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Journals / Sürdürülebilir Mühendislik Uygulamaları ve Teknolojik Gelişmeler Dergisi / 2025 / Cilt: 8 Sayı: 2

Performance of SIMCON in Structural Retrofitting Under Freeze–Thaw Exposure

Donma-Çözülme Etkisi Altında Yapısal Güçlendirme Uygulamalarında Kullanılan SIMCON'un Performansı

Ömer Karagöz(ESKİŞEHİR OSMANGAZİ ÜNİVERSİTESİ)0000-0002-3755-8345
Serdal Ünal(ESKİŞEHİR OSMANGAZİ ÜNİVERSİTESİ)0000-0002-5200-9969
Kerem Aybar(ESKİŞEHİR OSMANGAZİ ÜNİVERSİTESİ)0000-0001-6347-843X
Mehmet Canbaz(ESKİŞEHİR OSMANGAZİ ÜNİVERSİTESİ)0000-0002-0175-6155
Pages
100–108
Publication Date
2025-12-12
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AI Summary & Key Takeaways

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

The results showed that all properties deteriorated with increasing number of cycles; however, CAC-based composites consistently outperformed their CEM I counterparts.

📌 3 Key Takeaways

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Objective & Hypothesis:This study investigates the freeze-thaw (F-T) durability and mechanical performance of Slurry Infiltrated Mat Concrete (SIMCON) produced with two different binders, Portland cement (CEM I 42.5R) and calcium aluminate cement (CAC).
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Key Findings & Data:Specimens were subjected to 0, 15, and 30 F-T cycles and evaluated on the basis of unit weight, ultrasonic pulse velocity (UPV), flexural strength, and compressive strength.
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Conclusion & Impact:The results showed that all properties deteriorated with increasing number of cycles; however, CAC-based composites consistently outperformed their CEM I counterparts.
🔬Design:Araştırma Makalesi
📍Scope:Comprehensive Sample
⚙️Variables:SIMCON · Donma-Çözülme Dayanımı · Kalsiyum Alüminat Çimentosu (CAC)

Abstract

This study investigates the freeze-thaw (F-T) durability and mechanical performance of Slurry Infiltrated Mat Concrete (SIMCON) produced with two different binders, Portland cement (CEM I 42.5R) and calcium aluminate cement (CAC). SIMCON composites were fabricated by infiltrating cement pastes into randomly oriented steel wool mats, aiming for improved fiber distribution and matrix-reinforcement interaction. Specimens were subjected to 0, 15, and 30 F-T cycles and evaluated on the basis of unit weight, ultrasonic pulse velocity (UPV), flexural strength, and compressive strength. The results showed that all properties deteriorated with increasing number of cycles; however, CAC-based composites consistently outperformed their CEM I counterparts. After 30 cycles, CAC specimens retained 54% higher compressive strength and exhibited slower deterioration rates in UPV and flexural strength. The superior performance of CAC is attributed to its denser, more stable microstructure and its improved resistance to internal cracking and moisture damage. These findings demonstrate that CAC is a promising binder for SIMCON in infrastructure and retrofit applications exposed to harsh environmental conditions where long-term durability is critical.

Özet

Bu çalışma, portland çimentosu (CEM I 42.5R) ve kalsiyum alüminat çimentosunu (CAC) bağlayıcı olarak kullanarak üretilen çimento bulamacı emdirilmiş ağ şeklinde lif içeren beton (SIMCON) kompozitlerinin donma-çözülme (D-Ç) dayanımı ve mekanik performansını incelemektedir. SIMCON numuneleri, kontrollü olarak hazırlanmış çimento hamurlarının rastgele yerleştirilmiş çelik lif ağlarına emdirilmesiyle üretilmiş; bu sayede daha iyi lif dağılımı ile çimento – çelik lif arasındaki bağın ve yük transferinin geliştitirilmesi hedeflenmiştir. Numuneler 0, 15 ve 30 D-Ç çevrimine tabi tutulmuş ve birim hacim ağırlığı, ultrasonik geçiş hızı (UPV), eğilme dayanımı ve basınç dayanımı açısından değerlendirilmiştir. Sonuçlar, çevrim sayısının artmasıyla tüm özelliklerde bozulma olduğunu göstermiş; ancak CAC esaslı kompozitlerin CEM I içeren muadillerine kıyasla daha iyi performans gösterdiği görülmüştür. 30 çevrim sonunda, CAC numuneleri %54 oranında daha yüksek basınç dayanımı elde etmiş ve UPV ile eğilme dayanımında daha yavaş bozulma göstermiştir. CAC’nin üstün performansı, daha yoğun ve kararlı mikro yapısına ve iç çatlaklara ve neme karşı üstün direncine atfedilmiştir. Bu bulgular, uzun ömürlü dayanımın kritik olduğu zorlu çevresel koşullara maruz altyapı ve güçlendirme uygulamalarında SIMCON için CAC’nin umut vadeden bir bağlayıcı olduğunu göstermektedir.

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Cite This Article

Karagöz, Ö., Ünal, S., Aybar, K., Canbaz, M. (2025). Performance of SIMCON in Structural Retrofitting Under Freeze–Thaw Exposure. Sürdürülebilir Mühendislik Uygulamaları ve Teknolojik Gelişmeler Dergisi, Cilt: 8 Sayı: 2, 100–108. https://doi.org/10.51764/smutgd.1759647

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