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All Journal PengabdianMu: Jurnal Ilmiah Pengabdian kepada Masyarakat Retensi
Rabihati, Etty
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Agriculture, Biological Sciences & Forestry Civil Engineering, Building, Construction & Architecture Economics, Econometrics & Finance Engineering Law, Crime, Criminology & Criminal Justice Public Health Social Sciences Transportation

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Journal : Retensi

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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.
MANAJAMEN KONSTRUKSI PADA GEDUNG KANTOR JALUR NUGRAHA EKAKURIR EMPAT LANTAI DI KOTA PONTIANAK: MANAJAMEN KONSTRUKSI PADA GEDUNG KANTOR JALUR NUGRAHA EKAKURIR EMPAT LANTAI DI KOTA PONTIANAK Liary, Gyrez; Utomo, satriyo; Rabihati, Etty
RETENSI Vol. 3 No. 2 (2023): Retensi
Publisher : Jurusan Teknik Sipil Polnep

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31573/retensi.v3i2.659

Abstract

Penulis melakukan perencanaan manajemen konstruksi pada Pembangunan Kantor Jalur Nugraha Ekakurir Empat Lantai di Jalan Abdul Rahman Saleh, Kota Pontianak yang sebelumnya telah dilakukan perencanaan struktur dan gambar rencana. Oleh karena itu, untuk mewujudkan pembangunan Gedung Kantor Jalur Nugraha Ekakurir diperlukan perencanaan manajemen konstruksi yang tepat, agar proses pembangunan Gedung Kantor ini berjalan dengan lancar, tepat waktu, efisien dan mutu yang diinginkan dapat tercapai. Maka dari itu, Penulis merencanakan sistem manajemen konstruksi pembangunan Gedung Kantor Ekakurir yang dijadikan judul pada penelitian ini. Metode yang digunakan dalam pembahasan manajemen konstruksi ini adalah sistem manjemen biaya, mutu, waktu, Sumber Daya Manusia (SDM) dan Kesehatan dan Keselamatan Kerja (K3) pada pekerjaan struktur yang meliputi pondasi, balok, kolom dan plat lantai. Berdasarkan hasil analisa metode di atas didapat biaya pekerjaan persiapan dan struktur yang diperlukan dalam penyelesaian proyek pembangunan Gedung Kantor Ekakurir adalah Rp. 18.500.000.000 dan dapat diselesaikan dalam waktu 25 minggu atau 222 hari kalender. Untuk perencanaan mutu hasilnya berupa pengendalian mutu dan daftar tabel spesifikasi. Pada perencanaan Sumber Daya Manusia (SDM) berupa jumlah kebutuhan tenaga kerja sebagai sarana untuk pelaksanaan kerja yang baik dan pada perencanaan manajemen K3 yang direncanakan berupa identifikasi dan pengendalian potensi bahaya K3 terhadap masing-masing jenis pekerjaan dan biaya untuk kebutuhan Alat Pelindung Diri (APD) dan Alat Pelindung Kerja (APK) sebesar Rp. 38.820.000. Kata Kunci: perencanaan, manajemen konstruksi, kantor, pekerjaan struktur, biaya
Manajemen dan Rekayasa Lalu Lintas Terhadap Dua Simpang Bersinyal Yang Berdekatan (Studi Kasus Simpang Empat Jalan KH.A Dahlan – Jalan Karimata – Jalan Johar dan Simpang Tiga Jalan KH.A Dahlan – Jalan Alianyang – Jalan KHW. Hasyim) Pontianak: Manajemen dan Rekayasa Lalu Lintas Terhadap Dua Simpang Bersinyal Yang Berdekatan (Studi Kasus Simpang Empat Jalan KH.A Dahlan – Jalan Karimata – Jalan Johar dan Simpang Tiga Jalan KH.A Dahlan – Jalan Alianyang – Jalan KHW. Hasyim) Pontianak nernawani, nernwani; Rabihati, Etty; riyanti, rika
RETENSI Vol. 4 No. 1 (2023): Retensi
Publisher : Jurusan Teknik Sipil Polnep

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31573/retensi.v4i1.724

Abstract

The number of intersections with adjacent intersections in Pontianak City raises its own problems, one of which is the signalized intersection on Jalan KH. Ahmad Dahlan Pontianak. The short - term strategy to overcome these problems is traffic management and engineering to improve traffic flow based on field condition evaluation . Data collection was carried out by means of direct surveys at both intersections. The data obtained is used to obtain the existing conditions which will be a reference in planning a new cycle time by taking into account the coordination theory. Meanwhile, in calculating to get the best performance at each intersection, it is done using the MKJI approach. The best performance at each intersection is then coordinated using the green time between intersections. The results of the analysis of the performance of the existing conditions show that the degree of saturation is DS = 0.86 for signalized intersection 4 and DS = 0.68 for signalized intersection 3 which are not too different from what MKJI requires, DS = 0.75 , but it is not comfortable and safe to go through. From the queue length (QL) at the four intersection of 288 meters > the distance between the intersections which is 200 meters apart, and also from the delay time (DQ) of 66.03 seconds > from the green cycle time of 25 seconds, After knowing the performance of the existing intersection, then create a new cycle time planning for both intersections. The new cycle time with the best performance will be used to coordinate the two intersections. Selection of the best cycle time by comparing the values ​​of the degree of saturation (DS), the length of the queue (QL), and the delay (Delay) from several alternatives that were carried out. From the results of the study, a new cycle time of 95 seconds was obtained. The offset time used is 36 seconds, and the bandwidth from East to West and from West to East is 16 seconds. With the new cycle time the performance values ​​of the two intersections get better because the average delay and queue length decrease, for intersection 4 (DS = 0.76; QL = 136 m; DQ = 67 seconds) and intersection 3 (DS = 0, 67; QL = 94.5 m ; DQ = 65.37 seconds),
Co-Authors Adjie, Muhammad Syafri Ahmad Muhtadi Andoni, Sulistyo Sapta Haffiyan, Qalby Hafiyyan, Qalbi ikhwan Arief Purnama Irene anggraini Liary, Gyrez Maulana, Bagus nernawani, nernwani Perangin Angin, Imanuel Kemenangenta Punomo, Punomo Purnama, Ihkwan Arief Rachmawan, Valdi Dwi Randy Setiawan, Randy Rendra Setiawan, Gusti Reski, Indah Anjar Riyanti, Rika Rizal Rizal Ryanti, Eva Sasongko, Hartanto Wahyu Utomo, Satriyo