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Lukito Prasetyo
Universitas Muhammadiyah Malang
Agriculture, Biological Sciences & Forestry Civil Engineering, Building, Construction & Architecture Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Public Health Transportation

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PENGARUH PEMBERIAN JUMLAH DAN RASIO (L/d) SERAT BENDRAT TERHADAP SIFAT MEKANIK BETON Hafiz S.G, Ahmad; Rommel, Erwin; Prasetyo, Lukito
Media Teknik Sipil Vol 13, No 1 (2015): Februari
Publisher : Department of Civil Engineering, Faculty of Engineering, University of Muhammadiyah Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (546.58 KB) | DOI: 10.22219/jmts.v13i1.2538

Abstract

PENGARUH PEMBERIAN JUMLAH DAN RASIO (L/d) SERAT BENDRAT TERHADAP SIFAT MEKANIK BETONThe Influence of Steel Fiber Amount And L/D ratio to Mechanical Properties of ConcreteAhmad Hafiz S.G1, Erwin Rommel2, Lukito Prasetyo31 Staf Badan Perencana dan Pengembangan Kampus UMM2,3 Jurusan Teknik Sipil Universitas Muhammadiyah MalangAlamat korespondensi : email: erwin67pro@yahoo.com, ahafizsg16@gmail.com, prasetyo.lukito@gmail.comAbstractFiber concrete is the concrete which is mixed with fiber. The fiber was mixed into the concrete with the addition of fiber percentage. In this research, the fiber used was bendrat fiber. It had a diameter 0.8 mm which was cut be 1 cm, 2 cm, and 3 cm. Thus, the ratio (l/d) of fiber bendrat got 12,5 ; 25; and 37,5. Moreover, the amount of additional fiber used was 1 %, 2 % and 3 % from the amount of each cement ratio.In this research made 60 test concrete cylinder (150x300) mm in each of the 30 cylinder for testing compressive and 30 cylinders for testing tensile of the concrete. As for testing shear strength made 30 concrete specimen the shaped doubel-L (200x300x75) mm.The research results obtained that the wearing of a fiber ratio L/d = 12.5 will be able to enhance the tensile strength and shear stregth of concrete where fiber consumption bendrat as much as 3% obtained the greatest tensile strength 2,41 MPa or increased twice from the concrete without fibres, while for maximum shear strength reach 4,94 MPa with an increase of 54% compared to concrete without fibresKeywords: fiber concrete, steel fiber, tensile strength, shear strengthAbstrakBeton serat adalah bahan beton yang dicampur dengan serat dengan persentase tertentu. Dalam penelitian ini,serat yang digunakan adalah serat bendrat. Serat bendrat berdiamtere 0,8 mm dipotong-potong dengan panjang 1 cm, 2 cm dan 3 cm sehingga menghasilkan rasio L/d masing-masing 12,5; 25; dan 37,5. Sedangkan banyaknya serat yang ditambahkan terhadap volume berat yang digunakan masing-masing ; 1%, 2% dan 3%. Dalam penelitian dibuat 60 silinder diameter 150 mm dengan tinggi 300 mm masing-masing 30 silinder untuk pengujian tekan dan 30 silinder untuk pengujian tarik belah beton. Sedangkan untuk pengujian geser beton dibuat 30 specimen beton berbentuk doubel-L berukuran (200x300x75) mm. Hasil penelitian diperoleh bahwa pemakaian serat dengan rasio L/d=12,5 akan dapat meningkatkan kuat tarik dan kuat geser beton dimana pemakaian serat bendrat sebanyak 3% diperoleh kuat tarik terbesar 2,41 MPa atau meningkat 2 kali dari beton tanpa serat, sedangkan untuk kuat geser maksimal mencapai 4,94 MPa dengan kenaikan 54% dibandingkan dengan beton tanpa serat.Kata kunci : beton serat, serat bendrat, kuat tarik, kuat geser.
PENGGUNAAN SAMBUNGAN BAMBU ORI MENGGUNAKAN BAUT PADA KUDA-KUDA DENGA PENGISI MORTAR RESIN Haris, Muhammad; Prasetyo, Lukito
Media Teknik Sipil Vol 12, No 1 (2014): Februari
Publisher : Department of Civil Engineering, Faculty of Engineering, University of Muhammadiyah Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (213.393 KB) | DOI: 10.22219/jmts.v12i1.2044

Abstract

PENGGUNAAN SAMBUNGAN BAMBU ORI MENGGUNAKANBAUT PADA KUDA-KUDA DENGA PENGISI MORTAR RESINMuhammad Haris 1,Lukito Prasetyo.21&2 Jurusan Teknik Sipil Fakultas Teknik – Universitas Muhammadiyah MalangAlamat korespondensi : Jalan Raya Tlogomas 246 Malang 65144Email : olfurnitur@yahoo.com, prasetyo_lukito@yahoo.comABSTRACTThe use of bamboo as a construction material as well as the price is quite reasonablebecause less tensile strength to accept the burden and the press is quite high, but the use ofbamboo as a construction material has not maxima. This is due to the coupling stalks ofbamboo structure is usually done using conventional ropes, diarrhea and pegs, so thecoupling is less robust. This gives the impression that the power connection is very low, so lookfor an alternative type of connection is stronger, and therefore needed a study for the connectionstructure of bamboo is more solid, the effect of the use of bamboo ori instruction in connectionto the horses bolt with resin mortar filler.From the tests the maximum compressive strength values obtained material resin mortarspecimens at 32 MPa. From the test results on material specimens tap the value of the maximumcompressive robust to be used as filler material in connection ori bamboo horses. Testing theconnection ori bamboo horses given level of loading is: 2000kg, 3000kg, and 4070kg. Bambooeasel Smbungan ori show damage upon receiving load of 4070 kg with a deflection of 8.02mm.Damage to the specimen material is different, this is due to the percentage of the added materialand a different impact. While damage to the connection ori bamboo horses are different, this isdue to the function of each connection is different.Keywords: Bamboo, Resin Mortar, Compressive Strength, Deflection
Daktilitas dan Beban Lentur Dinding Panel Semen Eceng Gondok (Emen Wall) Prasetyo, Lukito
Jurnal Teknik Industri Vol 10, No 2 (2009): Agustus
Publisher : Department Industrial Engineering, University of Muhammadiyah Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (552.493 KB) | DOI: 10.22219/JTIUMM.Vol10.No2.136-141

Abstract

It is a follow-up research to discover water hyancinth wall panel building material characteristic (emen wall). Previous study found this material fulfilled the standard of PUBI 1982, SNI 03-6861.1-2002, and ASTM C423-90a in physically,  mechanically, acoustically, and burning endurance. Furthermore, the material will be evaluated through flexure test. Object test, which is a block board in 56X35X7 cm, will be burdened in interval of 100 kg until collapes. Then, deflection will be recorded based on the effective burden. This  examination will emerge average devition ductility factors in amount of 15.04 and average flexure ductility in amount of 17.10. Refers to Park and Pauly (1975) water hyacinth wall panel (emen wall) collapsing type is ductile.
Daktilitas Dinding Panel Semen Eceng Gondok (Emen Wall) Prasetyo, Lukito
Jurnal Teknik Industri Vol 10, No 2 (2009): Agustus
Publisher : Department Industrial Engineering, University of Muhammadiyah Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22219/JTIUMM.Vol10.No2.%p

Abstract

This study is a follow-up study to investigate the characteristics of building materials in the form of a wall panel hyacinth (Emen wall). From previous studies, physical properties, mechanical, acoustic and fuel resistance of this material meets the standards of building materials PUBI and ISO 1982 and ASTM C423 03-6861.1-2002-90A. Furthermore, this material will be evaluated by bending test. Beam specimens with dimensions of board 56x35x7cm, will be saddled with the interval until the collapse 100kg. Then note the deflection that occurs based on the work load. From this examination, obtained an average deviation of the ductility factor of 15.04 and the average curvature ductility is 17.10. the kind of collapse of a wall panel material hyacinth (Emen wall) is to be ductile.
Maximasi Kuat Tekan Beton Prasetyo, Lukito
Jurnal Teknik Industri Vol 11, No 1 (2010): Februari
Publisher : Department Industrial Engineering, University of Muhammadiyah Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (497.426 KB) | DOI: 10.22219/JTIUMM.Vol11.No1.42-49

Abstract

Concrete mixing obtained from the fine aggregate and coarse aggregate is sand, stonebroken by adding sufficient adhesive cement and water as supporting material for purposesof chemical reactions during the process of concrete hardening and treatment progress, andmay also be additional material that could serve to strengthen or accelerate the development ofconcrete strength. Therefore, in order to obtain concrete with a light weight, one of which is toreplace the coarse aggregate is commonly used with natural stone aggregate is an alternativethat has a lighter weight but has the major attributes that do not differ greatly. The methodused in this study by testing it against a strong press, elastic modulus, split tensile strength,density, porosity. Increased modulus of elasticity of the variation in aggregate gradation gradationsI to III of variation 14.03%. On a good variety of aggregate inter-aggregate contact areawill be smaller so that the number of pores (porosity) of concrete produced would be smaller.With a small contact area porosity and the amount of cement needed in a similar treatment willbe less. The more small porosity variations in the use of aggregate gradation will memyebabkanconcrete gravity value greater. Small porosity values which will make the concrete moredense so that the stronger the resulting press will be great. In the strong increase in press andconcrete, will be followed by a rise in value of split tensile strength and modulus of elasticityof concrete.
Daktilitas dan Beban Lentur Dinding Panel Semen Eceng Gondok (Emen Wall) Prasetyo, Lukito
Jurnal Teknik Industri Vol 10, No 2 (2009): Agustus
Publisher : Department Industrial Engineering, University of Muhammadiyah Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22219/JTIUMM.Vol10.No2.%p

Abstract

It is a follow-up research to discover water hyancinth wall panel building material characteristic (emen wall). Previous study found this material fulfilled the standard of PUBI 1982, SNI 03-6861.1-2002, and ASTM C423-90a in physically, mechanically, acoustically, and burning endurance. Furthermore, the material will be evaluated through flexure test. Object test, which is a block board in 56X35X7 cm, will be burdened in interval of 100 kg until collapes. Then, deflection will be recorded based on the effective burden. This examination will emerge average devition ductility factors in amount of 15.04 and average flexure ductility in amount of 17.10. Refers to Park and Pauly (1975) water hyacinth wall panel (emen wall) collapsing type is ductile.
PEMANFAATAN TEKNOLOGI INFORMASI UNTUK PENJUALAN PRODUK HASIL PERTANIAN DI KABUPATEN TULUNGAGUNG Maskur, Maskur; Kholimi, Ali Sofyan; Prasetyo, Lukito
Jurnal Dedikasi Vol 16 (2019): Mei
Publisher : Direktorat Penelitian dan Pengabdian Kepada Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1922.27 KB) | DOI: 10.22219/dedikasi.v16i1.10737

Abstract

Kabupaten Tulungagung yang terletak 154 km barat daya Surabaya merupakan sebuah kabupaten yang mayoritas masyarakatnya bekerja sebagai petani, sehingga hasil pertanian merupakan sumber penghasilan utamanya. Hasil pertanian yang banyak dihasilkan meliputi beras organik, jagung,beras anorganik, sayuran, buah-buahan dll. Beberapa kelompok Petani menghasilkan beberapa jenis hasil pertanian yang secara kualitas bagus tapi karena proses penjualan melalui perantara maka harga jual relative lebih rendah. Dengan memanfaatkan teknologi informasi melalui model jejaring komunitas dan penjualan melalui E-Commerce diharapkan penjual dan pembeli maupun akan bisa langsung transaksi jual beli sehingga harga jual menjadi lebih baik dan pembeli mendapatkan hasil pertanian yang bagus karena langsung mendapatkan barang dari petani, petani juga bisa langsung menjual ke pasar dan bisa mengetahu harga pasar. Kelompok Nature farm tulungagung terletak di desa sumberjo kulon kecamatan ngunut dan kampung tani tulungagung terletak di desa karanganom kecamatan kauman kabupaten Tulungagung merupakan kelompok yang menjual hasil pertanian langsung kepada pembeli maupun pasar dengan tujuan agar harga jual meningkat, Permasalahan yang dihadapi Mitra adalah media penjualan dan komunitas kelompok tani masih menggunakan model tradisional dengan cara pembeli langsung datang ke petani maupun pesan melalui saluran telpon. Untuk meningkatkan hasil penjualan dan memasarkan produk hasil pertanian dibutuhkan terobosan dalam bidang teknologi khususnya E-Commerce berbasis komunitas kelompok tani. Perkembangan teknologi saat ini menuntut sumber daya manusia untuk dapat mengikuti pemanfaatan teknologi. Salah satu perkembangan teknologi yang cukup banyak dimanfaatkan adalah sistem informasi / website sebagai media penjualan dan sosial media. Tujuan dari Program Pengabdian Masyarakat Internal ini adalah untuk meningkatkan hasil penjualan hasil pertanian dengan memanfaatkan media penjualan E-Commerce berbasis komunitas kelompok tani, selain bisa menjual produk hasil pertanian, update harga hasil pertanian terbaru dan bisa digunakan sharing informasi seputar pertanian karena dapat diakses dari manapun berada. Dengan adanya media online E-Commerce berbasis komunitas masyarakat atau dalam hal ini pembeli yang menginginkan berbelanja kebutuhan rumah tangga akan mendapatkan barang yang berkualitas baik dan harga bersaing. Sistem Media online E-Commerce berbasis komunitas diharapkan memberikan pengaruh positif untuk meningkatkan pendapatan petani dan meningkatkan keuntungan/profit kelompok petani dan untuk pembeli mendapatkan harga yang lebih murah karena proses pembelian tidak melalui perantara.
PENGGUNAAN SAMBUNGAN BAMBU ORI MENGGUNAKAN BAUT PADA KUDA-KUDA DENGA PENGISI MORTAR RESIN Muhammad Haris; Lukito Prasetyo
Media Teknik Sipil Vol. 12 No. 1 (2014): Februari
Publisher : Department of Civil Engineering, Faculty of Engineering, University of Muhammadiyah Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22219/jmts.v12i1.2044

Abstract

PENGGUNAAN SAMBUNGAN BAMBU ORI MENGGUNAKANBAUT PADA KUDA-KUDA DENGA PENGISI MORTAR RESINMuhammad Haris 1,Lukito Prasetyo.21&2 Jurusan Teknik Sipil Fakultas Teknik – Universitas Muhammadiyah MalangAlamat korespondensi : Jalan Raya Tlogomas 246 Malang 65144Email : olfurnitur@yahoo.com, prasetyo_lukito@yahoo.comABSTRACTThe use of bamboo as a construction material as well as the price is quite reasonablebecause less tensile strength to accept the burden and the press is quite high, but the use ofbamboo as a construction material has not maxima. This is due to the coupling stalks ofbamboo structure is usually done using conventional ropes, diarrhea and pegs, so thecoupling is less robust. This gives the impression that the power connection is very low, so lookfor an alternative type of connection is stronger, and therefore needed a study for the connectionstructure of bamboo is more solid, the effect of the use of bamboo ori instruction in connectionto the horses bolt with resin mortar filler.From the tests the maximum compressive strength values obtained material resin mortarspecimens at 32 MPa. From the test results on material specimens tap the value of the maximumcompressive robust to be used as filler material in connection ori bamboo horses. Testing theconnection ori bamboo horses given level of loading is: 2000kg, 3000kg, and 4070kg. Bambooeasel Smbungan ori show damage upon receiving load of 4070 kg with a deflection of 8.02mm.Damage to the specimen material is different, this is due to the percentage of the added materialand a different impact. While damage to the connection ori bamboo horses are different, this isdue to the function of each connection is different.Keywords: Bamboo, Resin Mortar, Compressive Strength, Deflection
PENGARUH PEMBERIAN JUMLAH DAN RASIO (L/d) SERAT BENDRAT TERHADAP SIFAT MEKANIK BETON Ahmad Hafiz S.G; Erwin Rommel; Lukito Prasetyo
Media Teknik Sipil Vol. 13 No. 1 (2015): Februari
Publisher : Department of Civil Engineering, Faculty of Engineering, University of Muhammadiyah Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22219/jmts.v13i1.2538

Abstract

PENGARUH PEMBERIAN JUMLAH DAN RASIO (L/d) SERAT BENDRAT TERHADAP SIFAT MEKANIK BETONThe Influence of Steel Fiber Amount And L/D ratio to Mechanical Properties of ConcreteAhmad Hafiz S.G1, Erwin Rommel2, Lukito Prasetyo31 Staf Badan Perencana dan Pengembangan Kampus UMM2,3 Jurusan Teknik Sipil Universitas Muhammadiyah MalangAlamat korespondensi : email: erwin67pro@yahoo.com, ahafizsg16@gmail.com, prasetyo.lukito@gmail.comAbstractFiber concrete is the concrete which is mixed with fiber. The fiber was mixed into the concrete with the addition of fiber percentage. In this research, the fiber used was bendrat fiber. It had a diameter 0.8 mm which was cut be 1 cm, 2 cm, and 3 cm. Thus, the ratio (l/d) of fiber bendrat got 12,5 ; 25; and 37,5. Moreover, the amount of additional fiber used was 1 %, 2 % and 3 % from the amount of each cement ratio.In this research made 60 test concrete cylinder (150x300) mm in each of the 30 cylinder for testing compressive and 30 cylinders for testing tensile of the concrete. As for testing shear strength made 30 concrete specimen the shaped doubel-L (200x300x75) mm.The research results obtained that the wearing of a fiber ratio L/d = 12.5 will be able to enhance the tensile strength and shear stregth of concrete where fiber consumption bendrat as much as 3% obtained the greatest tensile strength 2,41 MPa or increased twice from the concrete without fibres, while for maximum shear strength reach 4,94 MPa with an increase of 54% compared to concrete without fibresKeywords: fiber concrete, steel fiber, tensile strength, shear strengthAbstrakBeton serat adalah bahan beton yang dicampur dengan serat dengan persentase tertentu. Dalam penelitian ini,serat yang digunakan adalah serat bendrat. Serat bendrat berdiamtere 0,8 mm dipotong-potong dengan panjang 1 cm, 2 cm dan 3 cm sehingga menghasilkan rasio L/d masing-masing 12,5; 25; dan 37,5. Sedangkan banyaknya serat yang ditambahkan terhadap volume berat yang digunakan masing-masing ; 1%, 2% dan 3%. Dalam penelitian dibuat 60 silinder diameter 150 mm dengan tinggi 300 mm masing-masing 30 silinder untuk pengujian tekan dan 30 silinder untuk pengujian tarik belah beton. Sedangkan untuk pengujian geser beton dibuat 30 specimen beton berbentuk doubel-L berukuran (200x300x75) mm. Hasil penelitian diperoleh bahwa pemakaian serat dengan rasio L/d=12,5 akan dapat meningkatkan kuat tarik dan kuat geser beton dimana pemakaian serat bendrat sebanyak 3% diperoleh kuat tarik terbesar 2,41 MPa atau meningkat 2 kali dari beton tanpa serat, sedangkan untuk kuat geser maksimal mencapai 4,94 MPa dengan kenaikan 54% dibandingkan dengan beton tanpa serat.Kata kunci : beton serat, serat bendrat, kuat tarik, kuat geser.
Kuat Lentur Dinding Panel Beton Busa dengan Perkuatan Wiremesh Erwin Rommel; Yunan Rusdianto; Rofikatul Karimah; Lukito Prasetyo; Anel Prasyas
Media Teknik Sipil Vol. 18 No. 1 (2020): Februari
Publisher : Department of Civil Engineering, Faculty of Engineering, University of Muhammadiyah Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22219/jmts.v18i1.11099

Abstract

PPermasalahan energi dan lingkungan menjadi issue utama yang terjadi di negara-negara maju dan negara yang sedang berkembang tidak terkecuali di Indonesia. Kondisi geografis negara Indonesia yang terletak pada iklim tropis dan sebagian besar dilewati wilayah gempa, maka diperlukan desain bangunan yang dirancang selain tahan gempa juga harus memiliki konsep bangunan hemat energi. Bangunan tahan gempa dan hemat energi adalah impian bangunan dimasa mendatang, dimana dibutuhkan bangunan yang ringan, sifat insulasi yang baik, tata ruang optimal, serta bangunan yang memanfaatkan energi pada lingkungan sekitar. Dinding panel beton busa menjadi salah satu alternatif selain bobotnya ringan, pemasangannya cepat dan dapat diproduksi massal dipabrik. Tujuan penelitian ini adalah untuk mengetahui sifat mekanik dari dinding panel beton busa dengan memakai perkuatan wire mesh. Dinding panel berukuran 900 mm x 300 mm x 80 mm mm dibuat dengan campuran semen dan pasir 1:2,75 faktor air semen 0,425 dan 2% foam agent sebanyak 15 unit. Setiap 3 benda uji dibuat dengan dinding panel tanpa perkuatan (PD), dinding panel diberi styrofoam pada bagian tengah (PDS), dinding panel dengan serat ijuk (PDF), dinding panel dengan wiremesh 4 mm (PDM) dan dinding panel dengan wiremesh 4 mm dan styrofoam (PDMS). Pengujian lentur dilakukan dengan metode four-point-bending dengan mengamati beban retak, beban ultimit, displacemen dan pola retak yang terjadi. Hasil pengujian diperoleh bahwa kuat lentur dinding panel yang memakai wiremesh meningkat hingga enam kalinya dan kekakuan lenturnya meningkat dua kali dibandingkan dengan panel dinding tanpa wiremesh. Pola retak yang terjadi pada dinding panel dengan wiremesh menghasilkan penyebaran retak yang lebih merata dengan keruntuhan lentur bersifat daktail, sedangkan dinding panel tanpa perkuatan menunjukkan keruntuhan lentur bersifat getas.
Co-Authors Ahmad Hafiz S.G Ahmad Hafiz S.G, Ahmad Ali Sofyan Kholimi Anel Prasyas Erwin Rommel Faris Rizal Andardi Maskur Maskur Maskur Maskur Muhammad Haris MUHAMMAD HARIS Rofikatul Karimah Yunan Rusdianto