Journal of Engineering and Applied Science· 2026Q2
Uçucu Kül ve Bazalt Elyaf Kirişler, Farklı FRP Sargı Konfigürasyonlarıyla Güçlendirildiğinde Performansı Artırıyor
Assessment of mechanical response and damage mechanisms in fly ash and basalt fiber beams strengthened with different FRP wrap configurations
- 0atıf
- Q2SCImago
- 2026yıl
Kısa özet
1.5% bazalt elyaf ve 100 mm aralıklı GFRP sargılı betonarme kirişler, kontrol kirişlerini ve EGFRP sargılı olanları geride bırakarak en yüksek yük taşıma kapasitesini ve sapmayı elde etti.
Yapay zekâ ile başlık ve abstract'tan üretildi; tam metin okunmaz.
Ana noktalar
- Betondaki %1.5 bazalt elyaf içeriği, mukavemet ve deformasyon kapasitesi arasında en uygun dengeyi sağladı.
- Dış FRP sargı, kiriş performansını önemli ölçüde iyileştirdi; daha yakın aralıklar (50-75mm) üstün sınırlama ve çatlak kontrolü sağladı.
- GFRP sargı, EGFRP sargıya tutarlı bir şekilde üstün geldi.
- En iyi performansı gösteren kiriş, %1.5 bazalt elyafı 100 mm aralıklı GFRP sargı ile birleştirerek en yüksek yük taşıma kapasitesini ve sapmayı elde etti.
Yapay zekâ ile başlık ve abstract'tan üretildi; tam metin okunmaz.
Özet (abstract)
Abstract Sustainable materials and effective strengthening methods can contribute to the significant improvement of the structural performance and durability of reinforced concrete (RC) beams. 40% cement-fly ash replacement offers better sustainability and workability, whereas fibre reinforcement and external fibre reinforced polymer (FRP) wrapping are able to offer better strength and ductility. This paper is an experimental study where thirteen RC beams were studied, one of them being a conventional control beam, basalt fibre reinforced beam (BFRB) fibre contents of 0.5%, 1%, 1.5%, 2% and beams strengthened by applying E-glass fibre reinforced polymer (EGFRP) wraps, and glass fibre reinforced polymer (GFRP) wraps at 50, 75, 100, and 150 mm. In all mixes of concrete, fly ash was used as a partial replacement of cement (12.5%). The beams were tested to assess the load–deflection response, stiffness, ductility, cracking and failure modes. The mid-span deflections were determined analytically and the deflection was determined by the double integration method, which was compared to the experimental results. Basalt fibre content was found to result in much higher load-carrying capacity, stiffness, ductility and crack control than in the control beam, and a 1.5% of basalt fibre gave the best balance between strength and deformation capacity. A higher fibre dosage of 2.0% resulted in reduced performance due to fibre agglomeration. External FRP wrapping further improved beam performance, with closer wrapping spacings (50 and 75 mm) offering superior confinement and crack-bridging effects. GFRP wrapping consistently outperformed EGFRP, and the GFRP-wrapped beam with 1.5% basalt fibre and 100 mm spacing achieved the highest load capacity and deflection. As a whole, the obtained results showed that the concrete beams can be reinforced with the observed load conditions by applying the combination of fly ash, basalt fibres and external FRP wrapping.
Yazarların özeti; kaynağından alınmıştır. Journal of Engineering and Applied Science, 2026 · DOI ↗
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