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Upaya Diversifikasi Konstruksi Beton untuk Jenis Perkerasan Kaku di Atas Tanah Gambut Etty Rabihati
Vokasi Vol 12 No 1 (2017): Vokasi
Publisher : Politeknik Negeri Pontianak

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Abstract

Abstract: Gamtos is an alternative construction by utilizing local soil that Peat becomes partof the structure of the pavement by adding Matos as its stabilization material. Matos® wasadded to peat soil at a ratio of 1 kg / m3 based on the optimum moisture content on the soiland then added cement 5- 25% by weight of soil. Then tested the mechanical properties of theUnconfined Compressive Strength (UCS) soil, which results will aplied in the implementationof an environmental road to further calculated material costs and implementation of its work,and then analyzed the comparison cost of work Gamtos with concrete work. From the resultsof research was the addition of the percentage Matos® to the largest peat soil is at 12%, itproduces CBR value of 3.75%, while the percentage of Matos® 3% + cement 8% yields CBRvalue of 6.4%, 6% cement percentage + 8% cement yields CBR value 7.4% and the addedpercentage of Matos® 9% + cement 8% yields 8% CBR value. For the required cost budgetper m2 for each of the most economical mixtures is a mixture of Matos® 3% of 8% cementadditions of Rp13,800.00.
Analisis Kebutuhan Angkutan Umum Penumpang Trayek Pontianak Rasau Jaya Nernawani Nernawani; Indah Rosanti; Etty Rabihati
Vokasi Vol 13 No 1 (2018): Vokasi
Publisher : Politeknik Negeri Pontianak

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Abstract

Public transportation is a familiar mode of land transportation for road users, now public transportation becomes the rarest thing in Pontianak area, especially Pontianak - Rasau Jaya route, for it is considered necessary to know what variables are very influential on the performance of public transportation. The purpose of this study is to know what variables are very influential performance of public transport, how much Load Factor and how many public transports should be provided to serve from the Road Trajectory Pontianak - Rasau Jaya. From the results of this study found that variables that are very influential on the performance of public transport Tayek Pontianak-Rasau Jaya is the Length of Tayek, Reability, and Comfort, security and safety. While LF during peak hours 5.11 while the hour is not busy at 1.79, while the estimated number of buses 2 pieces.
Karakteristik Laston AC-WC Menggunakan Variasi Kadar Filler Limbah Balon Gas Etty Rabihati; Rasiwan Rasiwan; Rika Riyanti
Vokasi Vol 13 No 2 (2018): Vokasi
Publisher : Politeknik Negeri Pontianak

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Abstract

Transportasi merupakan salah satu elemen pendukung yang penting dalam pembangunan Negara dan salah satu sistem transportasi yang merupakan penghubung antar daerah adalah jalan. Oleh karena itu perlu adanya inovasi-inovasi dalam perancangan perkerasan jalan yang berkelanjutan agar tercipta kondisi jalan yang baik. Sebagaimana diketahui Laston (AC-WC) adalah merupakam bahan campuran aspal jenis perkerasan lentur yang terdiri dari campuran agregat dan aspal, dengan atau tanpa bahan tambah . Susunan gradasi agregat menerus pada Laston ini menyebabkan banyak digunakan untuk perkerasan jalan dengan klasifikasi lalu-lintas berat serta diutamakan untuk digunakan pada daerah tropis sehingga banyak diterapkan di Indonesia. Untuk mendapatkan campuran aspal beton yang yang sesuai dengan susunan gradasi yang disyaratkan maka digunakanlah filler yang berfungsi sebagai bahan pengisi, misalnya semen, ataupun debu abu batu, dalam hal ini kesemua material tersebut adalah material yang tidak dapat diperbarui, untuk itu perlu inovasi-inovasi lebih lanjut untuk mencari material alternatif pengganti filler, dalam penelitian ini digunakan variasi filler limbah balon gas. Dari hasil penelitian dapat disimpulkan bahwa nilai stabilitas Laston WC dengan menggunakan Limbah Balon Gas lebih tinggi dibandingkan dengan Semen sebagai Filler kenaikan nilai stabilitas sebesar 14,98 %, walaupun nilai flow kecil namun nilai VIM, VMA dan VFB lebih kecil sedikit , namun emua nilai karakteristik tersebut masih sesuai dengan spesifikasi.
Karakteristik Beton Scc (Self Compactibility Concrete) dengan menggunakan Limbah Kaca dan Limbah Bauksit sebagai Bahan Tambah Etty Rabihati; Rasiwan Rasiwan; Deny Syahrani
Vokasi Vol 15 No 2 (2020): Vokasi
Publisher : Politeknik Negeri Pontianak

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (80.734 KB) | DOI: 10.31573/vokasi.v15i2.157

Abstract

The use of SCC (Self Compactibility Concrete) concrete in Indonesia is increasing in the field, especially for a variety of buildings that require large compaction speeds or use concrete that can compact itself. SCC Concrete Technology in the construction industry is growing, especially in meeting the needs of the construction world. Added material is an alternative material used to increase the strength characteristics of the concrete. Likewise the addition of glass powder waste, and bauxite waste in making SCC concrete is expected to increase the compressive strength concrete. Fresh concrete, which belongs to the self-compacting concrete (SCC) group, has a very high slump value (more than 20 cm), so measurements with cone abrams are no longer effective. The use of these materials as substitute materials and added based on the thought to utilize glass waste and , bauxite waste in order to reduce the impact of environmental pollution and provide economic value. This study uses glass powder as glass waste and bauxite waste as added material for cement. This study uses four kinds of mixed compositions, namely 0% (ordinary concrete); 2.5% mixture; 5% and 7.5% by weight of cement as added material from glass waste and bouksit waste, where each composition consists of 3 cylindrical specimens with a diameter of 15 cm and a height of 30 cm. Until now there has never been any research from mananpun to test the 2 (two) mixtures, therefore we want to test it so that glass waste and bauxite waste are not wasted and can be reused, especially in making SCC concrete. From the research results it was found that the maximum slum cone test results were in the 2.5% variation that is equal to 44.3 cm, while the minimum at 0% was 29.3 cm. The maximum compressive strength at the age of 3 days is 455,418 kg / cm2 for variations of 7.5% while the minimum is at a variation of 2.5% of 200.469 kg / cm2 at 7 days of concrete.
Analisis Kebutuhan Sarana dan Prasarana Kawasan Kumuh di Kabupaten Sambas Deny Syahrani; Etty Rabihati; Rasiwan Rasiwan
Vokasi Vol 16 No 1 (2021): Vokasi
Publisher : Politeknik Negeri Pontianak

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (520.211 KB) | DOI: 10.31573/vokasi.v16i1.312

Abstract

As a result of the COVID-19 Pandemic Outbreak, proper living for slum dwellers has become increasingly difficult, the income level of the population has decreased so that areas where slum areas were not identified at first may increase the spread of their territory. According to the Decree of the Regent of Sambas Number 872 / BAPPEDA of 2014 concerning the Determination of the Location of Housing and Slum Settlements in Sambas Regency, the slum settlement area covering an area of ​​75.77 ha is spread over 3 sub-districts covering 4 villages. Namely Pendawan Village, Tanjung Bugis Village in Sambas District, Penjajab Village, Penjajab District and Sekura Village, Sekura District. Of the 4 villages that occupy the largest area for slum areas is Tanjung Bugis Village with an area of ​​23.05 ha (30.42%). This study aims to identify the factors that cause slum areas in Sambas Regency, identify facilities and infrastructure, especially environmental roads, garbage, wastewater and housing, analyze the needs for facilities and infrastructure from the data obtained in the form of roads, to, clean water and housing. This research was conducted deductively, so that the researchers departed from theory to go into the field in conducting data searches which were then expected to analyze the facilities and infrastructure needs of the slum area in Sambas City. .From the results of this study, it is found that the factors that cause slum are insufficient income of Rp. 500,000 - Rp. 1,000,000.00, the last education is very low elementary school (elementary school) and the number of families between 3-5 people. Meanwhile, from the analysis of the need for facilities and infrastructure, appropriate technology is needed for community water sources that still use public taps, environmental roads use concrete rebates but many are still damaged, drainage channels are not there if the water is not smooth or jammed while the trash can is not owned, especially TPS (Temporary Disposal Site) for garbage.
EVALUASI RANCANGAN MUTU BETON PADA PEMBANGUNAN GEDUNG DI KALIMANTAN BARAT Andre Renaldi Prameswara; Dony Dony; Rasiwan Rasiwan; Etty Rabihati
Construction and Material Journal Vol. 4 No. 3 (2022): Construction and Material Journal Vol. 4 No. 3 November 2022
Publisher : Politeknik Negeri Jakarta

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Abstract

Concrete is a significant substance that is frequently employed in infrastructure construction. When manufacturing concrete, a concrete mix, or Design Mix Formula (DMF), must be created to specify the proportions of the materials to achieve the desired concrete quality. Concrete quality is classified based on the compressive strength of the concrete, which value has a significant impact on the DMF produced. One of the factors that can affect the quality of concrete is the fact that the dosage used in making concrete in the field is not in accordance with the existing DMF. This means the quality of the concrete in the field is not in accordance with what was planned, namely the quality of K-300 concretes. This study's objectives are to assess the current DMF and examine the variables influencing concrete quality in the field. To conduct the research, the Pontianak State Polytechnic's Civil Engineering Concrete Laboratory tested aggregates, created DMF, created cube specimens, and tested cube concrete compression tests. As a result, it can be said that one DMF can be used for all these structures because the laboratory results demonstrate that the DMF utilized in the field is consistent with the intended concrete quality, namely K-300 concrete quality. At the age of 28 days, concrete with a slump value of 9 cm had an average compressive strength of 339.882 kg/cm2, or 28.21 MPa. According to the findings of these investigations, the field-related factors cause the quality of the concrete to differ from the planned concrete's quality. Keywords: Concrete, DMF, Quality of Concrete, Testing, Compressive Strength.
PERANCANGAN DAN EVALUASI PENERAPAN SISTEM MANAJEMEN MUTU PADA JURUSAN TEKNIK SIPIL POLITEKNIK NEGERI PONTIANAK Etty Rabihati; Ryanti, Eva
JURNAL PERSPEKTIF ADMINISTRASI DAN BISNIS Vol. 5 No. 1 (2024)
Publisher : JURUSAN ADMINISTRASI BISNIS POLITEKNIK NEGERI PONTIANAK

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38062/jpab.v5i1.743

Abstract

Penelitian ini akan mengkaji Perancangan dan Evaluasi Penerapan Sistem Manajemen Mutu pada Jurusan Teknik Sipil Politeknik Negeri Pontianak (Polnep) berdasarkan baru terbentuknya Manajemen yang baru di jurusan Teknik Sipil Polnep dan apakah sudah tersedia Dokumen Mutu untuk Proses Belajar Mengajar (PBM) dalam penerapan Sistem penjaminan Mutu Internal (SPMI) di Jurusan Teknik Sipil Polnep sehingga penjaminan Mutu di Jurusan Teknik Sipil berkelanjutan. Berdasarkan Undang-undang No. 12 Tahun 2012 tentang Pendidikan Tinggi dan Permendikbud No 50 Tahun 2014 tentang Sistem Penjaminan Mutu Pendidikan Tinggi. Penerapan penjaminan Mutu di Perguruan Tinggi dikelola secara otonom untuk mengendalikan dan meningkatkan penyelenggaraan pendidikan tinggi secara berencana dan berkelanjutan. SPMI di Polnep berada di bawah pengawasan PPMPP dan penjaminan mutu di Jurusan di bawah pengawasan Ketua Jurusan dan di koordinir oleh seorang Quality Assurance di masing-masing Prodi, identifikasi dan evaluasi dokumen mutu PBM dimulai dari proses apa saja yang harus dipenuhi oleh Jurusan dalam menjamin mutu proses belajar mengajar yang di dapat dari PPMPP Polnep. Didapat Proses penjaminan mutu untuk jurusan teknik sipil politeknik negeri pontianak telah dilakukan proses pemenuhan dokumen mutunya seperti IKAD, survey kepuasan mahasiswa terhadap layanan dan sapras penunjang pendidikan di prodi, matriks kompetensi dosen dan tendik tahunan, monitoring dan evaluasi PBM dan sapras oleh QA, laporan kinerja program studi dan laporan evaluasi diri prodi, penyusunan analisa capaian pembelajaran, menyelesaikan telaahan dari audit mutu internal. Beberapa dokumen mutu (SOP, analisa jabatan manajemen Jurusan) ada dibuat draft nya dan ada yang direvisi dalam menunjang proses penjaminan mutu di jurusan teknik sipil polnep, dibuatnya kotak keluhan pelanggan. Penerapan dari pengembangan jurusan teknik sipil penyusunan Renstra sesuai dengan analisa jabatan, perlunya SOP sistem pembelajaran yang sesuai dengan standar mutu yang diperlukan, diperlukan format RPS yang seragam sesuai dengan standar mutu SPMI, perlu penyusunan kurikulum yang terbarukan di masing-masing prodi.
Pemanfaatan Limbah Bauksit (Tailing Bauxite) Sebagai Bahan Pengganti Agregat Halus Terhadap Kuat Tekan, Kuat Tarik Belah, dan Modulus Elastisitas Pada Beton Rabihati, Etty; Purnama, Ikhwan Arief; Adjie, Muhammad Syafri; Rachmawan, Valdi Dwi
RETENSI Vol. 1 No. 1 (2020): Retensi
Publisher : Jurusan Teknik Sipil Polnep

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31573/retensi.v1i1.232

Abstract

Until now, bauxite waste (bauxite tailings) has not been utilized in its entirety, causing an increase in the amount of waste in the bauxite producing areas. The percentage between the bauxite produced and the amount of waste produced is 50%: 50%. This research was conducted to see whether or not the use of liquid waste (tailings bauxite) is appropriate as a place for fine aggregate in the manufacture of concrete. This study used an experimental method with the replacement of the concrete mixture, namely sand with bauxite waste (bauxite tailings) with the proportion of bauxite waste (bauxite tailings) of 2.5%, 5%, and 7.5%. The tests carried out were compressive strength testing, split tensile strength testing, and modulus of elasticity. The results of the test for the highest compressive strength average age of 7 days were found in normal concrete with an average compressive strength of 21.58 MPa. The average compressive strength of 28 days was 7.5% bauxite waste concrete with an average compressive strength of 32.07 MPa. The tensile strength of 7 days was in bauxite waste concrete at 7.5% with a split tensile strength of 2.90 Mpa. The tensile strength of 28 days was in bauxite waste concrete 7.5% with a split tensile strength of 3.26 Mpa. The highest average modulus of elasticity is found in 7.5% bauxite waste concrete with a yield of 26607.03 Mpa, Keywords: Bauxite Waste (Tailing Bauxite), Compressive Strength, Modulus of Elasticity, Split Tensile Strength
ANALISIS SARANA DAN PRASARANA SMA MUJAHIDIN PONTIANAK: ANALISIS SARANA DAN PRASARANA SMA MUJAHIDIN PONTIANAK Maulana, Bagus; Andoni, Sulistyo Sapta; Rabihati, Etty; Riyanti, Rika
RETENSI Vol. 2 No. 1 (2021): Retensi
Publisher : Jurusan Teknik Sipil Polnep

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31573/retensi.v2i1.438

Abstract

Senior High School (abbreviated SMA) is a secondary level of formal education in Indonesia after graduating from Junior High School (or its equivalent). High school is taken within 3 years, starting from grade 10 to grade 12. The school that will be studied by the author has several problems that occur, therefore the author is interested in conducting research on facilities and infrastructure in the school. Therefore, the author submitted a questionnaire in order to find out what problems occurred in the school. The purpose of this study is that students are able to analyze the facilities and infrastructure of the Pontianak Mujahidin High School, able to overcome the problems that occur in the environment. The methods used in solving this problem are qualitative methods and quantitative methods. The qualitative method is subjective in nature, the research interacts directly with the object being studied. Meanwhile, quantitative methods are objective, independent research is what is being studied. Facilities and infrastructure problems that occur include the parking area which is enlarged by 33% from the initial area and the elevation of the parking area. The second is the widening of the dimensions of the enlarged drainage channel in order to prevent flooding. Finally, by increasing the dimensions of the classroom lighting so that the classroom lighting is sufficient.
PENATAAN KAWASAN KUMUH DUSUN MANDALA DESA MENDALOK KABUPATEN MEMPAWAH: PENATAAN KAWASAN KUMUH DUSUN MANDALA DESA MENDALOK KABUPATEN MEMPAWAH Rendra Setiawan, Gusti; Punomo, Punomo; Rabihati, Etty; muhtadi, ahmad
RETENSI Vol. 3 No. 1 (2022): Retensi
Publisher : Jurusan Teknik Sipil Polnep

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31573/retensi.v3i1.504

Abstract

Permukiman kumuh yang berada di Dusun Mandala Desa Mendalok, Kecamatan sungai kunyit, Kabupaten Mempawah, Kalimantan Barat, Indonesia. Merupakan salah satu permukiman yang masih harus diperhatikan yang mengikuti peraturan – peraturan penataan yang berlaku. Salah satu aturan Kriteria Perumahan Kumuh dan Permukiman Kumuh meliputi krietria kekumuhan ditinjau dari bangunan gedung, jalan lingkungan, dreanase lingkungan, Penyedian air bersih, pengolahan air limbah, kondisi pengelolahan sampah dan kebakaran. Tujuan dari penulisan Penelitian adalah menjadikan kawasan yang tidak kumuh dan mengikuti peraturan yang ada. Konsep Penataan permukiman yang diterapkan adalah konsep penataan permukiman kampung nelayan yang dimana pembangunan lahan terfokus menjadi pembahasan utama. Metode yang dipakai untuk memperoleh data pendukung penulisan penelitian ini yaitu dengan cara observasi, wawancara, kuesioner, dan data pengukuran. Dimana hasil penelitian yang didapatkan adalah Pentaan terfokus dengan luasan 0,81 Ha dengan pembangunan rumah layak huni dengan type 60 sebnyak 37 buah dan rumah type 80 dengan 8 rumah, drainase menggunakan penampang trapesium dan membaut TPS sebanyak 4 buah dengan timbunan sampah perhari sebanyak 6,90 m3/hari.