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All Journal Informatics for Educators and Professional : Journal of Informatics BENTANG : Jurnal Teoritis dan Terapan Bidang Rekayasa Sipil Forum Mekanika Jurnal Mantik Multicience Jurnal Pengabdian Masyarakat (ABDIRA) International Journal of Social Service and Research Equivalent: Jurnal Ilmiah Sosial Teknik Jurnal Sipil Krisna Nusantara Journal of Multidisciplinary Science
Achmad Pahrul Rodji
Universitas Krisnadwipayana
Religion Aerospace Engineering Arts Humanities Biochemistry, Genetics & Molecular Biology Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Nursing Public Health Social Sciences Transportation Other

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ANALYSIS OF PILE FOUNDATION PLANNING IN THE CONSTRUCTION OF THE PKK - DEKRANASDA BUILDING IN MAKASSAR CITY GEDE SUMANTRA; ACHMAD PAHRUL RODJI; SAHAT MARTUA SIHOMBING
INTERNATIONAL JOURNAL OF MULTI SCIENCE Vol. 5 No. 01 (2025): INTERNATIONAL JOURNAL OF MULTISCIENCE - JANUARY-APRIL 2025
Publisher : CV KULTURA DIGITAL MEDIA

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Abstract

Concrete consists of cement, sand, gravel and water, with cement being the main binder that affects its quality. However, the increasing cost of raw materials and the environmental impact of lime mining and sand dredging are challenges in construction. To address this, the study proposed the use of bamboo fiber as an environmentally friendly and economical additive. This study tested the variation of 0%, 10%, and 15% pulung bamboo fiber waste on the compressive strength of concrete. The results showed that normal concrete without bamboo fiber had a compressive strength of 452 kN (fc' 26.08 MPa). The addition of 10% bamboo fiber decreased the compressive strength to 404 kN (fc' 23.32 MPa), while the addition of 15% decreased it further to 393 kN (fc' 22.68 MPa). The more bamboo fiber added, the more the compressive strength of the concrete decreased.
Analisis Penggunaan Limbah Serbuk Granit Sebagai Pengganti Sebagian Agregat Halus Pada Kuat Tekan Beton Aditya Maulana; Achmad Pahrul Rodji; Yonas Prima Arga Rumbyarso
Nusantara Journal of Multidisciplinary Science Vol. 3 No. 1 (2025): NJMS - Agustus 2025
Publisher : PT. Inovasi Teknologi Komputer

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Abstract

Beton merupakan salah satu material struktur yang banyak digunakan pada konstruksi bangunan, jembatan, jalan, dan sebagainya. Pengembangan material beton terus dilakukan, salah satunya melalui inovasi pemanfaatan limbah industri sebagai bahan substitusi agregat, dengan tujuan meningkatkan mutu beton sekaligus mengurangi dampak lingkungan. Penelitian ini bertujuan untuk menganalisis nilai kuat tekan beton dengan memanfaatkan limbah serbuk granit sebagai substitusi sebagian agregat halus sebesar variasi 0%, 9%, dan 13% dengan mutu beton f’c 25 (Mpa) setara k 300. Umur pengujian dilakukan pada 7, 14, dan 28 hari. Penelitian dilaksanakan menggunakan metode eksperimen di Laboratorium Beton PT. Pionirbeton Industri, Karawang Timur. Hasil pengujian kuat tekan rata-rata beton normal tanpa campuran limbah serbuk granit 0% menghasilkan kuat tekan beton sebesar 18,94 Mpa (7 hari), 23,16 Mpa (14 hari), 27,86 Mpa (28 hari). Beton dengan substitusi serbuk granit sebesar 9% menghasilkan kuat tekan beton sebesar 17,93 Mpa (7 hari) , 22,06 Mpa (14 hari), dan 22,23 Mpa (28 hari). Sedangkan pada variasi 13% diperoleh kuat tekan beton sebesar 17,05 Mpa (7 hari), 22,08 Mpa (14 hari), dan 22,69 Mpa (28 hari). Berdasarkan hasil tersebut, kuat tekan pada variasi 9% dan 13% menunjukkan penurunan kekuatan. Kesimpulan dengan penambahan limbah serbuk granit sebagai pengganti sebagian agregat halus mempengaruhi turunnya mutu beton yang direncanakan
Penambahan Serbuk Kayu Kamper terhadap Kuat Tekan Beton Lydia Darmiyanti; Gali Pribadi; Achmad Pahrul Rodji
Bentang : Jurnal Teoritis dan Terapan Bidang Rekayasa Sipil Vol 9 No 2 (2021): BENTANG Jurnal Teoritis dan Terapan Bidang Rekayasa Sipil
Publisher : Universitas Islam 45

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33558/bentang.v9i2.2861

Abstract

Sawdust waste from the furniture industry should be considered. Nowadays, the increased demand for furniture is in line with the increase in sawdust waste produced. Therefore, it is necessary to make use of sawdust to protect environment. An alternative use is the addition of sawdust as the concrete mixture. Cellulose and hemicellulose compounds are compounds contained in wood powder, where these compounds can provide additional bonding between particles in the cement and sand mixture in concrete. Therefore, concrete can be stronger as well as more water resistant, hence it can be used for a specific purpose in constructions. This study aims to analyze the compressive strength of concrete due to the addition of sawdust as an organic fiber in the concrete mixture with the percentage of 0.25%, 0.50%, 0.75% and 1% as substitution of sand. Organic fibers as additives in concrete are being developed until recently. The proposed concrete was 25 MPa quality. Result showed the increase in the compressive strength of concrete by 0.98% in 1% wood powder mixed at 28 days of concrete age.
Pelatihan Komposting Teknologi Tepat Guna dalam Reduksi Sampah Organik Kampus Gita Puspa Artiani; Achmad Pahrul Rodji; Sukadi Sukadi; Indriasari Indriasari; Ajat Zatmika; Sutaryo Sutaryo; Reny Savitri; Zefri Zefri; Nazaruddin Khuluk; Rishki Nugraha; Rifqi Maulana; Azka Iqbaal Pratama; Gea Angkasa Irianto Nugroho
Jurnal Pengabdian Masyarakat (ABDIRA) Vol 6, No 3 (2026): Abdira, Juli
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/abdira.v6i3.2182

Abstract

The accumulation of organic waste in urban areas triggers overcapacity at the Sumur Batu Landfill and causes air pollution due to open burning. This community service activity aims to educate the university community on reducing leaf waste at the source through a composting pilot project at the Faculty of Engineering, Universitas Krisnadwipayana. The methods applied encompass a sociotechnological approach consisting of community education, technical composting training guided by speakers from the North Bekasi District Environmental Health Department (UPTD LH), and the diffusion of science and technology. The starter formulation utilized a mixture of 1 cap of EM4, 1 cap of molasses, and 10 liters of fresh water, followed by an anaerobic fermentation process for 25 days. The results demonstrated a successful collaborative integration of lecturers and students across multiple departments (Civil Engineering, Mechanical Engineering, Architecture, and Urban and Regional Planning) in producing ready-to-use organic fertilizer applied to the campus's productive trees. In conclusion, managing waste independently from its source is crucial as a tactical solution to reduce regional ecological burdens while creating a clean, healthy, and sustainable campus ecosystem.
Upaya Konservasi Lingkungan Kampus melalui Gerakan Penanaman Pohon untuk Mewujudkan Green Campus Achmad Pahrul Rodji; Gita Puspa Artiani; Sukadi Sukadi; Indriasari Indriasari; Ajat Zatmika; Sutaryo Sutaryo; Nazaruddin Khuluk; Tiara Andiani; Aisyahqi Ramadhani Putri Kurniawan
Jurnal Pengabdian Masyarakat (ABDIRA) Vol 6, No 2 (2026): Abdira, April
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/abdira.v6i2.1503

Abstract

The increase in pollution and micro temperatures within the Universitas Krisnadwipayana (UNKRIS) campus environment requires concrete solutions through the optimization of green open spaces. This community service aims to reforest the campus while strengthening local food security by planting productive trees. The methods used include community education on environmental conservation, planting technique training, and science and technology diffusion through the planting of 50 Multipurpose Tree Species (MPTS) seedlings, such as miki avocado, arumanis mango, breadfruit, citra water apple, and citrus. The results show a significant increase in academic community awareness and improvement in the campus's physical environmental quality. Collaboration with agricultural experts ensures the sustainable growth of the plants. In conclusion, the integrated planting of shaded and productive trees creates a cooler and more food-independent campus ecosystem. This activity is vital as a pilot model for educational institutions in supporting the sustainable development agenda and collective responsibility for earth's sustainability.
Klasifikasi Keparahan Kecelakaan Lalu Lintas Menggunakan Machine Learning Darusman Darusman; Achmad Pahrul Rodji
INFORMATICS FOR EDUCATORS AND PROFESSIONAL : Journal of Informatics Vol. 10 No. 1 (2025): INFORMATICS FOR EDUCATORS AND PROFESSIONAL : JOURNAL OF INFORMATICS (Juni 2025
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat Universitas Bina Insani

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51211/itbi.v10i1.3354

Abstract

Traffic accidents are one of the main causes of injury and death in various countries. Various factors such as the number of vehicles involved, lighting conditions, type of intersection, and the underlying cause of the accident contribute to the severity of the accident. This research aims to classify the severity of traffic accidents using Random Forest, Decision Tree, Naïve Bayes, and Support Vector Machine (SVM) algorithms. The dataset used was obtained from Kaggle with various relevant categorical and numerical features. The research methodology includes data collection and model evaluation. Model evaluation is carried out using accuracy, precision, recall, and F1-score. The research results show that Random Forest provides the highest accuracy of 84%, followed by Naïve Bayes (82%), Decision Tree (77%), and SVM (71%). The SMOTE technique improves the performance of some models by improving data balance, but also increases the risk of overfitting. Meanwhile, applying PCA helps improve model efficiency by reducing dimensions without losing important information. With the model that has been developed, this prediction system has the potential to be used in road safety analysis and to support decision making in mitigating traffic accidents
Analisis Smart Pole Berbasis IoT Untuk Mitigasi Kecelakaan Lalu Lintas Di Jalan Raya Achmad Pahrul Rodji; Darusman Darusman; Anung Wicaksono; Dwi Kuswarno
INFORMATICS FOR EDUCATORS AND PROFESSIONAL : Journal of Informatics Vol. 10 No. 2 (2025): INFORMATICS FOR EDUCATORS AND PROFESSIONAL : JOURNAL OF INFORMATICS (Desember
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat Universitas Bina Insani

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51211/itbi.v10i2.3561

Abstract

The highway transportation industry faces significant challenges in managing road safety, especially related to monitoring dynamic environmental and traffic conditions. Systems relying on manual inspection or limited surveillance often fail to respond quickly to dangerous situations. This research aims to address these challenges by developing and analyzing the implementation of an IoT-based Smart Pole system for mitigating road accidents. The system integrates various sensor devices such as CCTV, air quality sensors, weather sensors, and warning speakers, all connected through a LAN network and supported by solar panels. The research findings show that the Smart Pole system can monitor air quality (PM2.5, PM10), weather conditions, and other traffic-related factors in real-time, enabling traffic managers to provide early warnings and rapid responses to potential hazards. With the application of Power over Ethernet (PoE) and solar panels, the system can operate efficiently without relying on external energy sources. The use of Face Analytics allows for the detection of risky behavior from drivers, while audio and visual warnings enhance driver awareness. The implementation of IoT-based Smart Pole technology can improve road safety by providing real-time data that is useful for traffic managers and road users, and it significantly contributes to the development of safer and more efficient smart city concepts.
Analisis Perencanaan Kebutuhan Lift Gedung Fakultas Ekonomi Universitas Krisnadwipayana Yuel Frida Adi Pranama; Achmad Pahrul Rodji; Nusa Setiani
Nusantara Journal of Multidisciplinary Science Vol. 4 No. 3 (2026): NJMS - Oktober 2026
Publisher : PT. Inovasi Teknologi Komputer

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Abstract

Perkembangan teknologi dan kebutuhan mobilitas vertikal mendorong penggunaan lift di gedung bertingkat. Gedung Fakultas Ekonomi UNKRIS masih menggunakan tangga, yang kurang efisien bagi pengguna. Dengan mempertimbangkan kebutuhan fungsional dan kenyamanan pengguna. Penelitian ini bertujuan untuk menentukan kapasitas serta jumlah lift yang optimal untuk Gedung Fakultas Ekonomi UNKRIS. Metode yang digunakan dalam penelitian ini meliputi pengamatan langsung terhadap fungsi gedung serta pengukuran luas bangunan gedung, disertai pengumpulan data pendukung. Penentuan jumlah kebutuhan lift dipengaruhi oleh faktor-faktor seperti jumlah populasi gedung, beban puncak, waktu tempuh perjalanan bolak balik, waktu tunggu, kapasitas angkut dan perhitungan kebutuhan daya listrik. Berdasarkan hasil penelitian menunjukkan bahwa lift dengan kapasitas 750 kg dengan kecepatan 1 m/s merupakan pilihan paling efisien untuk gedung kampus 4 lantai. Lift ini menunjukkan waktu tunggu tercepat sebesar 67 detik, tingkat keterisian tertinggi 85,7%, serta konsumsi daya listrik paling rendah yaitu 5,59 kW. Hal ini menjadikan lift kapasitas 750 kg sebagai solusi optimal dalam hal kinerja dan efisien energi.
Geometric Optimization of Mine Haul Roads Based on Cycle Time and Rolling Resistance Analysis to Improve Haul Truck Productivity Achmad Pahrul Rodji; Indriasari Indriasari; Rifki Hilmansyah
Equivalent: Jurnal Ilmiah Sosial Teknik Vol. 8 No. 5 (2026): Equivalent: Jurnal Ilmiah Sosial Teknik
Publisher : Politeknik Siber Cerdika Internasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59261/jequi.v8i5.462

Abstract

Background: Mine haul road conditions directly influence haul truck speed, cycle time, and operational productivity. At Sector 7 of PT Asmin Bara Bronang, overburden haulage had not met the production target, and several road segments did not satisfy the geometric design criteria specified in Ministerial Decree No. 1827 K/30/MEM/2018. Objective: This study evaluates the existing haul road geometry and estimates the potential productivity improvement achievable by redesigning deficient road segments. Methods: A quantitative descriptive-evaluative approach was applied to 38 road segments along a 3,038 m haul route. Field measurements covered road width, grade, superelevation, crossfall, rolling resistance, and the cycle time of the Komatsu HD785-7 haul truck. Haul truck performance under idealized geometric conditions was simulated using TALPAC. Results: The required improvements included increasing the average width by 4.56 m on deficient straight segments and by 5.10 m on deficient curved segments, reducing the average grade by 1.5%, increasing the average superelevation by 2.7%, establishing a 2% crossfall, and reducing rolling resistance to 2.45%. Productivity increased from 92.627 to 124.564 bcm/h. Conclusion: Bringing haul road geometry into compliance with the applicable design criteria can substantially improve haulage efficiency, with an estimated productivity gain of 31.94 bcm/h.
Co-Authors Abda Abda Aditya Maulana Ahmad Supriyatna Aisyahqi Ramadhani Putri Kurniawan Ajat Zatmika Al Muzamil Ali Khumaidi Anung Wicaksono Azka Iqbaal Pratama DANIEL SIMATUPANG Darusman Darusman Darusman Darusman Deby Marc Handoyo DEDY RAMADHAN Dwi Kuswarno FADLUL ADLI Ferry Anggriawan Gali Pribadi Gea Angkasa Irianto Nugroho GEDE SUMANTRA Gita Puspa Artiani Hudzaifah Al jihad Indriasari Indriasari Indriasari Indriasari Lydia Darmiyanti Mochammad Risky Ramadhan Muhammad Fahmi Tri Susilo Nazaruddin Khuluk Novi Ruhviyanti Novi Rukhviyanti Novrihan Tanjung Nusa Setiani PANDU ARIFIN Parlindungan Panjaitan Qawi Ayadillah Hariyanto Reny savitri Rifki Hilmansyah Rifky Arrahman Rifqi Maulana Rishki Nugraha Sahat Martua Sihombing Sahat Martua Sihombing Sepryhatin Dioputra Sukadi Sukadi Sukadi Sutaryo Sutaryo Tiara Andiani Wargijono Utomo Yonas Prima Arga Rumbyarso Yuel Frida Adi Pranama Zefri Zefri