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Oktaviani, Tetra
Politeknik Negeri Medan
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KOEFISIEN PERMEABILITAS CAMPURAN ASPAL PORUS AKIBAT PENAMBAHAN GILSONITE Tetra Oktaviani
Jurnal Teknik Sipil Vol 2, No 01 (2021): Juni 2021
Publisher : Universitas Teknokrat Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33365/sendi.v2i01.787

Abstract

Aspal porus merupakan campuran aspal dengan rongga yang lebih banyak dibandingkan dengan campuran aspal lainnya dari suatu lapis permukaan struktur perkerasan lentur umumnya. Campuran aspal porus memiliki beberapa kelebihan, yaitu rongga yang terdapat pada campuran aspal porus berfungsi untuk membantu mengalirkan air secara vertikal dan horizontal, memberikan ketahanan terhadap selip yang lebih besar. Selain kelebihan tersebut, kekurangan pada campuran aspal porus adalah rendahnya nilai stabilitas yang diakibatkan oleh banyaknya rongga pada campuran aspal porus. Oleh karena campuran aspal porus memiliki banyak keuntungan, maka untuk meningkatkan nilai stabilitas campuran aspal porus, salah satu cara yang digunakan adalah dengan menambahkan gilsonite. Metode yang digunakan dalam penelitian ini adalah metode eksperimental dengan skala labortorium. Pengujian yang dilakukan dalam penelitian ini berupa pengujian falling head. Campuran aspal porus pada penelitian ini menggunakan 2 gradasi yaitu gradasi Jepang dan Australia. Adapun kadar aspal yang digunakan sebesar 4,5%, 5,0%, 5,5%, dan 6,0%, sedangkan kadar gilsonite yang digunakan adalah kadar gilsonite maksimum sebesar 5,5% dan 0% sebagai control. Hasil penelitian memperlihatkan bahwa kadar aspal dan kadar gilsonite optimum diperoleh sebesar 5,5% terjadi penurunan nilai koefisien permeabilitas pada campuran aspal porus modifikasi dalam kisaran 0,1 cm/detik sampai dengan 0,3 cm/ detik. 
Geometric Design for Damar Wulan Road Deli Serdang Regency Tetra Oktaviani; Falwan Rizky Gunawan
International Journal of Research in Vocational Studies (IJRVOCAS) Vol. 2 No. 4 (2023): IJRVOCAS - Special Issues - International Conference on Science, Technology and
Publisher : Yayasan Ghalih Pelopor Pendidikan (Ghalih Foundation)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53893/ijrvocas.v2i4.174

Abstract

Damar Wulan Road is one of the 3.5 km road sections located in Sampali Village, Percut Sei Tuan District, Deli Serdang Regency. This road has the potential to be an access to a strategic location, but there are still few people who use Damar Wulan Road as a mobilization route because most of the road is still subgrade. Therefore, it is necessary to design the Damar Wulan Road so that it can be used by the community. This study aims to design vertical alignment for Damar Wulan Road. The method used for vertical alignment design is TPGJAK 1997. The calculation on the vertical alignment obtained results in the form of 16 PVI arches, which are 8 convex vertical curves and 8 concave vertical curves.
Teknologi Penyediaan Air Irigasi Melalui Pemanfaatan Air Tanah Dangkal Di Desa Sambirejo Kecamatan Binjai Kabupaten Langkat Provinsi Sumatera Utara Mizanuddin Sitompul; Tetra Oktaviani; Hadianti Muhdinar Pasaribu; Wirdatun Nafiah Putri
Jurnal Pengabdian dan Pemberdayaan Masyarakat Vol. 1 No. 1 (2023): Edisi Juni
Publisher : Jurusan Teknik Sipil, Politeknik Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51510/komposit.v1i1.1009

Abstract

Air merupakan salah satu unsur yang sangat penting pada sektor pertanian. Ketersediaan air harus terjamin agar tanaman dapat tumbuh dengan baik sepanjang tahun. Hal tersebutlah yang melatarbelakangi tim pelaksana untuk mengaplikasikan ilmunya kepada petani yang masih memanfaatkan irigasi tadah hujan seperti di Desa Sambirejo, Kecamatan Binjai, Kabupaten Langkat, Provinsi Sumatera Utara. Hal utama dan prioritas yang menjadi permasalahan pada Desa Sambirejo khususnya Kelompok Tani Karya Tani yang menjadi mitra pengabdian adalah kurang bahkan tidak tersedianya air pada saat persiapan/pembajakan lahan, persemaian, dan pada masa tanam. Selain itu, hanya ada 1 saluran yang melintasi areal persawahan. Namun air dari saluran tersebut tidak bisa mengalir ke areal persawahan kelompok tani karena elevasi muka airnya yang berada di bawah sawah. Tidak tersedianya air baik saat persiapan lahan, persemaian, dan masa tanam dapat mengurangi produktivitas petani. Solusi yang ditawarkan untuk menyediakan air irigasi ini berupa pemanfaatan air tanah dangkal melalui pembangunan irigasi air tanah dangkal. Metode pemanfaatan air tanah dangkal dengan bantuan mesin pompa air yang mengalirkan air tanah yang sudah di bor sebelumnya untuk kemudian dialirkan langsung maupun melalui selang buang ke areal pertanian.
Functional Performance of Modified Porous Asphalt Mixtures with Gilsonite Additive Tetra Oktaviani; Dina Tri Septiningtiyas; Wirdatun Nafiah Putri
Jurnal Inotera Vol. 9 No. 1 (2024): January-June 2024
Publisher : LPPM Politeknik Aceh Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31572/inotera.Vol9.Iss1.2024.ID342

Abstract

Porous asphalt is an asphalt mixture with more voids than other asphalt mixtures of a surface layer of a typical flexible pavement structure. Porous asphalt mixtures have several advantages, namely the voids contained in the porous asphalt mixture function to help drain water vertically and horizontally, providing greater skid resistance. In addition to these advantages, the disadvantage of porous asphalt mixtures is the low stability value caused by the large number of voids in the porous asphalt mixture. Because porous asphalt mixtures have many advantages, to increase the stability value of porous asphalt mixtures, one of the methods used is by adding gilsonite. The method used in this research is an experimental method with a labortorium scale. The tests carried out in this study were in the form of skid resistance tests. The porous asphalt mixture in this study used 2 gradations, namely Japanese and Australian gradations.The test specimens used in this mixture are mixtures with optimum asphalt content and 0% gilsonite content. While the modified porous asphalt pavement is a mixture of gilsonite and pen 60/70 asphalt with gilsonite content and optimum asphalt content of 5.5% each. The results showed that the functional performance improvement of the modified asphalt pavement for Japanese and Australian gradations was 14.5% and 2.7%, respectively. Thus, there is an increase in the magnitude of skid resistance values from 55 BPN to 63 BPN and from 75 BPN to 77 BPN or by 8.0 BPN and 2.0 BPN for Japanese and Australian gradations, respectively. This increase in skid resistance value will provide a better level of safety for vehicle users.
Pemanfaatan Sistem Informasi Geografis terhadap kerusakan jalan di Kecamatan Medan Selayang Dina Tri Septiningtiyas; Citra Utami; Tetra Oktaviani; Rifka Ananda
Jurnal Inotera Vol. 9 No. 1 (2024): January-June 2024
Publisher : LPPM Politeknik Aceh Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31572/inotera.Vol9.Iss1.2024.ID344

Abstract

Medan Selayang District is one of the sub-districts with the most populous activity center in Medan City where there is transportation infrastructure in the form of highways with various conditions, both roads with stable and unstable conditions so that they are vulnerable to roads damage. This study aims to map the level of potential road damage and analyze the level of potential road damage in Medan Selayang District using the Geographic Information System (GIS) application. The method used in this study is a data collection and data processing method using Quantum GIS. Data processing methods are in the form of georeferencing and digitization, parameter appreciation and overlap or overlay. The parameters used include slope, rainfall, soil type, traffic volume and the availability of drainage channels. The result of this study is a map of the potential level of roads damage in Medan Selayang sub-district with 3 categories of levels namely low damage along 4,714 Km (20.01%), moderate damage along 13,922 Km (59.12%) and high damage along 4,916 Km (20.87%). The distribution of potential road damage levels in Medan Selayang sub-district spreads for each category of damage levels
CAPACITY ANALYSIS SECONDARY ROAD BASED ON CONNECTION OF TRAFFIC FLOW, SPEED AND DENSITY ON MEDAN CITY Wirdatun Nafiah Putri; Muhammad Mabrur; Tetra Oktaviani
Jurnal Media Teknik Sipil Samudra Vol 2 No 2 (2021)
Publisher : Program Studi Teknik Sipil, Fakultas Teknik. Universitas Samudra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55377/jmtss.v2i2.4126

Abstract

Transportation infrastructure planning that was not carried out properly causes road disruption in urban areas. Jl. Balaikota, Jl. Putri Hijau, Jl. Yos Sudarso and Jl. Willem Iskandar are the network secondary road in the city of Medan, which is a diversion route for the main traffic flow transportation from and to the city to reduce primary arterial road burdens and traffic density in the city. Indicators to road traffic performance in order to understanding traffic behavior are vehicle speed, density, and traffic volume. Direct observation surveys were conducted to collect speed and traffic volume datas. The density value is obtained from the relationship between the two parameters. The Greenshield, Greenberg and Underwood result model are the maximum volume, density and speed that can be accommodated by the road segment are obtained, then linear regression analysis is carried out to select the appropriate model for the road conditions. Models for Jl. City Hall and Jl. Yos Sudarso Section 2 is Greenshield Model, Jl. Putri Hijau, Jalan Yos Sudarso Section 1 and Jl. Willem Iskandar is a Greenberg Model. Jalan Balaikota has a maximum traffic volume of 3808.40 pcu/hour, a density of 248.53 pcu/km, Jl. Putri Hijau 5107.40 pcu/hour with a density of 312.62 pcu/km, Jl. Yos Sudarso Section 1 of 1627 pcu/hour with a density of 109.17 pcu/km, Jl. Willem Iskandar Section 1 of 2897.80 pcu/hour with a density of 146.84 pcu/km and Jl. Willem Iskandar Section 2 1304.60 pcu/hour with a density of 76.28 pcu/km
Effect of Compressive Strength of Red Brick with the Addition of Carrageenan Nofriadi; Dary, Rhini Wulan; Oktaviani, Tetra; Putri, Wirdatun Nafiah; Putra, Heriansyah
International Journal of Research in Vocational Studies (IJRVOCAS) Vol. 3 No. 4 (2024): IJRVOCAS - Special Issues - International Conference on Science, Technology and
Publisher : Yayasan Ghalih Pelopor Pendidikan (Ghalih Foundation)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53893/ijrvocas.v3i4.82

Abstract

Red brick is one of the building materials used to make building walls. Red bricks are made from clay and can be mixed using additives. The use of clay has the most composition in the red brick mixture. Adding addictive materials is an effort that many researchers have made to improve the quality of red bricks. In this study, researchers were interested in using carrageenan as a mixture of red bricks. The research was carried out experimentally in the laboratory by making brick samples measuring 5 cm x 5 cm x 5 cm with various mixtures of BMC (control), BMK5 with the addition of 5% carrageenan, BMK10 with the addition of 10% carrageenan, and BMK15 with the addition of 15% carrageenan with drying temperature 50°C, 100°C, and 150°C for 24 hours.Research data was obtained through an experimental process of testing the compressive strength of red bricks using a compression test equipment. The data obtained was processed to obtain the compressive strength value of the red brick. The results showed that addition of 5% of the carrageenan mixture had an effect on the compressive strength of the red brick. Addition of 5% carrageenan contributed to the increase in the compressive strength of the red brick. There was a decrease in the compressive strength of the red brick in the sample with the percentage of addition carrageenan by 10% and 15 %. The ideal drying temperature for a mixture of red bricks with carrageenan is at 50℃ for 24 hours.
Transportation Arrangement as a Basic Plan for Politeknik Negeri Medan to Become an Environmentally Friendly Campus Putri, Wirdatun Nafiah; Kusumadi; Oktaviani, Tetra; Ritonga, Efri Debby Ekinola; Anif, Bahrul
International Journal of Research in Vocational Studies (IJRVOCAS) Vol. 3 No. 4 (2024): IJRVOCAS - Special Issues - International Conference on Science, Technology and
Publisher : Yayasan Ghalih Pelopor Pendidikan (Ghalih Foundation)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53893/ijrvocas.v3i4.255

Abstract

A green campus becomes one of the approaches to overcoming global warming. The green campus evaluation program currently being conducted by Universitas Indonesia is the UI GreenMetric World University Rankings, and one of the categories is transportation. One of the main contributors to pollution levels and carbon emissions is the transportation sector and is potentially to continue to rise unless sustainable prevention efforts are made. With its limited area, Politeknik Negeri Medan needs a more effective transportation arrangement to make it an environmentally friendly campus. Greenmetric assessments are conducted on existing conditions referring to the UI GreenMetric World University Rankings 2023 Guidelines with several criteria, namely the total number of vehicles (cars and motorcycles) divided by total campus population, shuttle services, zero emission vehicles (ZEV) policy on campus, the total number of zero emission vehicles (ZEV) divided by total campus population, ratio of ground parking area to total campus area, program to limit or decrease the parking area on campus for the last 3 years (from 2020 to 2022), number of initiatives to decrease private vehicles on campus, and pedestrian path on campus. The scoring result in the existing conditions is 725, or only about 40.3% of the total maximum value. GreenMetric scoring will increase to 1250 or 69.4% by implementing solutions for transportation arrangements in Politeknik Negeri Medan. The solutions are the use of access cards to filter unauthorized vehicles into the campus area, providing official vehicles electric cars and bicycles for use in the campus area, reducing the ground parking by making a vertical parking, utilizing buses as shuttle facilities for the academic community around the campus with a certain radius to reduce the use of private vehicles and supplementing existing pedestrian paths according to standards of safety, comfort and disability-friendly aspects by adding handrails, roof covers, directions, ramps for disabilities.
Peningkatan Kualitas Layanan Taman Kanak-Kanak Mutiara Bangsa Desa Jambur Pulau Kabupaten Serdang Bedagai Wulan Dary, Rhini; Muhammad Ari Subhan Harahap; Wirdatun Nafiah Putri; Tetra Oktaviani
Jurnal Pengabdian dan Pemberdayaan Masyarakat Vol. 2 No. 1 (2024): Edisi Juni
Publisher : Jurusan Teknik Sipil, Politeknik Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51510/komposit.v2i1.1433

Abstract

Pada daerah Dusun II Desa Jambur Pulau, Serdang Bedagai terdapat Taman Kanak-Kanak Mutiara Bangsa, tempat dimana anak-anak pada usia dini menjalankan aktivitas belajarnya sehari-hari dalam kegiatan yang formal. TK Mutiara Bangsa ini menerima murid setiap tahunnya 54 siswa yang terdiri dari 2 kelas. Dengan meningkatnya kebutuhan masyarakat setempat yang ingin menyekolahkan anak pada usia dini pada TK ini, maka pelayanan dari sekolah ini juga butuh ditingkatkan. Terlebih lagi melihat kondisi layanan umum berupa kamar mandi yang belum layak. Sering kali guru maupun siswa apabila ingin buang air besar/kecil harus pergi ke toilet umum atau ke kamar mandi tempat peribadatan. Hal ini yang menjadi kekhawatiran para guru maupun orangtua siswa yang menyekolahkan anaknya pada TK ini. Demi kenyamanan para guru, orang tua dan murid, kamar mandi pada TK ini perlu direnovasi. Dan juga tempat wudhu perlu dibangun di sebelah kamar mandi sebagai sarana pembelajaran bagi murid untuk belajar tata cara berwudhu tanpa perlu mengantri ke kamar mandi.
Mapping the Distribution of High Buildings in West Medan Subdistrict Using Geographic Information System (GIS) Citra Utami; Dina Septiningtyas; Lisherly R Debataraja; Tetra Oktaviani; Fahrizal Zulkarnain
Jurnal Inotera Vol. 9 No. 2 (2024): July - December 2024
Publisher : LPPM Politeknik Aceh Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31572/inotera.Vol9.Iss2.2024.ID426

Abstract

Cities are one of the main centers for the development of urban areas. The opportunity for investment activities in a city is one of the biggest pull factors for migration. Medan's rapid development can be seen from the construction of many tall buildings such as malls, apartments, and offices. The granting of permits for the construction of these high-rise buildings is closely related to urban spatial planning. Medan City does not yet have a 3D map of the distribution of high-rise buildings, there is only data on the number and location of high-rise buildings. Therefore, urban spatial mapping of high-rise buildings is needed. The model in this research uses a GIS computer model integrated in Arcgis software by taking the object of West Medan sub-district. The results of this study are the suitability of the distribution of tall buildings with a fairly dense uniform pattern in the West Medan sub-district where this sub-district is indeed a service center for trade/business, services and provincial and municipal government activities, and the economy
Co-Authors Amrizal Amrizal Amsuardiman & Kusumadi - Bahrul Anif Citra Utami Debataraja, Lisherly Reginancy Dina Septiningtyas Dina Tri Septiningtiyas Dina Tri Septiningtiyas Dina Tri Septiningtiyas Fadli Fadli Fahrizal Zulkarnain Falwan Rizky Gunawan Hadianti Muhdinar Pasaribu Hani, Sheila Hasibuan, Winda Sri Aton Henny Lydiasari Kusumadi Mabrur, Muhamad Mizanuddin Sitompul Muhammad Ari Subhan Harahap Muhammad Mabrur Muhammad Mabrur Nasution, Fanny Fatia Nofriadi Nofriadi Nofriadi Pasaribu, Hadianti Muhdinar Putra, Heriansyah Putri, Wirdatun Nafiah Rhini Wulan Dary Rifka Ananda Ritonga, Efri Debby Ekinola Samiran, Samiran Utami, Citra