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All Journal Jurnal Pendidikan Teknologi dan Kejuruan CIVED (Journal of Civil Engineering and Vocational Education) Jukung (Jurnal Teknik Lingkungan) Jurnal Sains dan Teknologi: Jurnal Keilmuan dan Aplikasi Teknologi Industri Teknomekanik Jurnal Applied Science in Civil Engineering Jurnal Aerasi Journal of Engineering Researcher and Lecturer JPNM : Jurnal Pustaka Nusantara Multidisiplin International Journal of Environment, Engineering, and Education Horizon: Indonesian Journal of Multidisciplinary Journal of Civil Engineering and Vocational Education Jurnal Keilmuan dan Aplikasi Teknologi Industri Jurnal Keilmuan dan Aplikasi Teknologi Industri
Yaumal Arbi
Civil Engineering, Faculty Of Engineering, Universitas Negeri Padang, Indonesia
Religion Agriculture, Biological Sciences & Forestry Humanities Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Mechanical Engineering Social Sciences Transportation Other

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Durability performances of ferronickel slag aggregate and seawater concrete Sandra, Nevy; Caronge, Muhammad Akbar; Sunaryati, Jati; Kawaai, Keiyu; Nsama, Willick; Arbi, Yaumal; Arifin, Ari Syaiful Rahman
Teknomekanik Vol. 8 No. 1 (2025): Regular Issue
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/teknomekanik.v8i1.34572

Abstract

The rising demand for concrete in the building sector has resulted in the exhaustion of natural sand and freshwater supplies, leading to the pursuit of sustainable substitutes. Coastal areas have plentiful ferronickel slag (SL) and seawater (SW), which can be used to manufacture concrete. Nevertheless, the possibility of corrosion to steel reinforcement raises concerns that require further research. This investigation examines the mechanical and durability performance of concrete that incorporates SL as a partial replacement for fine aggregate and SW as a mixing component. The objective is to optimize SL content to improve compressive strength, resistance to chloride ions, and overall durability. Experimental results show that replacing 25% of the aggregate with SL yields the best combination of workability, strength, and durability, significantly enhancing compressive strength, decreasing porosity, and lessening chloride ion penetration, as evidenced by the Rapid Chloride Penetration Test (RCPT). Although seawater promotes early-age hydration and strength development, its extended use slightly diminishes compressive strength due to salt-induced micro-cracking. However, SL counters these effects, making SW–SL mixture a feasible and sustainable option for concrete production in coastal and resource-limited areas. A significant relationship between RCPT and compressive strength underscores the important role of SL in densifying the matrix and improving impermeability. The concrete mixture with 25% SL exhibits the lowest abrasion weight loss at 28 and 120 days, showing improved durability. This study highlights the potential of using SL and seawater to create eco-friendly and high-performance concrete for harsh environments.
System dynamics modelling of integrated urban clean water management: A case study in Padang City, Indonesia Arbi, Yaumal; Ramadhianty, Rumia; Rahayu, Shinta; Putri, Widia
Journal of Engineering Researcher and Lecturer Vol. 4 No. 2 (2025): Regular Issue
Publisher : Researcher and Lecturer Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58712/jerel.v4i2.184

Abstract

Access to clean water is essential for human life and a key target of Sustainable Development Goal (SDG) 6: Clean Water and Sanitation. However, cities in developing countries, including Padang City, Indonesia, face significant challenges in meeting the growing demand due to population growth and limited water infrastructure. This study used system dynamics modelling approach with Powersim Studio 10 to develop an integrated clean water management system for Padang City. The model simulates the dynamics of population growth, water consumption, production, and distribution efficiency over a 20-year period (2022–2042). Several policy scenarios—optimistic, moderate, and pessimistic—were tested to evaluate their impact on water availability. The baseline scenario predicts a continuous decline in clean water supply due to increasing population, high leakage rates (11.99%), and water wastage (2%), which surpass the water production growth rate (5.01%). As a result, a water deficit is expected. However, under the optimistic scenario, with increased production (10%), reduced leakage (8%), and reduced wastage (3%), Padang City could achieve a clean water surplus by 2042. The moderate and pessimistic scenarios still result in a deficit. This research highlights the value of the system dynamics modelling in forecasting urban water demand and assessing policy impacts. The findings emphasize the need for integrated planning, combining technical solutions and behavioural change, to ensure sustainable water management and support the achievement of SDG 6.
Self-Efficacy as a predictor of entrepreneurial interest among university students: A quantitative study Mulyani, Yusni; Arbi, Yaumal
Jurnal Pendidikan Teknologi Kejuruan Vol 8 No 2 (2025): Regular Issue
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jptk.v8i2.44023

Abstract

Entrepreneurship is increasingly seen as an important strategy in reducing unemployment among college graduates and promoting economic resilience. This study aims to examine the predictive role of self-efficacy an individual's belief in their ability to complete a specific task in shaping entrepreneurial interest among university students. Self-efficacy is believed to influence how individuals perceive opportunities and challenges in starting a business, thereby playing a central role in entrepreneurial motivation. A descriptive quantitative approach was used in this study, with data collected through a structured questionnaire distributed to 348 students from nine faculties at the University of Padang. The questionnaire was designed using a Likert scale to measure levels of self-efficacy and interest in entrepreneurship. Data analysis was conducted using descriptive tests, normality, linearity, homogeneity, and hypothesis testing using Pearson's correlation. The results of the study showed a positive and significant relationship between self-efficacy and entrepreneurial interest (significance value= 0.012), with a Pearson correlation coefficient of 0.113, indicating a moderate relationship. Most students demonstrated relatively low levels of self-efficacy and interest in entrepreneurship, but students with high self-efficacy tended to have greater interest in entrepreneurship. These findings emphasize the importance of integrating self-confidence building into university entrepreneurship programs to enhance students' readiness and motivation to enter the entrepreneurial world after graduation.
Analysis of Irrigation Water Requirement in Batang Sanipan 2 Irrigation Area Limapuluh Kota Regency Arbi, Yaumal; Jamarun, Novirman; Sumbara, Bagas
CIVED Vol. 10 No. 3 (2023): September 2023
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/cived.v10i3.4

Abstract

Limapuluh Kota Regency is one of the rice producing districts in West Sumatra Province, so an irrigation network is needed to meet water requirement for agricultural productivity. The problem that occurs in the Batang Sanipan 2 irrigation area is the inability of water to flow through the service area to the end point of the irrigation area. Based on observations from e-PAKSI data from the Limapuluh Kota Regency Public Works Office, water can only flow up to a distance of 3.175 km from the intake gate and experience water loss along 1.445 km to the end of the canal. Therefore, it is necessary to study the analysis of irrigation water requirement in the irrigation area of Batang Sanipan 2, Limapuluh Kota Regency. This type of research is descriptive with a quantitative approach. Research methods carried out directly in the field. Based on data analysis, the results obtained from the manual calculation of KP – 01 the maximum irrigation water requirement with a value of 0.139 m3/second which occurred in March, while in the Cropwat software the maximum irrigation water requirement with a value of 0.149 m3/second which occurred in July. The results of measuring the discharge at the intake of the Batang Sanipan 2 weir obtained a discharge of 0.378 m3/second. Based on this, water is sufficient to flow through the entire agricultural area of the Batang Sanipan 2 irrigation area, but the current conditions are that water is not able to flow through parts of the Batang Sanipan 2 irrigation service area.
Desain Peta Irigasi Petak Tersier L1 Ta Sunua Tengah Daerah Irigasi Batang Anai II Arbi, Yaumal; Chandra, Arief
CIVED Vol. 9 No. 3 (2022): September 2022
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/cived.v9i3.355112

Abstract

Penelitian ini membahas tentang desain peta irigasi petak tersier L1 TA Sunua Tengah Daerah Irigasi Batang Anai II yang efektif. Penelitian ini bertujuan untuk mengungkapkan dokumen perencanaan berupa peta irigasi petak tersier L1 TA Sunua Tengah dan gambar penampang saluran. Jenis penelitian ini adalah penelitian dengan pendekatan kuantitatif. Penelitian dilakukan dengan mengumpulkan data SHP batas desa maret 2020, SHP Kab. Padang Pariaman, data bahan kontur DEM SRTM 30 m Sumatera Barat, citra satelit google earth pro, data GPS dilapangan dan data skema jaringan Irigasi Batang Anai II. Untuk selanjutnya diolah pada program aplikasi global mapper v.20 dan arcgis 10.8 mengikuti standar kriteria perencanaan irigasi KP-07. Berdasarkan data skema jaringan Irigasi Batang Anai II dan standar kriteria perencanaan irigasi KP-05 di dapatkan dimensi saluran tersier L1 TA Sunua Tengah. Hasil penelitian menunjukkan bangunan sadap tersier berada pada elevasi tertinggi yaitu 16 m, dan elevasi sawah terendah berada pada elevasi 6 m, panjang saluran tersier keseluruhan 422 m, diantaranya saluran tersier (T1-T2) yaitu 172 m, saluran tersier (T2-T3) 170 m dan saluran tersier (T3-K1) yaitu 80 m. Untuk saluran kuarter keseluruhan 1640 m diantaranya kuarter a1 yaitu 290 m, saluran kuarter b1 90 m, saluran kuarter c1 490 m, saluran d1 yaitu 440 m dan saluran kuarter e1 yaitu 330 m. Untuk jarak antara saluran pembuang dan kuarter yaitu antara 167 m hingga 290 m. 5. Untuk luasan persawahan yang tidak bisa diairi yaitu persawahan pada elevasi 17 m dan 18 m, seluas 4 Ha. Sedangkan untuk dimensi saluran tersier L1 TA Sunua Tengah Jaringan Irigasi Batang Anai II yang didapatkan yaitu b = 0.3 m, H = 0.5 m, Q = 0,0668 m3/det, V = 1.23 m/det dan kemiringan dasar saluran 0,00355.
Sumur Resapan untuk Pemenuhan Kebutuhan Air Bagi Masyarakat Kenagarian Aia Gadang Pasaman BaratSumur Resapan untuk Pemenuhan Kebutuhan Air Bagi Masyarakat Kenagarian Aia Gadang Pasaman Barat Sandra, Nevy; Andayono, Totoh; Arbi, Yaumal; Maulana, Majid
CIVED Vol. 10 No. 1 (2023): March 2023
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/cived.v10i1.387112

Abstract

Setiap tahun pertumbuhan penduduk semakin meningkat yang mengakibatkan berubahnya fungsi area lahan resapan air sebagai penopang kebutuhan air manusia dan makhluk hidup lainnya menjadi area pemukiman dan perladangan dan persawahan serta peruntukkan lainnya. Hal ini mengakibatkan berkurangnya area resapan dangkal sehingga cadangan air tanah menjadi semakin menipis. Menyikapi perubahan lahan pertanian dan DAS diperlukan solusi tepat dan jangka pendek di kalangan masyarakat pertanian untuk memenuhi kebutuhan air pertanian, yaitu memanfaatkan curah hujan daerah yang melimpah. Sumur resapan menggunakan teknologi sederhana dengan menahan laju air hujan agar tidak menjadi limpasan langsung ke drainase. Beberapa sumur resapan individual ini diolah dan disatukan kedalam bangunan penangkap (reservoir) yang nantinya bisa langsung dimanfaatkan bagi sektor produktif yaitu pelaku usaha pertanian dan perladangan serta sektor non-produktif yaitu pemakaian rumah tangga. Pelaksanaan Kegiatan Pengabdian Masyarakat ini dilaksanakan di Kenagarian Aia Gadang Kabupaten Pasaman Barat. Pembangunan konstruksi sumur resapan percontohan melibatkan masyarakat kenagarian serta monitoring pasca konstruksi dan pelatihan tenaga lokal untuk pengelolaan berkelanjutan. Konstruksi bangunan sumur serapan yang dibangun mengambil sampel 2 (dua) unit rumah yang akan dikomunalkan dengan satu buah reservoir dan disediakan pipa saluran air lengkap dengan aksesorisnya yang bisa langsung digunakan oleh masyarakat sekitar.
Analisis Kebutuhan Air Irigasi pada Daerah Irigasi Air Ketahun Kabupaten Lebong Provinsi Bengkulu Arbi, Yaumal; Rani, Thania Mustika
CIVED Vol. 10 No. 2 (2023): June 2023
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/cived.v10i2.442

Abstract

Kabupaten Lebong merupakan salah satu kabupaten produsen padi andalan di Provinsi Bengkulu. Namun, pada tahun 2021 terjadi penurunan luas lahan baku sawah yang sebelumnya 9.444 Ha menjadi 8.142 Ha. Daerah Irigasi Air Ketahun merupakan daerah irigasi dengan luas lahan fugsional sawah terluas di Kabupaten Lebong yaitu sebesar + 2070,4 Ha. Daerah irigasi ini berada di 3 (tiga) kecamatan yaitu Kecamatan Bingin Kuning, Lebong Sakti dan Amen. Daerah irigasi ini memanfaatkan air dari Bendung Air Ketahun yang terletak di Kecamatan Bingin Kuning. Tujuan dari penelitian ini adalah untuk menganalisis kebutuhan air pada Daerah Irigasi Air Ketahun dan ketersediaan air pada Bendung Air Ketahun. Metode yang digunakan adalah metode kuantitatif. Curah hujan daerah didapatkan dengan perhitungan metode Poligon Thiessen. Perhitungan kebutuhan air irigasi dilakukan sesuai Kriteria Perencanaan (KP-01). Ketersediaan air didapatkan dari perhitungan debit andalan dengan probabilitas Weibull. Hasil keluaran WEAP berupa persentase luas cakupan air yang dapat dipenuhi (Coverage). Berdasarkan hasil analisis data, didapatkan nilai kebutuhan air irigasi maksimum sebesar 4,21 m3/dt. Sedangkan ketersediaan air maksimum di Bendung Air Ketahun adalah sebesar 66,57 m3/detik. Dan berdasarkan keluaran dari program WEAP, diketahui bahwa ketersediaan air di Bendung mampu memenuhi kebutuhan air irigasi untuk melaksanakan Musim Tanam dua kali dalam setahun (MT II) dengan pola tanam Padi-Padi.
PERENCANAAN NORMALISASI SALURAN DRAINASE PRIMER BERBASIS ANALISIS HIDROLOGI DAN HIDROLIKA PADA KAWASAN UNIVERSITAS NEGERI PADANG Chalik, Adrian; Arbi, Yaumal
Jurnal Applied Science in Civil Engineering Vol 6 No 3 (2025): Jurnal Applied Science in Civil Engineering
Publisher : Teknik Sipil Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/asce.v6i3.130683

Abstract

Penelitian ini bertujuan untuk merancang normalisasi saluran drainase primer di kawasan Universitas Negeri Padang sebagai upaya mengatasi masalah genangan dan luapan air yang sering terjadi. Metode yang digunakan meliputi analisis hidrologi untuk menentukan debit banjir rencana dengan periode ulang 50 dan 100 tahun menggunakan Metode Rasional, serta analisis hidrolika dengan bantuan perangkat lunak HEC-RAS untuk mengevaluasi kinerja saluran sebelum dan sesudah normalisasi. Hasil penelitian menunjukkan bahwa saluran eksisting tidak mampu menampung debit rencana karena dimensi penampang yang kurang memadai dan kecepatan aliran yang terlalu rendah. Setelah dilakukan desain ulang penampang saluran dengan mempertimbangkan elevasi, kemiringan dasar, dan debit rencana, diperoleh peningkatan kapasitas aliran yang signifikan. Simulasi HEC-RAS pada kondisi normalisasi menunjukkan bahwa muka air berada di bawah tebing saluran, dengan kecepatan aliran memenuhi syarat minimum 0,7 m/detik. Kesimpulannya, normalisasi saluran secara teknis efektif dalam meningkatkan kapasitas dan kinerja hidraulik saluran drainase primer di kawasan kampus UNP.
PEMODELAN GENANGAN BANJIR MENGGUNAKAN HEC-RAS SUNGAI BATANG KURANJI KOTA PADANG Yendri, Farhan; Arbi, Yaumal
Jurnal Applied Science in Civil Engineering Vol 6 No 3 (2025): Jurnal Applied Science in Civil Engineering
Publisher : Teknik Sipil Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/asce.v6i3.131983

Abstract

Penelitian ini dilatar belakangi oleh frekuensi banjir yang tinggi di DAS Batang Kuranji, Kota Padang. Banjir ini disebabkan oleh luapan sungai dan curah hujan dengan intensitas tinggi yang melebihi kapasitas saluran air. Oleh karena itu, penelitian ini bertujuan untuk memodelkan genangan banjir, mengidentifikasi daerah rawan banjir, menggunakan perangkat lunak HEC-RAS. Metode yang digunakan dalam penelitian ini adalah analisis hidrologi dengan metode HSS Nakayasu untuk menghitung debit puncak dan pemodelan hidraulika menggunakan HEC-RAS 2D untuk sebaran Luasan memprediksi tinggi muka air. Data yang digunakan adalah data sekunder, termasuk data topografi (DEM) dari Badan Informasi Geospasial (BIG) dan data curah hujan harian dari tahun 2015 hingga 2024. Hasil pemodelan menunjukkan bahwa debit puncak banjir meningkat seiring dengan peningkatan kala ulang. Untuk kala ulang 50 tahun, debit puncaknya adalah 938,54 m³/s, sedangkan untuk kala ulang 100 tahun adalah 1030,77 m³/s. Simulasi hidrolika menggunakan HEC-RAS menunjukkan bahwa Sungai Batang Kuranji tidak dapat menampung debit air sebesar itu, sehingga terjadi luapan. Luas genangan banjir yang dihasilkan adalah 33,9 km² untuk kala ulang 50 tahun dan 38,6 km² untuk kala ulang 100 tahun. Berdasarkan temuan ini, disarankan untuk melakukan penelitian lanjutan yang berfokus pada normalisasi sungai dan desain tanggul sebagai langkah mitigasi banjir.
Fatigue analysis to driver of intercity in West Sumatra Province, Indonesia a case study of Padang – Bukittinggi – Payakumbuh route Ihsan, Taufiq; Arbi, Yaumal; Irawan, Andi; Sari, Intan Purnama
Jurnal Pendidikan Teknologi Kejuruan Vol 3 No 4 (2020): Regular Issue
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jptk.v3i4.16023

Abstract

Traffic accidents were common problems in the implementation of a transportation system, including in West Sumatra Province, Indonesia. Traffic accidents that occur every year were the evidence by the number of traffic accidents that occur every year. One of the causes of traffic violations that result in accidents is the risk of driver fatigue while working. This study analyzed the work-fatigue in the driver of the Intercity in Province bus (AKDP) the scope of this study was all AKDP bus drivers with the origin of Padang City, Bukittinggi City, and Payakumbuh City. Measurement and analysis of work-fatigue were using the reaction timer to light response. The results showed that increasing the number of shifts would increase driver fatigue. 33.33% of drivers run into medium level of fatigue, and 38.89% of drivers run into heavy level of fatigue. The relationship between work-fatigue and the driver's shift correlated very strongly and positively with a correlation value of r = 0.81. The owner of the company needs to take measures to improve management to minimize the level of work on this driver that has the potential to cause traffic accidents.
Co-Authors Ade Prima Rizki Adella Masya Putri Adfuza, Gloria Poppy Akmal, Ikhsanul Al-Saffar, Zaid Hazim Aldri Frinaldi Amri, Zainul Andi Irawan Ari Syaiful Arifin Ari Syaiful Rahman Arifin Ari Syaiful Rahman Arifin Ashadi Rizki Zumaro Bima, Muhammad Bima Dwitama Bunyamin Bunyamin Bunyamin Bunyamin Caronge, Muhammad Akbar Chalik, Adrian Chandra, Arief Dasman Lanin Devi Rofiani Dinda Lublyana Divani Eka Prihandana Eka Rahmatul Aidha Eltika, Rifa Fadhil Irfan Fahmi Rizal Faisal Ashar Faisal Ashar Fajri, Gilang Dwi Febri Prasetya Fithriyah Patriotika Fitra Rifwan Fitrianti, Rahma Giatman, M Hapzi Ali Hendri Sawir Herza, Habil Abdilah Iing Surya Marlis Indang Dewata Indang Dewata Intan Purnama Sari Iswandi Umar Jati Sunaryati Jaya, Ramadhansyah Putra Jevon Ona Ivena Jimmy Vernando Julien Gesta Lestari Kawaai, Keiyu Keiyu Kawaai Khairuni Delfi Anisa Linda Deflianti M. Giatman Mardizal, Jonni Maulana, Majid Mhd. Handal Hamdallah Mirshad, Emilham Mithfan Fadhli Muhammad Akbar Caronge Muhammad Irsad Mulya Gusman Mulya Gusman Mulyani, Yusni Nabawi, Rahmat Azis Nevy Sandra Nevy Sandra Nidal Zuwida Nisa Ardaneri Nizwardi Jalinus Nofriya Nofriya, Nofriya Novirman Jamarun Nsama, Willick Nurhasan Syah Nurhasan Syah Ona Pebiani Patriotika, Fithriyah Pranagung, Muhamad Iqbal Putri, Widia Rahayu, Shinta Rahman Arifin, Ari Syaiful Ramadhansyah Putra Jaya Ramadhianty, Rumia Rani, Thania Mustika Rembrandt, Rembrandt Ricky Maulana Rifa Eltika Riko Fernando Putra Rinda Dwi Utari Risky Indra Utama Risma Apdeni Rizki Aziz Rizky Indra Utama Ronald Leonardo Siregar Rumia Ramadhianty Salma Rahmadita Sani, Wan Noor Hin Mior Shinta Rahayu sri yanti lisha Sri Yanti Lisha Suci Handayani Sumbara, Bagas Surenda, Rian Syahril Syahril Syahril Syahril Syaiful Haq Taufiq Ihsan Totoh Andayono Tri Padmi Damanhuri Umar, Genius Umar, Iswandi Utama, Rizky Indra Vina Lestari Riyandini, Vina Lestari Wan Noor Hin Mior Sani Weni Jumadi Widia Putri Willick Nsama Windi Shintia Aneva Yandra, Muvi Yendri, Farhan Yonita, Wulan Alfi Yusmar, Fajri Zaid Hazim Al-Saffar Zaidina Resvita islami