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All Journal Teras Jurnal Potensi : Jurnal Sipil Politeknik Industrial Research Workshop and National Seminar International Journal of Accounting & Finance in Asia Pasific Edubiotik : Jurnal Pendidikan, Biologi dan Terapan
Ery Radya Juarti, Ery Radya
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Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Environmental Science Industrial & Manufacturing Engineering Mechanical Engineering Transportation Other

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Economic Feasibility Analysis of Local Road Maintenance in West Bandung Regency: A Case Study of Cangkorah Street STA 0+000 – 1+300 Juarti, Ery Radya; Sihombing, Atmy Verani Rouly; Pratiwi, Yola Widi; Fadillah, Sekar
International Journal of Accounting & Finance in Asia Pasific (IJAFAP) Vol 6, No 1 (2023): FEBRUARY EDITION OF INTERNATIONAL JOURNAL OF ACCOUNTING FINANCE IN ASIA PASIFIC
Publisher : AIBPM Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32535/ijafap.v6i1.1755

Abstract

This study aims to determine the economic feasibility of local road maintenance scenario in West Bandung Regency with case study of the Cangkorah Street. After knowing the International Roughness Index (IRI) value based on the IKP value from the results of a direct survey using IKP guidelines, the economic feasibility analysis is carried out based on a road maintenance scenario, while the maintenance scenario being tested is a do-something scenario, by doing road maintenance in the form of overlay once every 5 years in 10 year time compared by a do-nothing scenario that is not doing any maintenance for the next 10 years. The research instruments used were prediction of the performance of the Cangkorah Street Pavement for the next 10 years, determine road maintenance scenarios, maintenance budget plans, calculate Vehicle Operational Costs (VOC) for each scenario, and time value. The results of this study are: (1) The budget plan for the maintenance of the Cangkorah Street in the do-something scenario with overlays 3 times in 10 years is Rp. 4,168,019,982, (2) The actual VOC for the do-nothing scenario was Rp. 57,345,718,978 and the actual VOC for the do-something scenario was Rp. 3,132,189,189 with VOC savings was Rp. 54,213,529,789, (3) The time value of the scenario for the next 10 years obtained savings of Rp. 399,241,414, (4) The feasibility of do-something scenario from an economic point of view shows that the scenario is feasible with a NPV of Rp. 36,674,480,627>0 and a BCR of 11,39 >1.
Economic Feasibility Analysis of Local Road Maintenance in West Bandung Regency: A Case Study of Cangkorah Street STA 0+000 – 1+300 Juarti, Ery Radya; Sihombing, Atmy Verani Rouly; Pratiwi, Yola Widi; Fadillah, Sekar
International Journal of Accounting and Finance in Asia Pasific (IJAFAP) Vol 6, No 1 (2023): February 2023
Publisher : AIBPM Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32535/ijafap.v6i1.1755

Abstract

This study aims to determine the economic feasibility of the local road maintenance scenario in West Bandung Regency with a case study of Cangkorah Street. As a strategic road to pass through the route to the city of Bandung and have a heavy traffic with a lot of heavy vehicles pass the road, roads must be maintained in order to create a safe and comfortable road for passengers. There are several ways to maintain the road, one of them is direct survey using IKP guidelines. The result from IKP value by using IKP guidelines will produce in an International Roughness Index (IRI) values the economic feasibility analysis is carried out based on a road maintenance scenario, while the maintenance scenario being tested is a do- something scenario, by doing road maintenance in the form of overlay once every 5 years in 10 year time compared by a do-nothing scenario that is not doing any maintenance for the next 10 years. The research instruments used were prediction of the performance of the Cangkorah Street Pavement for the next 10 years, determine road maintenance scenarios, maintenance budget plans, calculate Vehicle Operational Costs (VOC) for each scenario, and time value. The conclusion of the study is comparing to the scenarios, do-nothing and do-something, the feasibility of do- something scenario from an economic point of view shows that the scenario is feasible with NPV is Rp. 36,674,480,6270 and a BCR of 11.391.
PENGARUH PENAMBAHAN SERAT BAJA (STEEL FIBER) TERHADAP KUAT TEKAN DAN KUAT TARIK BELAH PADA BETON NORMAL Zulpanani, A.; Hendry, Hendry; Sirait, Togar; Juarti, Ery Radya; Kusuma, Yusmiati
Potensi: Jurnal Sipil Politeknik Vol. 25 No. 2 (2023): Potensi: Jurnal Sipil Politeknik
Publisher : Department of Civil Engineering, Politeknik Negeri Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35313/potensi.v25i2.4652

Abstract

Beton normal merupakan beton yang memiliki kuat tekan di bawah 41,4 MPa, dan beton pada mutu ini saat ini menjadi salah satu material yang banyak digunakan dalam dunia konstruksi. Beton adalah suatu campuran yang terdiri dari bahan semen, agregat dan air serta addmixture. Menurut SNI 03-6468-2000 berdasarkan kuat tekannya beton terbagi dua jenis : Beton normal dengan  < 41,4 MPa dan beton mutu tinggi dengan  ≥ 41,4 MPa. Menurut ACI 544.3R-84, Serat baja didefinisikan sebagai serat baja yang mempunyai bentuk kecil-kecil yang rata atau bergelombang, yang didapat dari hasil leburan ekstrak serat-serat baja, yang dalam pemakaianya tersebar merata dalam campuran beton segar dengan aspek rasio yaitu panjang serat dibagi dengan diameter serat (l/d) antara 12,7 mm – 63,5 mm. Dalam penelitian ini variasi serat baja dibuat masing-masing 0%, 4% dan 6% terhadap campuran beton yang dibuat, dengan jumlah benda uji 4 buah untuk kuat tekan dan 4 buah untuk split test (tarik tak langsung) pada umur 14 hari dan 28 hari. Dari hasil pengujian menunjukan bahwa pemakaian serat baja dengan kadar 6% untuk beton normal dapat meningkatkan kuat tekan dan kuat tarik dari beton yang bersangkutan, dari 25,91 MPa dan 2,80 MPa menjadi 36.99 MPa dan 3.96 MPa.
The Use of BIM Application for Schedule Planning and Real of Costs Estimation in Promenade Bridge Construction Project, Taman Mini Indonesia Indah Herawati, Ayisyah; Nuranisa, Bilfiana; Sari, Risna Rismiana; Juarti, Ery Radya
Potensi: Jurnal Sipil Politeknik Vol. 27 No. 2 (2025): Potensi: Jurnal Sipil Politeknik
Publisher : Department of Civil Engineering, Politeknik Negeri Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35313/potensi.v27i2.5301

Abstract

Scheduling and cost estimation are essential for successful construction projects, including the revitalization of Taman Mini Indonesia Indah and the Promenade Bridge development. To improve efficiency and effectiveness, this study applies Building Information Modeling (BIM), using Tekla Structures 2022 for 3D modeling and Quantity Take-Off. The model provides detailed volume data, which—alongside daily and weekly reports—is used for cost analysis and scheduling. BIM integration enables better visualization, planning, and resource management throughout the project lifecycle. The result of the study shows that the total Real of cost estimation of Rp13.136.571.631,44 with the duration of work based on an analysis of daily reports and weekly reports for 155 working days starting on January 6th, 2021 until May 21st, 2021.  The use of Tekla Structures supports accurate modeling and work volume calculations, helping streamline budgeting and scheduling processes. The use of Building Information Modeling (BIM) in construction projects significantly accelerates the scheduling and cost estimation process even though certain limitations must be considered during project planning and execution.
The Effect of Polyacrylamide as Stabilization Material on Bearing Capacity of Subgrade and Unit Price of Work Juarti, Ery Radya; Ambat, Ruth Esther; Iskandar; Solih, Ahmad; Oktavania, Salma; Nugraha, Anissa Puspa; Lhwaint, Abdallh
Potensi: Jurnal Sipil Politeknik Vol. 26 No. 1 (2024): Potensi: Jurnal Sipil Politeknik
Publisher : Department of Civil Engineering, Politeknik Negeri Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35313/potensi.v26i1.5841

Abstract

Stabilization is the mixing of soil with other materials, one of which is polyacrylamide (PAM) synthetic polymer. Subgrade stabilization was carried out on local soil at Jalan Cisasawi, Desa Cihanjuang with the percentage of PAM addition of 4%, 6%, 8%, 10%, and 12% of soil weight. This is done to get a high CBR value. In laboratory tests, PAM was shown to increase the bearing capacity of the soil to the optimum at 8% PAM content from dry weight. At 10% and 12% PAM percentages, the soil experienced a decrease in bearing capacity because it was no longer able to accept other substances from outside. CBR testing with 8% PAM content resulted in a soaked CBR value of 16.4% and an unsoaked CBR of 20.5%. In the Free Compressive Strength test with 4% PAM content, PAM can increase the compressive strength value by 162%, 6% PAM by 207% and 8% PAM by 226% of the original soil compressive strength. It was also calculated the unit price of mixing PAM with soil per 1 m3 as a reference for making a cost budget plan, it was proven that the unit price increased as the percentage of PAM increased.
The Effect of CBR of Soil Stabilised with Polyacrylamide on Flexural Pavement Thickness Based on SKBI 1987 Noorlaelasari, Yullianty; Juarti, Ery Radya; Suyono, Agus; Aisyah, Linda; Oktavania, Salma; Nugraha, Anissa Puspa; Ahmed, Suliman Badawi
Potensi: Jurnal Sipil Politeknik Vol. 26 No. 1 (2024): Potensi: Jurnal Sipil Politeknik
Publisher : Department of Civil Engineering, Politeknik Negeri Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35313/potensi.v26i1.5842

Abstract

Roads must have safety and comfort, which can be seen through the condition of the pavement. A good pavement is influenced by a good bearing capacity of the subgrade. Not infrequently, road damage that occurs is caused by a lack of bearing capacity of the subgrade (CBR<6). One way to improve the bearing capacity of the subgrade is to stabilize it with polyacrylamide (PAM) synthetic polymer. Subgrade stabilization was carried out on local soil at Jalan Cisasawi, Desa Cihanjuang with a percentage of 4%, 6%, 8%, 10%, and 12% of the dry soil weight. From the results of laboratory CBR testing, calculations were made to determine the effect on the thickness of flexible pavement using the SKBI 1987 method. After the calculation, it can be concluded that the CBR value affects the thickness of the flexible pavement layer. The greater the subgrade CBR value, the thinner the pavement thickness (with 8% polyacrylamide). This has been proven in the calculation where PAM managed to increase the bearing capacity of the soil to the maximum at 8% PAM content (soaked CBR 16.4% and unsoaked CBR 20.5%) and the thickness of the lower foundation layer is 25 cm (the thinnest among other levels).
Bacteria Pseudomonas taiwanensis as a decomposing agent of peat fiber Gulo, Elrich Gratiawan WD; Amalia , Dewi; Mase, Lindung Zalbuin; Yulianto, Faisal Estu; Kusuma, Yusmiati; Juarti, Ery Radya; Suyono, Agus
Edubiotik : Jurnal Pendidikan, Biologi dan Terapan Vol. 8 No. 02 (2023): Edubiotik : Jurnal Pendidikan, Biologi dan Terapan
Publisher : Biology Education Department, Universitas Insan Budi Utomo, Malang, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33503/ebio.v8i02.1046

Abstract

Efforts are needed to accelerate the decomposition of peat fiber to reduce the fiber content through bioaugmentation using Pseudomonas taiwanensis bacteria so that it can reduce the high-water content of peat fiber. The research aimed to determine the effect of adding Pseudomonas taiwanensis bacteria on the decomposition of peat fiber. This research is a laboratory experimental research. The research sampling location was in Bereng Bengkel Village, Palangkaraya. The parameters observed included fiber content, fiber size distribution, and peat fiber decomposition speed following the Peat Testing Manual. The research instrument was an observation sheet for fiber content, size distribution, and peat fiber decomposition speed. Research data was analyzed using descriptive statistical analysis. The results showed that adding 15% Pseudomonas taiwanensis bacteria with a curing period of 28 days in fibrous peat resulted in the highest reduction in fiber content, from the initial condition of 61.14% to 12.33%. This variation also shows a decrease in coarse and medium fiber content and a significant increase in fine fiber content. The decomposition rate for this variation shows good consistency. The conclusion was that adding 15% Pseudomonas taiwanensis bacteria with a curing period of 28 days showed optimal results in accelerating the decomposition of peat fiber through the bioaugmentation method.
Evaluasi Perkuatan Eksisting Bronjong Pada Kasus Kelongsoran Jalan Cisasawi, Kecamatan Parongpong, Kabupaten Bandung Barat Amalia, Dewi; Mujiman, Mujiman; Juarti, Ery Radya; Pudin, Apip; Ruchiyat, Iman
Teras Jurnal : Jurnal Teknik Sipil Vol. 12 No. 2 (2022): Volume 12 Nomor 2, September 2022
Publisher : UNIVERSITAS MALIKUSSALEH

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/tj.v12i2.791

Abstract

Abstrak Jalan Cisasawi mengalami kelongsoran pada tahun 2020. Usaha penanganan kelongsoran telah dilakukan oleh warga, menggunakan Bronjong. Hanya saja, perencanaan perkuatan tersebut tidak memperhitungkan persyaratan yang berlaku. Agar tidak terjadi kejadian serupa, perlu dilakukan evaluasi terhadap perkuatan tersebut. Evaluasi dimulai dengan pengumpulkan data dengan cara pengukuran geometri lereng dan pengujian tanah. Analisis stabilitas dilakukan menggunakan software Geostudio. Evaluasi dilakukan di akhir untuk mengetahui apakah konstruksi perkuatan lereng eksisting tersebut cukup aman atau tidak. Dari hasil analisis didapatkan bahwa nilai SF dari lereng eksisting (sebelum adanya bronjong) sebesar 0,504. Kondisi ini sesuai dengan lapangan yaitu lereng mengalami kelongsoran. Hasil analisis stabilitas lereng setelah diperkuat dengan Bronjong adalah SF sebesar 1,014. Nilai SF ini tidak memenuhi yang disyaratkan SNI 8460-2017 faktor keamanan dalam kondisi gempa SF lebih besar dari 1,1 sehingga diperlukan alternatif perkuatan tambahan lereng. Alternatif perkuatan tambahan lereng dilakukan memperbesar dimensi bronjong. Dari hasil analisis perkuatan tambahan didapatkan SF sebesar 1,277. Kata kunci: Perkuatan lereng, longsor, bronjong, angka keamanan  Abstract Cisasawi Road experienced a landslide in 2020. Landslide handling efforts have been carried out by residents, in the form of strengthening gabions. However, the retrofitting plan does not take into account requirements. In order to avoid similar incidents, it is necessary to evaluate the reinforcement. This evaluation begins with collecting data by measuring slope geometry and soil testing. Stability analysis was performed using GeoStudio software. Evaluation is carried out at the end of the analysis to determine whether the existing slope reinforcement construction is safe enough or not. From the results of the analysis, it was found that the SF value of the existing slope (before the gabions) was 0.504. This condition is in accordance with the field, namely the slope is sliding. The result of slope stability analysis after reinforced with Gabions is SF  1.014. This SF value does not meet the required SNI 8460-2017 safety factor in earthquake conditions SF > 1.1 so that additional slope reinforcement alternatives are needed. An alternative to additional slope reinforcement is to increase the gabion dimensions. From the results of the additional reinforcement analysis, it was found that SF 1,277. Keywords: Slope reinforcement, landslide, gabion, safety factor
Analisis Karakteristik Tanah Gambut Berserat dan Dampaknya Terhadap Infrastruktur Amalia, Dewi; WD Gulo, Elrich Gratiawan; Yulianto, Faisal Estu; Kusuma, Yusmiati; Juarti, Ery Radya; Pudin, Apip
Teras Jurnal : Jurnal Teknik Sipil Vol. 14 No. 1 (2024): Volume 14 Nomor 1, Maret 2024
Publisher : UNIVERSITAS MALIKUSSALEH

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/tj.v14i1.1008

Abstract

Abstrak Indonesia merupakan salah satu negara dengan sebaran lahan gambut yang luas. Gambut dikenal sebagai tanah yang bermasalah dalam pekerjaan konstruksi karena memiliki daya dukung yang rendah sehingga tidak dapat menopang pondasi infrastruktur. Tujuan penelitian ini adalah untuk menganalisis karakteristik tanah gambut di Kalimantan, sehingga penanganan yang tepat dapat ditentukan untuk mengatasi permasalahannya. Studi kasus pada penelitian ini adalah tanah gambut di Bereng Bengkel, Palangkaraya. Karakteristik tanah gambut diidentifikasi melalui serangkaian pengujian tanah berdasarkan Peat Testing Manual 1979. Selain itu, dilakukan juga pengujian Scanning Electron Microscopy untuk melihat morfologi tanah gambut, serta pengujian Fourier Transform Infra-Red untuk mengidentifikasi jenis senyawa yang terdapat di dalamnya. Hasil pengujian tanah di laboratorium menunjukkan bahwa tanah gambut memiliki sifat yang buruk secara geoteknik. Dari hasil pengujian SEM, diketahui adanya makropori dan mikropori pada tanah gambut yang sebagian besar ditempati oleh air. Kemudian, berdasarkan hasil pengujian FTIR, diketahui bahwa tanah gambut memiliki senyawa yang bersifat hidrofilik. Kata kunci: tanah gambut, serat gambut, infrastruktur Abstract Indonesia is one of the countries with a wide distribution of peatlands. Peat is known as a problematic soil in construction work because it has a low bearing capacity that cannot support infrastructure foundations. The objective of this research is to analyze the characteristics of peat soils in Kalimantan, so that appropriate treatments can be determined to overcome the problem. A case study of this research is the peat soil in Bereng Bengkel, Palangkaraya. The characteristics of the peat soil were identified through a series of soil tests based on the Peat Testing Manual 1979. In addition, Scanning Electron Microscopy testing was carried out to look at the morphology of the peat soil, as well as Fourier Transform Infra-Red testing to identify the types of compounds contained therein. The results of soil testing in the laboratory showed that the peat soil had poor geotechnical properties. SEM testing revealed macropores and micropores in the peat soil, most of which were occupied by water. FTIR testing showed that peat soil has hydrophilic compounds. Keywords: peat soil, peat fiber, infrastructure
Perencanaan Jadwal dan Anggaran Biaya dengan Penerapan BIM pada Proyek Jembatan CL-06 Ibu Kota Nusantara Muhammad, Fadhil; Torino, Fikri Haafizh; Juarti, Ery Radya; Indah, Risma Nur
Prosiding Industrial Research Workshop and National Seminar Vol. 16 No. 1 (2025): Vol. 16 No. 1 (2025): Prosiding 16th Industrial Research Workshop and National
Publisher : Politeknik Negeri Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35313/irwns.v16i1.6702

Abstract

Industri konstruksi menghadapi tantangan dalam efisiensi dan akurasi, terutama saat menggunakan metode konvensional. Building Information Modeling (BIM) hadir sebagai solusi inovatif yang menggabungkan model 3D dengan penjadwalan dan estimasi biaya untuk meningkatkan manajemen proyek. Tugas akhir ini membahas penerapan BIM pada Proyek Jembatan CL06 di Ibu Kota Nusantara (IKN) sepanjang 60 meter dan lebar 23 meter. Pemodelan dilakukan menggunakan Autodesk Revit berdasarkan As Built Drawing, mencakup seluruh elemen struktural dan arsitektural. Hasil model digunakan untuk kuantifikasi material (Quantity Take Off) yang kemudian disusun menjadi Rencana Anggaran Biaya (RAB) dengan acuan harga Dinas Pekerjaan Umum Kalimantan Timur tahun 2023–2024 melalui Microsoft Excel. Penjadwalan proyek dilakukan dengan Microsoft Project dan diintegrasikan ke Autodesk Navisworks untuk menghasilkan simulasi visual konstruksi. Hasilnya menunjukkan durasi proyek 355 hari kalender dan 21 item pekerjaan sebagai kegiatan kritis. BIM terbukti efektif dalam mendeteksi konflik desain, mengoptimalkan sumber daya, mengurangi risiko keterlambatan dan pembengkakan biaya, serta mempercepat estimasi biaya dan memperjelas visualisasi desain.
Co-Authors Abdallh Lhwaint, Abdallh AGUS SUYONO Ahmed, Suliman Badawi Aisyah, Linda Amalia , Dewi Ambat, Ruth Esther Dewi Amalia Fadillah, Sekar Faisal Estu Yulianto, Faisal Estu Gulo, Elrich Gratiawan WD Hendry . Herawati, Ayisyah Indah, Risma Nur ISKANDAR Kusuma, Yusmiati Lindung Zalbuin Mase, Lindung Zalbuin Muhammad, Fadhil Mujiman Mujiman, Mujiman Nugraha, Anissa Puspa Nuranisa, Bilfiana Oktavania, Salma Pratiwi, Yola Widi PUDIN, APIP Risna Rismiana Sari, Risna Rismiana Ruchiyat, Iman Sihombing, Atmy Verani Rouly Sirait, Togar Solih, Ahmad Torino, Fikri Haafizh WD Gulo, Elrich Gratiawan Yullianty Noorlaelasari, Yullianty Zulpanani, A.