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Masdar Helmi
Universitas Lampung
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Journal : journal of the civil engineering forum

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Effects of Carbon Fiber on Mechanical Properties of Reactive Powder Concrete Helmi, Masdar; Alraimi, Ala Ali Qasem
Journal of the Civil Engineering Forum Vol. 10 No. 3 (September 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.12439

Abstract

The use of fiber generally might change the mechanical properties of concrete in flexural or compressive strength. Reactive powder concrete (RPC) is one of the ultra-high-performance concrete types that has been applied for some constructions. Carbon fiber, having high strength in tensile, also has the potency to improve the physical characteristics of RPC. The purpose of this study is to evaluate the flexural and compressive performance of RPC, focusing on the interfacial binding of carbon fiber. Flexural and compressive tests used samples with dimensions of 40 x 40 x 160 mm were tested in accordance with BS-EN-196-1:2011, which allows to use one of the two broken pieces from the flexural test as the sample. The microstructure surrounding carbon fiber and paste was qualitatively compared using Scanning Electron Microscopy (SEM) in the secondary electron detector mode. Samples were subjected to static pressure at 8 MPa after 1 hour of pouring and heat curing at 240 °C in a dry oven after demolding. Results show that the presence of carbon fiber increased the flexural strength of RPC by up to 28.85% for samples without treatments and up to 14.32% for samples with both treatments. Although carbon fiber increased toughness by 20% and flexural modulus by 6%, it had no effect on the failure mode after reaching the peak load, which remained brittle. On the other hand, the presence of carbon fiber had little effect on compressive strength. Despite the pressure and heat, curing treatments had no effect on enhancing the adhesion between carbon fiber and cement paste, which was indicated by theundamaged surface of carbon fiber. However, the implementation of both treatments on samples might produce RPC with good mechanical properties in flexure.
Co-Authors Abdullah, Habib Ilham Aditia Reshi Dista Agustin, Cahyani Putri Agustinus Purna Irawan Agustriana, Vera Ahmad Wahyudi Ahmad Zaenudin Ahmad Zakaria Alraimi, Ala Ali Qasem An Nisa Magnolia Annisa, Mufidah Aulia Bagus Rifai Basith A, Muhammad Billy Muchtar brina, ardi elsa Dhea Yulia Resmonida Dista, Aditia Reshi Dista, Aditia Reshi Endro Prasetyo Wahono Fikri Alami Fikri Alami Fikri Alami Firdasa, Silsila Jana Firdaus, Afridho Habib Ilham Abdullah Hadi, Ayatullah Hasti Riakara Husni Herizon, Ahmad Ika Kustiani Ikromi, Muhammad Fauzan Ilham Fajar Khairi Irawan, Doni Irianti, Laskmi Islamy, Zamzami Isnaeni, Mohd Isneini, Mohd Isneini, Muhammad Iswan Iswan Jamiatul Akmal Jaya, Redhinansyah Kurniawan kartorono, suyadi Laksmi Irianti Laksmi Irianti Laskmi Irianti Luthfi Ardeansyah R Malau, Joses Aristo Martinus, Martinus Medi Yandriguna Mohd. Isneini Mufidah Aulia Annisa muhammad karami Nadya Safira Nasution, Ali Napiah Niken DWSBU Niken, Chatarina Noorhayati, Siti Mahmudah nur syahidah aini Rahayu Sulistyorini Ratna Widyawati Resmonida, Dhea Yulia Safari, Azka Muhammad Safira, Nadya Sari, Rendityas Mayang Shirley Savetlana, Shirley silsila jana firdasa Solikhin, Ridho Solikhin Suharno Suharno Sulistiyorini, Rahayu Sumantri, Devie Arisandy Supratman, Hadi Suri, Yola Andara Pratami Surya Sebayang Surya Sebayang Surya Sebayang Suyadi Suyadi Suyadi Syamsurijal Rasimeng Todo Herdyson Sitohang Tri Ratna Utami Tugiyono Tugiyono Utami, Tri Ratna Vera Agustriana Noorhidana Vera Agustriana Noorhidana Yoga Marta Agustiawan Zikrillah, Daffa