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Zahra Amalia
Jurusan Teknik Sipil, Universitas Syiah Kuala
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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 Abdullah Abdullah Al-Bakri, Nazira Suha Aldri Frinaldi Ardiyanti, Dwi Ariston Asyifa, Cut Nella Chairany amsi Chairun Nisa Dewi Seftiana A Dewi, Rahma Rosita Didi Dinda Nur Salsabilah Erna Zakiyah Erni Yuningsih Erwin, Intan Nabillah Fadlia, Faradilla Faradilla Fadlia Fatonah, Sabrina Putri Fitria Herliana Fu, Li Hambani, Susy Harahap, Khairunnisa Hasan, Muttaqin Herliana, Fitria Hulmun, Nai Wise Ibrahim, Adrian Icha Widya Putri Idris, Yunita Ikhwan, Firas Rafiqul Indra Cahya Kusuma Iskandar Hasanuddin Izzaty, Nur Jannah, Maharani Qonita Kana Puspita karmila karmila Lubis, Jihan Syahirah Mahlil, Mahlil Mahmud, Intan Silmi Alya Marsinah, Siti Maulani Al umi Maulida, Utami Megan Asri Humaira Mochammad Afifuddin Muhammad Azwar Muhammad Iqbal Muhammad Lie Kelvin Aidy Muhammad Nazar Munawir Munawir Muttaqin Hasan Muttaqin Hasan Muttaqin Hasan Nella Asyifa, Cut Nita Hestiyana Nugraheni, Sri Wahyuningsih Nur Izzaty Oktovi, Rama Pasha, Davina Aslamy Patrisa, Indira Cahya Purwaningtyas, Restu Puspita, Kana Putri Ramadhani Putri, Cindy Dinda Putri, Nanda Pratama Putri, Nurhaida Fahrisma Putri, Shinta Febryana Fambudi Rabia Wahdah Radianto, Syifa Auladina Rahmad Effendi Ramadhan, Rayhan RAMADHAN, WAHYUDI Rudiansyah Putra Sabilla, Siti Inayatun Saeful Anwar, Saeful Salsabila, Lesya Adinda Siti Solehah, Siti Sofi Mubarok Sopiana Halizahra, Yusti Taufiq Saidi Taufiq Saidi Teuku Budi Aulia Teuku Budi Aulia Thamrin, Suyono Uswatun Hasanah Varadila Wahdah, Rabia Warizal Winda Maolinda Wirahman Salvana Yantie, Lisdha YANTO, SRI Yusria Darma Yusuf Matunry Zakirah, Rana