Kuat Tarik Belah Silinder Beton Dengan Perkuatan Eksternal Komposit Serat Rumput Payung (Cyperus Alternifolius) Matrix Epoxy
Keywords:
External Reinforcement, Cyperus Alternifolius Fiber Composite, Concrete Splitting Tensile Strength, Fiber Alkalization, Reinforcement ThicknessAbstract
Structural reinforcement is essential in construction. When structural damage occurs, external strengthening is applied. umbrella grass (Cyperus Alternifolius) with epoxy matrix is a composite material derived from wild plants with strong, durable fibers. The composite consists of crabgrass fiber as filler and epoxy glue as matrix. Fiber alkalization is necessary to remove sap and substances that hinder fiber-matrix bonding. The alkalization process uses 5% NaOH solution for one hour.Test spesimens were normal quality concrete cylinders (f'c = 25 MPa) with and without external reinforcement. Concrete mix design followed SNI 7656-2012. Reinforcement thickness variations were 0 mm (A), 1 mm (B), and 2 mm (C), applied using the wrapping method. Splitting tensile strength testing followed SNI 2491-2014. Each variation had 5 spesimens (total 15 spesimens). Results showed increased splitting tensile strength with external crabgrass fiber composite reinforcement. Average compressive strength increased by 0.07 MPa per thickness variation: (A) 2.14 MPa, (B) 2.21 MPa, and (C) 2.29 MPa. This f'c increase is caused by thickness variation affecting splitting tensile strength. Deformation differed between reinforced and unreinforced spesimens.
References
Bowles, J. E. (1993). Analisis dan Desain Pondasi. Erlangga.
Frick, Henz, & Setiawan, P. L. (2001). Ilmu Konstruksi Bangunan (Kanisius (ed.)).
Hardiyatmo, H. . (2015). Analisis dan Perancangan Pondasi II. Gramedia Pustaka Utama.
Jusi, U. (2018). Analisa Kuat Dukung Pondasi Bored Pile Berdasarkan Data Pengujian Lapangan (Cone Dan N-Standard Penetration Test). SIKLUS: Jurnal Teknik Sipil, 1(2), 50–82. https://doi.org/10.31849/siklus.v1i2.136
Rahardjo, P. P. (2000). Manual Pondasi Tiang. Program Pascasarjana Teknik Sipil, Universitas Katolik Parahyangan.
Tobing, D. L. (2019). Analisis Daya Dukung Pondasi Bore Pile pada Proyek Pembangunan Gedung Wahid Hasyim Apartment Medan. 1–79.
Wahyusep.(2012). Pondasi Strauss atau Bore Pile. http://belajarsipil.blogspot.com/2012/06/pondasi-strauss-pile-atau-bored-pile.html
Yuliawan, E., & Sipil, M. (2018). Analisis Daya Dukung dan Penurunan Pondasi Tiang Berdasarkan Pengujian SPT dan Cyclic Load Test. Jurnal Konstruksia, 9(2), 1–13.
Ade Inanta, C. (2019). ANALISIS PERLAKUAN ALKALI SERAT RUMPUT PAYUNG (Cyperus Alternifolius) TERHADAP KEKUATAN TARIK PLAFON KOMPOSIT DENGAN MATRIX EPOXY.
Ain, R., & Bey, E. (2010). FRP-confined Concrete Cylinders: Axial Compression Experiments and Strength Model 1. 29(16). https://doi.org/10.1177/0731684409355199
Arbi, M. H. (2014). Hubungan Antara Tegangan-regangan (Stress – Strain Relationships) Pada Beton. Lentera: Jurnal Ilmiah Sains Dan Teknologi, 14(10), 38–44.
Design, M. I. X., Tabel, C., & Bagio, H. (2016). Mix Design - SNI 7656 - 2012. 2012, 2–7.
Ginting, A., Satriyajati, A. N., Jurusan, D., Sipil, T., Teknik, F., Janabadra, U., Jurusan, A., Sipil, T., Teknik, F., & Janabadra, U. (2013). Kuat Tekan Beton Berdasarkan Sni-Dt-91-0008-2007 Pada Berbagai Variasi Kadar Air Agregat 2. Jurnal Teknik, 3(1), 1–10.
Indonesia, S. N., & Nasional, B. S. (2011). Cara uji kuat tekan beton dengan benda uji silinder.
Khalil, H. P. S. A., Bhat, I. U. H., Jawaid, M., Zaidon, A., Hermawan, D., & Hadi, Y. S. (2012). Bamboo fibre reinforced biocomposites : A review. Materials and Design, 42, 353–368. https://doi.org/10.1016/j.matdes.2012.06.015
Limited, W. P. (2011). FIBROUS AND COMPOSITE MATERIALS FOR CIVIL ENGINEERING APPLICATION (F. R (ed.)). WOODHEAD PUBLISHIG.
Mohammed, L., Ansari, M. N. M., Pua, G., Jawaid, M., & Islam, M. S. (2015). A Review on Natural Fiber Reinforced Polymer Composite and Its Applications. International Journal of Polymer Science, 2015, 1–15. https://doi.org/10.1155/2015/243947
Padwal, P. S., & Parekar, S. R. (2016). Review paper of Analysis of FRP Confined Cylinders under Axial Compression. 3(6), 12–15.
Pah, J. J. S. (2016). KOMPONEN STRUKTUR BETON DENGAN PERKUATAN EKSTERNAL. V(1), 53–66.
Prianggoro, H. (2009). Rumput Payung: Si Bandel yang Fleksibel. KOMPAS.Com.
Rahai, A. R., Sadeghian, P., & Ehsani, M. R. (2008). Experimental Behavior of Concrete Cylinders Confined with CFRP Composites.
Rahman, A., Farid, M., & Ardhyananta, H. (2016). Pengaruh Komposisi Material Komposit dengan Matriks Polypropylene Berpenguat Serat Alam Terhadap Morfologi dan Kekuatan Sifat Fisik. Teknik ITS, 5(2), 209–211.
SNI 2491. (2014). Metode uji kekuatan tarik belah spesimen beton silinder Standard Test Method for Splitting Tensile Strength of. Badan Standardisasi Nasional, 1–17.
Talinusa, O. G., Tenda, R., Tamboto, W. J., Teknik, F., Sipil, J. T., Sam, U., & Manado, R. (2014). PENGARUH DIMENSI BENDA UJI TERHADAP KUAT TEKAN BETON. 2(7), 344–351.
Wariyatno, N. G., & Haryanto, Y. (2013). SERAT KASA ALUMINIUM AKIBAT VARIASI SUHU Compressive Strength and Split Cylinder Strength As The Estimated Value of Residual Strength of Aluminium Wire-mesh Fibre Concrete Due to Variation of Temperature. 9(1).
Yoedono, B. S., Santjojo, D. J. D. H., & Martino, B. (2017). ANALISIS KEKUATAN LENTUR PLAFON KOMPOSIT SERAT RUMPUT PAYUNG ( Cyperus Alternifolius) DENGAN MATRIK EPOXY. Proceeding of National Seminar-Muhammadiyah University-Malang-2017, ISBN : 978-979-796-292-0, 2–8.
