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Beton, farklı özelliklerdeki malzemelerin birlikte kullanılmasıyla oluşturulan kompozit bir mühendislik malzemesidir. Bu kompoziti oluşturan her bileşenin fiziksel ve mekanik performans açısından önemli düzeyde etkileri bulunmaktadır. Betonun en önemli bileşenlerinden bir tanesi de agregalar olup agregaların birim ağırlığı, iç yapısı, mekanik özelikleri, yüzey formu vb. gibi birçok özelliği betonun fiziksel, mekanik, durabilite, radyoaktif etkilere karşı koyma yeteneği gibi mühendislik performanslarını doğrudan etkilemektedir. Bu çalışma kapsamında, farklı tipteki agregaların çelik lifli betonlarda taze ve sertleşmiş beton özelliklerine etkileri incelenmiştir. Bu doğrultuda, kırmataş agrega (KTA) ve doğal agrega (DOA) ile C35 dayanım sınıfında çelik lifli beton numuneler üretilmiştir. Üretilen betonların taze ve sertleşmiş beton özellikleri belirlendikten sonra agrega tipinin çelik lifli betonlarda kırılma enerjisine etkisini incelemek amacıyla çentikli kiriş numuneler üzerinde kırılma enerjisi deneyleri yapılmıştır. Sonuç olarak KTA ile üretilen betonların dolaylı çekme ve enerji yutma kapasitesi açısından DOA ile üretilen betonlara kıyasla daha iyi bir performans gösterdiği ve normal betonda bilinen bu durumun lifli betonlar için de geçerli olduğu belirlenmiştir.
Beton is a composite engineering material created by the joint use of materials of different characteristics. Each component that forms this composition has significant effects in terms of physical and mechanical performance. One of the most important components of the concrete is the aggregates, the unit weight of the aggregates, the internal structure, mechanical properties, surface shape, etc. Many of its features directly affect the engineering performance, such as the capacity of concrete to resist physical, mechanical, durability, radioactive effects. In this study, the effects of different types of aggregates on the properties of fresh and hardened concrete in steel fiber concrete have been studied. In this regard, crushing agrega (KTA) and natural agrega (DOA) with C35 resistance class steel fiber concrete samples were produced. Following the determination of the characteristics of the fresh and hardened concrete of the produced concrete, the effect of the agrega type on the breaking energy in the steel fiber concrete has been tested with the aim of breaking the energy on the cranberry steel samples. As a result, it has been determined that concrete produced with KTA has better performance compared to concrete produced with DOA in terms of indirect drawing and energy absorption capacity, and this condition known in normal concrete is also applicable to fiber concrete.
Concrete is a composite engineering material produced by using materials with different properties. Each component forming concrete has significant effects in terms of physical and mechanical performance. One of the most important components of concrete is aggregates. The unit weight, internal structure, mechanical properties, surface form, etc. of the aggregates directly affect the engineering performances of concrete such as physical, mechanical, durability and ability to resist radioactive effects. In this study, the effects of different types of aggregates on the properties of fresh and hardened concrete in steel fiber reinforced concretes were investigated. Accordingly, C35 strength class steel fiber concrete samples were produced by using crushed stone aggregate and natural aggregate. After determining the fresh and hardened concrete properties of the produced concrete, fracture energy tests were carried out on notched beam samples in order to examine the effect of aggregate reinforced concretes. As a result, it has been determined that concretes produced with crushed limestone aggregates have a better performance in terms of indirect tensile and energy absorption capacity compared to concretes produced with natural aggregates and this situation known in normal concrete is also valid for fiber reinfroced concretes.
Field : Mühendislik
Journal Type : Ulusal
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