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All Journal TEKNIK Journal of the Civil Engineering Forum Aceh International Journal of Science and Technology Jurnal Teknik Sipil Journal of The Civil Engineering Student Acta Geoscience, Energy, and Mining
Taufiq Saidi
Jurusan Teknik Sipil Universitas Syiah Kuala, Jl. Syech A. Rauf No. 7 Darussalam, Banda Aceh 23111
Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Energy Engineering Environmental Science Transportation

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Journal : Journal of the Civil Engineering Forum

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The Impact of Fiber Density and Layering in NFRP on Confined Concrete Compressive Strength Amalia, Zahra; Saidi, Taufiq; Hasan, Muttaqin; Al-Bakri, Nazira Suha; Fu, Li
Journal of the Civil Engineering Forum Vol. 10 No. 2 (May 2024)
Publisher : Department of Civil and Environmental Engineering, Faculty of Engineering, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jcef.10408

Abstract

Strengthening columns holds a crucial role in structural engineering and is frequently called for due to a range of factors, including heightened load requirements, structural degradation, design flaws, or the need for seismic retrofitting. Natural Fiber-Reinforced Polymers (NFRP) in concrete reinforcement has gained significant attention in recent years as a sustainable and eco-friendly alternative to strengthened reinforced concrete. NFRP jacketing presents an adaptable option, as it delivers an improved load-carrying capability as a confining effect. This paper explores the fundamental reasons behind the need for column strengthening and the advantages of employing NFRP jacketing as a preferred method. The study examined the influence of varying fiber densities and the number of fiber layers in NFRP on the mechanical properties of concrete, with a specific focus on its confined concrete compressive strength. The test specimen was a cylinder with a diameter of 150mm and a height of 300mm. NFRP, made from abaca fiber and resin, was attached around the specimen’s circumference to provide a confinement effect. Axial load was applied to the test specimen. The findings indicated that introducing abaca fiber as an NFRP material increased confined concrete compressive strength by up to 37% compared to unconfined concrete. Moreover, the application of three layers of NFRP fibers results in a 15% rise in confined concrete stress, especially when higher-density fiber types are utilized. Study findings suggest that natural fiber density and the number of layers play a role in enhancing concrete strength, however, their influence may not be significantly pronounced.
Co-Authors abdi, aufar Achmad, Ashfa Ajrina, Siti Ghufrani Akmal Muhni Al-Bakri, Nazira Suha Aldri Frinaldi Alfiansyah Yulianur BC Amalia*, Zahra Asyifa, Cut Nella Bambang Setiawan Fitri, Yarmiza Anggriyani Fu, Li Halida Yunita Hasan, Muttaqin Iskandar*, Juellyan Juellyan, Juellyan Maharani, Eva Ayudya Mahlil, Mahlil Muhammad Iqbal MUNIRA SUNGKAR, MUNIRA Muttaqin Muttaqin Muzhaffar, Imam Putri, Cut Rizka Ellysa Setiawan*, Bambang Teuku Budi Aulia Yulia Hayati, Yulia Zahra Amalia