Yerinde Erken Yaş Beton Dayanımını Belirlemek İçin Kombine Metotların Geliştirilmesi

Yıl 2022, , 1400 - 1412, 28.12.2022

Yavuzhan Taş , Muhammed Ulucan , Kürşat Esat Alyamaç

https://doi.org/10.35414/akufemubid.1147118

Öz

Bu çalışma, yerinde erken yaş beton dayanımını yüksek doğrulukla tespit etmek için kombine metotlar geliştirmek ve geliştirilen modelleri uygulama yapısı üzerinde test edilmesini amaçlamaktadır. Bu amaçla, Elazığ-Malatya İlleri arasında 2016-2020 yılları arasında inşa edilen Yeni Kömürhan Köprüsünün pilon betonlarından, tahribatsız test metodu ölçümleri ve beton numuneler alınmıştır. Elde edilen ölçüm ve numunelerin test sonuçları kullanılarak tepki yüzeyi metodu (RSM) yardımıyla matematiksel modeller geliştirilmiştir. Geliştirilen matematiksel modeller esas alınarak tahribatsız test metotlarının ikili kullanımlarıyla üç farklı kombine metot geliştirilmiştir. Yapılan bu çalışma sonucunda, geliştirilen kombine metotlar, kömürhan köprüsü pilon betonlarının yerinde erken yaş beton dayanımını test etmek için kullanılmıştır. Pilonların 3 ve 7 günlük basınç dayanımları, geliştirilen kombine metotlarla tahmin edilmiştir. Bu tahminler sonucunda, ikili kombine metotların iyi sonuçlar verdiği görülmüştür. Geliştirilen kombine metotlar, Kömürhan köprüsü gibi büyük ve prestijli bir yapıda test edilmiş, yerinde erken yaş beton dayanımını yüksek doğrulukla tahmin ettikleri görülmüştür. Böylece, kombine metotların büyük ve prestijli yapılarda kullanımının önemli miktarda maliyet kazancı, kalıp alma süresinden kaynaklı zaman tasarrufu ve iş gücü kazancı sağlayacağı düşünülmektedir

Anahtar Kelimeler

Kombine metotlar, Tahribatsız test metotları, Yerinde erken yaş beton dayanımı, Kömürhan köprüsü, Tepki yüzeyi metodu, In-place early age concrete strength

Development of Combined Methods to Estimate Early Age Concrete Strength In-place Using Non-destructive Test Methods: Example of The Kömürhan Bridge

Öz

This study aims to develop combined methods to determine the in-place early age concrete strength with high accuracy and test the developed models on the application structure. For this purpose, non-destructive test method measurements and concrete samples were taken from the pylon concretes of the New Kömürhan Bridge built between Elazig-Malatya Provinces among 2016-2020. Mathematical models are developed with the help of the response surface method (RSM) using the samples' obtained non-destructive test measurements and strength results. Based on the developed mathematical models, three different combined methods have been developed with double use of non-destructive test methods. As a result of this study, the combined methods developed were used to test the in-place early age concrete strength of the Kömürhan Bridge pylons. The compressive strengths of these pylons for 3 and 7 days have been estimated with the combined methods developed. As a result of these estimates, it was seen that the double combined methods gave good results. The combined methods developed have been tested in a large and prestigious building such as the Kömürhan Bridge, and it has been seen that they predict the in-place early age concrete strength with high accuracy. Thus, it has been understood that the use of combined methods in large and prestigious buildings will provide significant cost savings, time savings due to formwork stripping times and labor gain.

Anahtar Kelimeler

Combined methods, Non-destructive test methods, Kömürhan bridge, Response surface method, In-place early age concrete strength

Kaynakça

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