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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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Concrete Jacketing for Strength Enhancement of Square Columns in Corroded Reinforced Concrete Structures Amalia, Zahra; Mahlil, Mahlil; Ulza, Adrian; Saidi, Taufiq; Aulia, Teuku Budi; Asyifa, Cut Nella
TEKNIK Vol 46, No 3 (2025): Vol 46, No 3 (2025): July 2025 Publication in-progress
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/teknik.v46i3.70449

Abstract

Buildings submerged during the 2004 Aceh tsunami have shown signs of structural degradation, particularly due to corrosion in column reinforcement, raising concerns about reduced seismic performance. This study aims to evaluate the effectiveness of the concrete jacketing method in retrofitting corroded square reinforced concrete columns. Specimens measuring 200 × 200 mm² in cross-section and 580 mm in height were subjected to accelerated corrosion targeting 20% mass loss, followed by axial and lateral loading tests. The results showed that corrosion reduced shear strength by 23.93% compared to non-corroded specimens. However, retrofitted corroded square reinforced concrete column demonstrated a 15.65% increase in strength when the stirrup reinforcement yielded. However, the shear capacity showed a slight decrease compared to the corroded columns without jacketing. This unexpected reduction is attributed to the absence of joint strengthening in the retrofit, which governed the overall shear resistance. These findings highlight the importance of including joint enhancement when applying concrete jacketing for comprehensive structural recovery.
DISTRIBUSI GESER DALAM PADA BALOK BETON BERTULANG MUTU TINGGI DENGAN PENAMBAHAN SERAT KAWAT BENDRAT Fitri, Yarmiza Anggriyani; Aulia, Teuku Budi; Saidi, Taufiq
JURNAL TEKNIK SIPIL Vol 1, No 4 (2018): Volume 1 Special Issue, Nomor 4, Februari 2018
Publisher : Jurusan Teknik Sipil, Fakultas Teknik, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jts.v1i4.10047

Abstract

Abstract: The development and progress of the world quite rapidly accrue followed by a large number of the population led to an increase in the outstanding in the use of concrete. Concrete is widely used in the construction of the building works and means of transportation such as bridges, highways and other worksBasically the concrete has a high compressive strength, but had the ability to wiht stand the tensile and shear forcew low. This can be fixed by added a fibber on mortar concrete. The addition of fiber for decreasing the brittle and improving the survival of crack early (first crack) is a concrete it can be reached by adding polypropylene fiber, bendrat wire fiber and rubber tiress fiber. The purpose of this research is to observe the shear behavior of reinforced concrete beam with fiber is polypropylene fiber (PP), bendrat wire fiber and used rubber tiress. In this study 4 beams tested with measuring 15 x 30 x 220 cm each fiber type has a beam specimen and a beam specimen without the addition of fiber. Specimens designed for shear failure. The result showed all the beams are having shear failure as planned. Cement water factor (FAS) 0.25, bendrat wire fiber with a percentage of 2% of the volume of the concrete. The results showed a beam experiencing failed to slide as planned. The test results showed a beam BMT with the addition of fiber has a maximum load 26.03 tonnes, the first cracks occur on the load 5.10 tons. Beam with wire bendrat maximum load wire BMT 27.41 T, the first cracks occur on the load 5.90 T. For the magnitude of the shear style capacity contributed by shear reinforcement constann for all beams this is 1.653 T, while for a capacity of sliding style concrete donated by each to BMT fiber without adding Vc = 4.52 T and fiber wire bendrat BMT value of Vc = 4.55 T.Abstrak: Perkembangan dan kemajuan dunia yang cukup pesat diikuti dengan bertambah banyaknya jumlah penduduk mengakibatkan terjadinya peningkatan yang menonjol dalam penggunaan beton. Beton digunakan secara luas pada pekerjaan-pekerjaan pembangunan gedung dan sarana-sarana transportasi misalnya jembatan, jalan raya serta pekerjaan-pekerjaan lainnya. Pada dasarnya beton memiliki kuat tekan yang tinggi, tetapi memiliki kemampuan menahan gaya tarik dan gaya geser yang rendah. Hal ini dapat diperbaiki dengan menambahkan serat pada adukan beton. Penambahan serat untuk mengurangi sifat getas dan meningkatkan ketahanan retak awal (first crack) beton yang dapat ditempuh salah satunya dengan menambahkan seratkawatbendrat, dan serat karet ban bekas dalam campuran beton. Tujuan dari penelitian ini adalah untuk mengamati perilaku geser balok beton bertulang mutu tinggi (BMT) menggunakan serat kawat bendrat. Pada pengujian ini diuji dua balok berukuran 15 x 30 x 220 cm, dengan satu balok tanpa penambahan serat dan satu balok jenis serat sebanyak satu benda uji didesain mengalami gagal geser. Faktor air semen (FAS) 0,25 serat kawat bendrat dengan persentase 2% dari volume beton. Hasil penelitian menunjukkan balok mengalami gagal geser sesuai yang direncanakan. Hasil pengujian menunjukkan balok BMT dengan penambahan serat memliki beban maksimum 26,03 ton, retak pertama terjadi pada beban 5,10 ton. Balok BMT kawat bendrat beban maksimumnya 27,41 ton, retak pertama terjadi pada beban 5,90 ton. Untuk besarnya kapasitas gaya geser yang disumbangkan oleh tulangan geser konstann untuk semua balok yaitu 1,653 ton, sedangkan untuk kapasitas gaya geser yang disumbangkan oleh beton masing- masing untuk BMT tanpa penambahan serat Vc = 4,52 ton dan beton BMT serat kawat bendrat nilai Vc = 4,55 ton.
PERILAKU GESER PADA BALOK BETON BERTULANG MUTU TINGGI SETELAH RETAK YANG DIPERBAIKI DENGAN INJEKSI EPOXY Putri, Cut Rizka Ellysa; Aulia, Teuku Budi; Saidi, Taufiq
JURNAL TEKNIK SIPIL Vol 1, No 4 (2018): Volume 1 Special Issue, Nomor 4, Februari 2018
Publisher : Jurusan Teknik Sipil, Fakultas Teknik, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jts.v1i4.10040

Abstract

Abstract: Concrete as a building material has become the main choice in any building construction. Generally the craking by damage of structural components repaired by epoxy injection. This research was conducted to observe shear behavior analysis of high strength reinforced concrete beams after crack that repaired by epoxy injection system. In this research had 4 beams tested with measuring (15 x 30 x 220) cm for each epoxy age variation has a beam specimen which was 7 days (BBMTG E-7), 14 days (BBMTG E-14), 28 days (BBMTG E-28) and a beam specimen will be tested normally as comparison. Specimens were designed to have shear failure. Tensile reinforcement has 18,9 mm diameter as many as 4 pieces, tension reinforcement has 15,8 mm diameter as many as 2 pieces and shear reinforcement has 6 mm diameter with interval of 300 mm. High Strength Concrete obtained about 66,62MPa with W/C Ratio 0,25. The results showed that all beams had shear failure as planned. The result showed that repairing age concrete by epoxy injection system influence the shear of high strength concrete capacity. It is showed by the maximum load reached by BBMTG E-7 about 20,81 T and BBMTG E-14 about 19,6 T didnt reach a maximum load of BBMTG Normal about 26,03 T, moreover of BBMTG E-14 maximum load value is shorter than BBMTG E-7 maximum load value. Maximum load by BBMTG E-28 about 25,55 T which is close to BBMTG Normal maximum load value. Crack repaired do not reopen after retesting, instead new nearby the initial crack. Repair of high strength concrete by using epoxy injection system could be add a brittleness of high reinforce concrete. This would be caused by epoxy resin material which had the same quality with high strength concrete.Abstrak: Beton sebagai bahan bangunan telah menjadi pilihan utama dalam setiap pekerjaan konstruksi bangunan. Umumnya retak akibat kerusakan pada komponen struktur diperbaiki dengan injeksi epoxy. Penelitian ini dilakukan dengan tujuan untuk mengamati perilaku geser pada balok beton bertulang mutu tinggi yang telah diperbaiki dengan sistem injeksi epoxy. Pada penelitian ini diuji 4 buah balok berukuran (15 x 30 x 220) cm untuk masing-masing variasi umur epoxy sebanyak satu benda uji balok yaitu berumur 7 hari (BBMTG E-7), 14 hari (BBMTG E-14), 28 hari (BBMTG E-28) dan satu benda uji balok yang akan diuji secara normal sebagai pembanding. Benda uji didesain untuk mengalami gagal geser. Tulangan yang digunakan adalah besi ulir diameter 18,9 mm sebanyak 4 buah sebagai tulangan tarik dan besi ulir diameter 15,8 mm sebanyak 2 buah sebagai tulangan tekan. Sedangkan untuk tulangan geser digunakan besi polos diameter 6 mm dengan jarak 300 mm. Kuat tekan Beton Mutu Tinggi Geser yang diperoleh sebesar 66,62 MPa dengan FAS 0,25. Hasil penelitian menunjukan bahwa semua balok mengalami gagal geser sesuai yang direncanakan. Hasil penelitian meunjukkan umur perbaikan beton dengan sistem injeksi epoxy berpengaruh terhadap kapasitas geser beton mutu tinggi. Hal ini ditunjukkan dengan beban maksimum yang dicapai BBMTG E-7 sebesar 20,81 T dan BBMTG E-14 sebesar 19,60 T tidak mencapai nilai beban maksimum BBMTG Normal sebesar 26,03 T, bahkan nilai beban maksimum BBMTG E-14 lebih rendah daripada nilai beban maksimum BBMTG E-7. Nilai beban maksimum BBMTG E-28 sebesar 25,52 T yang paling mendekati dengan nilai beban maksimum BBMTG Normal. Retak yang diperbaiki tidak terbuka kembali setelah pengujian ulang, sebaliknya muncul retak baru disekitar retak yang lama. Perbaikan beton mutu tinggi dengan menggunakan sistem injeksi epoxy menambah sifat kegetasan beton mutu tinggi. Hal ini disebabkan karena material epoxy resin memiliki kekuatan yang hampir sama dengan beton mutu tinggi.
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