Geri Dönüştürülmüş Agrega İçeren Kendiliğinden Yerleşen Betonun Mühendislik Özelliklerinin Optimizasyonu

Şevin Ekmen

doi:10.17780/ksujes.1467224

TR EN

Geri Dönüştürülmüş Agrega İçeren Kendiliğinden Yerleşen Betonun Mühendislik Özelliklerinin Optimizasyonu

Öz

Kendiliğinden yerleşen beton yüksek işlenebilirliğe sahip olmasının yanı sıra mühendislik özellikleri açısından yeterli performansı göstermesi nedeni ile oldukça ilgi gören özel bir beton çeşididir. Bu çalışmada geri dönüştürülmüş agrega içeren kendiliğinden yerleşen beton uygulamalarının yer aldığı literatür çalışmaları dikkate alınarak Tepki Yüzey Metodu ile optimizasyon çalışması gerçekleştirilmiştir. Yürütülen optimizasyon çalışmasında geri dönüştürülmüş ince ve iri agrega yüzdeleri ile su/çimento oranı girdi parametreleri olarak seçilmiştir. Bu kapsamda kendiliğinden yerleşen betonun taze özelliğini yansıtan yayılma çapı değerleri ile sertleşmiş performansını gösteren basınç dayanımı parametreleri irdelenmiştir. Kullanılan bu yöntem sayesinde dikkate alınan girdi değişkenlerinin çıktı parametreleri üzerindeki etkisini yansıtan modeller oluşturulmuştur. Agrega miktarları ve basınç dayanımı maksimize edilmiş olup diğer parametreler serbest bırakılmıştır. Yayılma çapı için ise hedef değer tanımlaması yapılmıştır. Ayrıca gerçekleştirilen varyans analizi sonucunda oluşturulan modellerin anlamlılığı ortaya konulmuştur. Oluşturulan modelin arzu edilebilirlik değeri 0.734 olarak elde edilmiştir. Böylece istenilen düzeye anlamlı bir derecede yaklaşılarak geri dönüştürülmüş agrega içeren kendiliğinden yerleşen beton için optimum tasarım parametrelerine ulaşılmıştır.

Anahtar Kelimeler

OPTIMIZATION OF ENGINEERING PROPERTIES OF SELF-COMPACTING CONCRETE CONTAINING RECYCLED AGGREGATE

Abstract

Self-compacting concrete is a special type of concrete that attracts a lot of attention due to its high workability and adequate performance in terms of engineering properties. In this study, an optimisation study was carried out with the Response Surface Method considering the literature studies on self-compacting concrete applications containing recycled aggregates. In the optimisation study, recycled fine and coarse aggregate percentages and water/cement ratio were selected as input parameters. In this context, spread diameter values reflecting the fresh property of self-compacting concrete and compressive strength parameters showing the hardened performance were examined. Thanks to this method, models reflecting the effect of the input variables on the output parameters were created. Aggregate amounts and compressive strength were maximised and other parameters were left free. A target value was defined for the spreading diameter. In addition, the significance of the models created as a result of the analysis of variance was revealed. The desirability value of the model was obtained as 0.734. Thus, the optimum design parameters for self-compacting concrete containing recycled aggregate were reached by significantly approaching the desired level.

Keywords

Kaynakça

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Ayrıntılar

Birincil Dil

Türkçe

Konular

İnşaat Yapım Mühendisliği

Bölüm

Araştırma Makalesi

Yazarlar

Şevin Ekmen ^*
0000-0002-2577-696X
Türkiye

Yayımlanma Tarihi

3 Haziran 2024

Gönderilme Tarihi

9 Nisan 2024

Kabul Tarihi

29 Nisan 2024

Yayımlandığı Sayı

Yıl 2024 Cilt: 27 Sayı: 2

DOI

https://doi.org/10.17780/ksujes.1467224

IZ

https://izlik.org/JA92SU25WS

Kaynak Göster

RIS / Bibtex

APA

Ekmen, Ş. (2024). Geri Dönüştürülmüş Agrega İçeren Kendiliğinden Yerleşen Betonun Mühendislik Özelliklerinin Optimizasyonu. Kahramanmaraş Sütçü İmam Üniversitesi Mühendislik Bilimleri Dergisi, 27(2), 459-469. https://doi.org/10.17780/ksujes.1467224