reinforced concrete samples, reinforced concrete samples produced with mineral additive cement slurry coated reinforcements were prepared. In addition to silica fume at 30% of the cement amount by mass, blast furnace slag at 25% and 50% of the cement amount was used in mineral added cement slurries. According to the test results, it was determined that the slurry coating application decreased the corrosion potential values and the corrosion current density values of the reinforcements in the samples exposed to the wetting and drying cycles in the sodium chloride environment.

Özet

Günümüzde betonarme yapıların güvenli servis ömrünü belirleyen en önemli parametrelerden biri donatı korozyonu olarak değerlendirilmektedir. Bu çalışmada betonarme donatılarını korozyon etkilerine karşı koruyan alternatif bir yöntem incelenmiştir. Çalışma kapsamında geleneksel olarak üretilmiş referans betonarme numunelerin yanında, mineral katkılı çimento bulamacı kaplanmış donatılarla üretilen betonarme numuneler hazırlanmıştır. Mineral katkılı çimento bulamaçlarında çimento miktarının kütlece %30 oranında silis dumanına ilave olarak çimento miktarının kütlece %25 ve %50 oranlarında yüksek fırın cürufu kullanılmıştır. Deney sonuçlarına göre bulamaç kaplama uygulamasının sodyum klorür çözeltisinde ıslanma kuruma etkisine maruz kalan numunelerde donatıların korozyon potansiyeli değerlerini azalttığı ve korozyon akım yoğunluğu değerlerini düşürdüğü tespit edilmiştir.

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Cite This Article

YİĞİTER, H. (2022). Corrosion Performance Investigation of Reinforcement Bars Coated with Cement and Mineral Admixture Slurry. Dokuz Eylül Üniversitesi Mühendislik Fakültesi Fen ve Mühendislik Dergisi, Cilt: 24 - Sayı: 72, 869–874. https://ajindex.com/articles/491306

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References (13)

  1. Baradan, B., Yazıcı, H. ve Ün, H. 2002. Betonarme Yapılarda Kalıcılık (Durabilite) (1. Baskı). İzmir: D.E.Ü. Mühendislik Fakültesi Yayınları
  2. Proverbio, E. & Cigna, R. 1995. Influence of rebar surface condition on polarization resistance measurements in concrete structures. Materials Science Forum, 192-194: 877-882
  3. John, D.G., Coote AT., Treadaway, K.W.J. & Dawson, J.L. 1983. Repair of concrete – A laboratory and exposure site investigation. In A.P. Crane, (Ed.). Corrosion of reinforcement in concrete construction (263-286). London: Halsted Press
  4. Maslehuddin, M., Al-Zahrani, M. M., Abdulguddus, S.U.A., Rehman, S. & Ahsan, S.N. 2002. Effect of steel manufacturing process and atmospheric corrosion on the corrosion resistance of steel bars in concrete. Cement and Concrete Composites, 24, 151-158
  5. Andrade, C., Alonso, C. & Sarria, J. 2002. Corrosion rate evolution in concrete structures exposed to the atmosphere. Cement and Concrete Composites, 24, 55-64
  6. Zivica, V. 2003. Corrosion of reinforcement induced by environment containing chloride and carbondioxide. Bulletin of Materials Science, 26 (6), 605-608
  7. Ghorbani, S. et al. 2018. Improving corrosion resistance of steel rebars in concrete with marble and granite waste dust as partial cement replacement. Construction and Building Materials, 185, 110–119
  8. Heniegal, A. M., Amin, M. and Youssef, H. 2017. Effect of silica fume and steel slag coarse aggregate on the corrosion resistance of steel bars. Construction and Building Materials, 155, 846–851
  9. Zhang, P. et al. 2017. Steel reinforcement corrosion in concrete under combined actions: The role of freeze-thaw cycles, chloride ingress, and surface impregnation. Construction and Building Materials, 113–121
  10. Sobhani, J., Najimi M. 2013. Electrochemical impedance behavior and transport properties of silica fume contained concrete. Construction and Building Materials, 47, 910-918
  11. ASTM C876-15 Standard Test method for corrosion potentials of uncoated reinforcing steel in concrete. American Society for Testing and Materials. PA- USA
  12. Banar, R., Dashti, P., Zolfagharnasab, A., Ramezanianpour, A.M., Ramezanianpour, A.A. 2022. A comprehensive comparison between using silica fume in the forms of water slurry or blended cement in mortar/concrete. Journal of Building Engineering, 46, 103802
  13. Jin, H., Li, Z., Zhang, W., Liu, J., Xie, R., Tang, L., Zhu, J. 2022. Iodide and chloride ions diffusivity, pore characterizati