Tuba BAHTLİ
(Necmettin Erbakan Üniversitesi, Mühendislik ve Mimarlık Fakültesi, Metalurji ve Malzeme Mühendisliği Bölümü, Meram, Konya, Türkiye)
Nesibe Sevde OZBAY
(Necmettin Erbakan Üniversitesi, Fen Bilimleri Enstitüsü, Makine Mühendisliği Bölümü, Meram, Konya, Türkiye)
Yıl: 2020Cilt: 11Sayı: 1ISSN: 2548-0928 / 2548-0928Sayfa Aralığı: 11 - 15İngilizce

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Destructive and non-destructive testing of bronze-waste tire-concrete composites
In this study, the effects of finely-milled bronze and waste tire on the mechanical properties of concrete have been investigated. Approximately 2.5% and 5% by weight for each additive (bronze sawdust and waste tire) were added to dry concrete. The open porosity, density, compressive strength values of cured concrete have been determined. In addition, the Schmidt rebound hammer (SRH) and the ultrasonic pulse velocity (UPV) tests, which are non-destructive test methods, were applied. The microstructure and fracture surfaces of these materials were characterized by scan-ning electron microscopy (SEM). It was observed that the density of pure concrete was 2.35 g/cm3 while the density was 2.19 g/cm3 for a C+5%B+5%T material. Simi-larly, pure concrete had an almost three times better compressive strength and a two times better SRH value than those of the C+5%B+5%T material. The density and me-chanical properties of concrete materials containing bronze and waste tire decreased due to micro crack formations, weak bonding and deep cracks forming especially be-tween the concrete and additives.
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