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All Journal PILAR INOVTEK POLBENG Borneo Engineering: Jurnal Teknik Sipil Journal of Green Science and Technology Journal of Infrastructure and Civil Engineering Jurnal Inovtek Seri Teknik Sipil dan Aplikasi (TekLA) TANJAK : Jurnal Pengabdian Kepada Masyarakat Journal of Green Science and Technology
Zulkarnain Zulkarnain
Politeknik Negeri Bengkalis
Agriculture, Biological Sciences & Forestry Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Transportation

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PENGARUH SUDUT PAHAT PADA PENGGURDIAN KOMPOSIT SERAT DAUN NANAS / TERMOPLASTIK PADA PEMBENTUKAN DELAMINASI Zulkarnain Zulkarnain; Ismet Hari Mulyadi; Jupri Jupri; Siswandi B
Jurnal Inovtek Polbeng Vol 13, No 1 (2023): Inovtek VOL. 13 NO 1 2023
Publisher : POLITEKNIK NEGERI BENGKALIS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35314/ip.v13i1.3325

Abstract

This study aims to determine the effect of the Gurdi tool angle on delamination in composite laminates in the formation of delaminations. The spacing of the selected reinforcing fibers was 2.4 and 6 mm in a composite laminate of ethylene vinyl acetate (EVA) polymer matrix with reinforcing fibers from pineapple leaves. The method used in composite fabrication is hand lay-up, namely by direct casting on three layers of fiber that has been woven and tied to the sides of the mold. For cutting speed, Vf 72 mm / min, using a chisel with a diameter of 8 mm with a tool angle of 70o and 118o. Delamination was determined using the Feda method. The delamination sections were observed using a digital microscope and then processed using AutoCAD to measure Dmax and Ad. The delamination ratio in the top hole for the tool diameter of 8mm with a 70° angle at the variation of the distance of 2 mm, 4 mm and 6 mm were 1.268, 1.224 and 1.192 for the bottom hole were 1.078, 1.042 and 1.029, respectively. Meanwhile, the ratio of delamination in the upper hole for a tool diameter of 8mm with an angle of 118° at a distance variation of 2mm, 4mm and 6mm were 1.194, 1.194, 1.158 for the bottom hole, respectively, 1.046, 1.042 and 1.038.
PENGARUH SUDUT PAHAT PADA PENGGURDIAN KOMPOSIT SERAT DAUN NANAS / TERMOPLASTIK PADA PEMBENTUKAN DELAMINASI Zulkarnain Zulkarnain; Ismet Hari Mulyadi; Jupri Jupri; Siswandi B
INOVTEK POLBENG Vol 13, No 1 (2023): Inovtek VOL. 13 NO 1 2023
Publisher : POLITEKNIK NEGERI BENGKALIS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35314/ip.v13i1.3325

Abstract

This study aims to determine the effect of the Gurdi tool angle on delamination in composite laminates in the formation of delaminations. The spacing of the selected reinforcing fibers was 2.4 and 6 mm in a composite laminate of ethylene vinyl acetate (EVA) polymer matrix with reinforcing fibers from pineapple leaves. The method used in composite fabrication is hand lay-up, namely by direct casting on three layers of fiber that has been woven and tied to the sides of the mold. For cutting speed, Vf 72 mm / min, using a chisel with a diameter of 8 mm with a tool angle of 70o and 118o. Delamination was determined using the Feda method. The delamination sections were observed using a digital microscope and then processed using AutoCAD to measure Dmax and Ad. The delamination ratio in the top hole for the tool diameter of 8mm with a 70° angle at the variation of the distance of 2 mm, 4 mm and 6 mm were 1.268, 1.224 and 1.192 for the bottom hole were 1.078, 1.042 and 1.029, respectively. Meanwhile, the ratio of delamination in the upper hole for a tool diameter of 8mm with an angle of 118° at a distance variation of 2mm, 4mm and 6mm were 1.194, 1.194, 1.158 for the bottom hole, respectively, 1.046, 1.042 and 1.038.
Behaviour Of Bamboo Reinforcement In Flexural Strength Of Sea Water Concrete Slab Alamsyah Alamsyah; Hery Waluyo; Muhammad Zulkarnain; Faisal Ananda; Zev Aljauhari
Journal of Green Science and Technology Vol 3 No 2 (2019): JOURNAL OF GREEN SCIENCE AND TECHNOLOGY
Publisher : Faculty of Engineering, Universitas Swadaya Gunung Jati

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33603/jgst.v3i2.2385

Abstract

World Resources Institute data shows that there will be a fresh water crisis in 2040 including Indonesia. Responding to the above, many studies have been carried out using seawater, one of which is on concrete. Several studies have shown that seawater does not reduce the quality of concrete, but provides a corrosion effect on reinforcement.In this study, sea water concrete slabs have been made using bamboo as a reinforcement that will not corrode due to seawater. For concrete mix design refers to SNI SNI 03-2834-2000 and for slab flexural strength refers to 03-2847-2002. Slab specimens with sea water concrete that have been made consist of Slab concrete of steel reinforcement (SCS), Slab concrete of bamboo reinforcement V type notch (SCBV)  and Slab concrete of bamboo reinforcement  U type notch (SCBU).The result of the compressive strength of sea water concrete can reach the compressive strength of the plan. Tensile strength of bamboo reaches 223.5MPaand approaching the tensile strength of steel reinforcement. The maximum load of SCBV and SCBU were decrease than theoretical analysis of0.14% and 21.51% respectively. Otherwise, the maximum load of SCS greater than theoretical analysis with a difference of 14.67%. The flexural strength of the concrete slab was not affected by sea water as in compressive strength of cylinder.Keywords: Bamboo reinforcement slab, Flexural strength, Seawater concrete
Desain Gazebo Ramah Lingkungan untuk Mendukung Objek Wisata Pantai Desa Pambang Pesisir Kecamatan Bantan Zulkarnain; Dearni, Roma; Enda, Dedi
TANJAK : Jurnal Pengabdian Kepada Masyarakat Vol 6 No 1 (2025): TANJAK : Jurnal Pengabdian Kepada Masyarakat
Publisher : P3M Politeknik Negeri Bengkalis

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35314/6wqgjj87

Abstract

Pantai Desa Pambang Pesisir, Kecamatan Bantan, merupakan salah satu potensi wisata alam di Kabupaten Bengkalis. Keindahan alam pantai ini memiliki daya tarik yang besar, tetapi belum didukung dengan fasilitas yang memadai untuk meningkatkan kenyamanan wisatawan. Melalui program pengabdian yang dilakukan oleh Tim dari Politeknik Negeri bengkalis khususnya Jurusan Teknik Sipil, bertujuan untuk merancang dan membangun gazebo ramah lingkungan yang sesuai dengan karakteristik dan kebutuhan kawasan wisata Pantai Desa Pambang Pesisir. Pelaksanaan kegiatan pengabdian kepada masyarakat melalui proses Identifikasi dan Analisis Lokasi, Perancangan Desain, Pelaksanaan Pembangunan dan Monitoring serta Evaluasi, Hasil desain Gazebo yang dibangun memiliki struktur berbahan kayu sebagai rangka utama, atap asbes, dan lantai dari kayu. Struktur ini tidak hanya menyatu dengan lingkungan pantai, tetapi juga tahan terhadap cuaca pesisir. Realisasi dari gazebo ramah lingkungan ini mendukung pengembangan objek wisata pantai Desa Pambang Pesisir. Gazebo ini tidak hanya memberikan manfaat praktis sebagai fasilitas wisata, tetapi juga berkontribusi pada pelestarian lingkungan dan pemberdayaan masyarakat setempat.
Meningkatkan Kualitas Lingkungan Kerja Dan Pelayanan Publik Melalui Desain Kantor Desa Yang Inovatif Di Desa Air Putih Kecamatan Bengkalis Junaidi, Junaidi; Zulkarnain, Zulkarnain
TANJAK : Jurnal Pengabdian Kepada Masyarakat Vol 5 No 1 (2024): TANJAK : Jurnal Pengabdian Kepada Masyarakat
Publisher : P3M Politeknik Negeri Bengkalis

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35314/1p296w26

Abstract

Permasalahan yang di alami oleh Mitra adalah  Pemerintah Desa Air Putih ingin membangun Gedung Kantor Desa Air Putih dengan konsep Melayu dan dilengkapi dengan Balai atau Ruang Rapat yang difungsikan untuk kegiatan yang sifatnya Seminar, Workshop dan Pelatihan yang dilakukan oleh Pihak Desa. Desa Air Putih saat ini memiliki Kantor Pemerintahan yang dibangun oleh Pemerintah Kabupaten Bengkalis namun Kepemilikan Tanah adalah Hak Pakai sehingga Kepala Desa Bapak Syamsuddin memprakarsai ide Pembangunan Gedung Kantor Desa yang nantinya akan di bangun di Tanah Lahan Milik Desa yakni di Bangunan Kantor Desa Air Putih lama dengan Ukuran Tanah 40 m x 17 m. Dengan permasalahan itu maka Tim Pengabdian melakukan Perencanaan Gedung Kantor Desa Air Putih dengan dua Lantai  dimana Lantai dasar difungsikan untuk Kegiatan Pemerintahan Desa (Ruang ADministrasi, Ruang Kepala Desa, Sekretaris Kepala Desa, Ruang Keuangan, Ruang Sekretariat, Ruang Kepala Dusun, Ruang Publik dan Front Office) dan di Lantai atasnya adalah Ruang Pertemuan yang hanya dibuat dengan dinding setengah sehingga menyerupai balai kerapatan dan suasananya terbuka, Ruang Sholat dan Toilet. Biaya yang dibuuthkan untuk Pembangunan Gedung Kantor Desa yang dilengkapi dengan Balai kerapatan untuk kegiatan Rapat dan Pelatihan. Dengan biaya sebesar Rp. 981.000.000; Luaran kegiatan ini adalah berupa Gambar Desain, Rencana Anggaran Biaya (RAB) dan Pajangan Desain Gedung Kantor Desa, dipublikasikan pada Media Online dan Didaftarkan HAKI.
The Effect of Stabilization Spent Bleaching Earth using Seashell Towards Compressive Strength and Water Blasting Damages of Concrete Muhammad Gala Garcya; Faisal Ananda; Juli Ardita Pribadi R; Zulkarnain; Alamsyah; Armada
Journal of Infrastructure and Civil Engineering Vol. 6 No. 1 (2026)
Publisher : Program Studi Teknik Sipil Sekolah Tinggi Teknologi Pekanbaru

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35583/jice.v6i1.161

Abstract

Palm Crude Oil (CPO) production generates substantial waste, including Spent Bleaching Earth (SBE), which is difficult to recycle. This research explores the stabilization of SBE using seashells for use in concrete mixtures. The goal is to enhance concrete’s durability by utilizing the calcium content in stabilized SBE. In this study, we tested concrete with a design strength of 30 MPa. The tests included compressive strength on 150x300 mm cylinders, flexural strength on 600x150x150 mm beams after 28 days of curing, and water blasting resistance using two methods. The water blasting test assessed the concrete’s resistance to water pressure on 500 x 350 x 50 mm samples over three consecutive days. The results showed that concrete with a 7.5% SBE variation achieved a compressive strength of 42.06 MPa, higher than the design strength. Flexural strength increased by 4.67% with a 10% variation in SBE. However, the water blasting tests revealed that both concrete variations exhibited greater damage than normal concrete, indicating that while SBE improves compressive and flexural strength, it may reduce the concrete’s water resistance.
Co-Authors Alamsyah Alamsyah Alamsyah Andika Utami Armada Bazar Asmawi Enda, Dedi Faisal Ananda Faisal Ananda Garcya, Muhammad Gala Herlinawati Herlinawati Herlinawati Herlinawati Hery Waluyo Ismet Hari Mulyadi Jauhari, Zev Al Juli Ardita Pribadi R Junaidi Junaidi Jupri Marhadi Sastra Muhammad Ikhsan Muhammad Rizki Nadjadji Anwar Nadjadji Anwar Nice Otofiani Oni Febriani Roma Dearni Siswandi B Siswandi B Siswandi B Suhendra Suhendra