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Rang Teknik Journal
Published by Universitas Muhammadiyah Sumatera Barat
ISSN : 25992081     EISSN : 25992090     DOI : -
Core Subject : Science, Engineering,
Civil Engineering, Building, Construction & Architecture Computer Science & IT Electrical & Electronics Engineering Engineering
RANG TEKNIK JOURNAL, merupakan Jurnal Penelitian dan Kajian Ilmiah yang diterbitkan Fakultas Teknik Universitas Muhammadiyah Sumatera Barat yang terbit 2 (dua) kali dalam setahun.
Arjuna Subject : -
Articles 569 Documents
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PENGARUH PENGGUNAAN LIMBAH AMPAS TEBU (BAGASSE ASH) SEBAGAI BAHAN POZZOLAN PADA BETON RINGAN Alfain, M. Hifzni; Mulyati, Ely
Rang Teknik Journal Vol 9, No 2 (2026): Vol. 9 No. 2 Juni 2026
Publisher : Fakultas Teknik Universitas Muhammadiyah Sumatera Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31869/rtj.v9i2.7907

Abstract

This study aims to analyze the effect of using sugarcane bagasse ash (BA) as a partial substitute for cement in lightweight concrete mixtures. The experimental method was conducted with variations of BA substitution at 0% (normal), 2.5%, 3.5%, and 4.5% of the cement weight. The tests included slump test, compressive strength at 7, 21, and 28 days, and split tensile strength at 28 days. The results showed that the use of BA up to 4.5% still met the workability requirements according to SNI 1972:2008 with slump values ranging from 7.2-8.2 cm. The optimal compressive strength was achieved at 3.5% BA substitution with values of 8.77 MPa (7 days), 26.31 MPa (21 days), and 28.58 MPa (28 days), representing an increase of 14.8%, 9.0%, and 7.1% respectively compared to normal concrete. Similarly, the split tensile strength reached its highest value of 2.36 MPa at 3.5% BA substitution. The study concludes that 3.5% BA substitution is the optimal proportion for producing lightweight concrete with improved mechanical properties while maintaining good workability.Keywords: compressive strength, lightweight concrete, pozzolan, split tensile strength, sugarcane bagasse ash
PENGEMBANGAN SISTEM PENGATUR SUHU BERBASIS FUZZY LOGIC PADA DISTILASI ETANOL TETES TEBU Hamed, Maulana Naseem; Hamid, Muhammad Imran; Ikhlas, Maulana Naseem; Izzati, Muhammad Afdhal
Rang Teknik Journal Vol 9, No 2 (2026): Vol. 9 No. 2 Juni 2026
Publisher : Fakultas Teknik Universitas Muhammadiyah Sumatera Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31869/rtj.v9i2.7453

Abstract

Proses distilasi etanol dari tetes tebu membutuhkan pengendalian suhu yang presisi untuk memperoleh kadar etanol yang optimal. Sistem kendali konvensional sering mengalami fluktuasi dan keterlambatan respons sehingga menurunkan efisiensi proses. Penelitian ini bertujuan merancang dan mengimplementasikan sistem pengendalian suhu berbasis logika fuzzy yang mampu meningkatkan kestabilan suhu pemanasan secara otomatis. Sensor termokopel tipe J dengan modul MAX6675 digunakan untuk mengukur suhu, sementara mikrokontroler Arduino memproses data menggunakan algoritma fuzzy dan menghasilkan sinyal PWM untuk mengatur daya pemanas melalui dimmer AC metode pemotongan sudut fasa. Evaluasi kinerja dilakukan dengan menguji sistem pada berbagai kondisi kerja distilasi yang merepresentasikan kebutuhan operasional proses. Hasil penelitian menunjukkan bahwa sistem mampu mencapai suhu target dalam 20–28 menit dengan error keadaan tunak kurang dari ±0,1°C dan overshoot yang minimal. Proses distilasi menghasilkan peningkatan volume dan kadar etanol secara signifikan, dengan rata-rata konsentrasi 33–37%. Temuan ini membuktikan bahwa pengendali logika fuzzy efektif dan adaptif untuk distilasi etanol skala laboratorium serta berpotensi untuk diterapkan pada skala industri.
PEMODELAN TRANSIEN ELEKTROMAGNETIK SUB SISTEM GITET NEW AUR DURI Vevel, Ofpria; Amin, Rahmat Rachim; Yamashika, Herris; Dwiharzandis, Aggrivina; Lovita, Wiwin
Rang Teknik Journal Vol 9, No 2 (2026): Vol. 9 No. 2 Juni 2026
Publisher : Fakultas Teknik Universitas Muhammadiyah Sumatera Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31869/rtj.v9i2.7988

Abstract

Electromagnetic transient modeling is an analytical method used to understand the transition phenomena that occur in electric power systems due to disturbances, such as short circuits, switching, and lightning. This study aims to conduct electromagnetic transient modeling on the GITET New Aur Duri subsystem to determine the characteristics of the system's response to transient conditions. The method used is system modeling using electric power system simulation software by entering network component parameters such as transmission lines, transformers, and voltage sources. The simulation results show that transient phenomena can cause rapid changes in voltage and current in a very short time. Therefore, this modeling is important to help analyze and understand system behavior so that it can improve the reliability and safety of electric power system operations on the GITET New Aur Duri subsystem.Keywords: electromagnetic transients, EMTP/ transient simulation, electric power systems, GITET New Aur Duri, power system disturbances, system modeling.
ANALISA PENGARUH PERILAKU U-TURN PADA KINERJA LALU LINTAS PADA JALAN PERKOTAAN (STUDI KASUS: JL. JENDERAL SUPRAPTO) Madani, Ananda Putera Novian Milleandra; Widyastuti, Hera
Rang Teknik Journal Vol 9, No 2 (2026): Vol. 9 No. 2 Juni 2026
Publisher : Fakultas Teknik Universitas Muhammadiyah Sumatera Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31869/rtj.v9i2.7673

Abstract

U-turn planning is regulated by several Indonesian regulations, such as the Regulation on Separator Planning Procedures No. 014/T/BNTK/1990, the Specification for Lane Separator Openings, SKSNIS-04-1990 F, and the U-Turn Planning Module (U-Turn Planning Guidelines), No. 06/BM/2005. According to these regulations, u-turns cannot be too wide or too narrow, and the number of u-turns on a single road section is also regulated, as is their position. Therefore, in this context, u-turns are not always a solution for traffic efficiency. They can be a nuisance if not properly planned. The analysis was conducted in several stages. First, a visual calculation was performed to determine the average delay caused by the u-turn. Second, an appropriate traffic model was found to obtain traffic parameters and predict future traffic events. The traffic model was determined using linear regression and selected using the chi-square test. Third, calculate the traffic parameters if the delays identified in the first stage are removed, then compare the parameters from the first stage (where delays are present) with the parameters from the third stage (where delays are absent). The initial hypothesis in this study is that delays will positively impact traffic performance. This is based on the results of previous research mentioned above. Keywords: u-turn, traffic performance, delay, traffic model, regression
PENGARUH SUHU PEMBAKARAN ABU SEKAM PADI SEBAGAI SUBTITUSI SEMEN PADA BETON SCC Nugraha, Ivan; Firdaus, Firdaus
Rang Teknik Journal Vol 9, No 2 (2026): Vol. 9 No. 2 Juni 2026
Publisher : Fakultas Teknik Universitas Muhammadiyah Sumatera Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31869/rtj.v9i2.7901

Abstract

This study analyzes the effect of combustion temperature of Rice Husk Ash (RHA) as a 10% cement substitute on the performance of Self Compacting Concrete (SCC). An experimental method was applied by burning RHA at 400°C, 500°C, and 600°C, followed by testing fresh properties (filling ability, passing ability, segregation resistance), compressive strength at 7, 14, and 28 days, as well as splitting tensile strength and modulus of elasticity at 28 days. Results confirmed all mixtures met SCC criteria (EFNARC 2005). RHA burned at 600°C yielded the highest compressive strength (18.05 MPa at 7 days; 22.29 MPa at 14 days; 39.07 MPa at 28 days), splitting tensile strength (3.41 MPa), and modulus of elasticity (22,478.25 MPa), exceeding normal concrete. However, higher combustion temperatures reduced flowability (RHA600: 55.3 cm) and passing ability (RHA600: 0.872) while enhancing segregation resistance (15 seconds). It is concluded that 10% substitution of RHA burned at 600°C significantly improves the mechanical properties of SCC despite a slight reduction in workability.Keywords: Rice Husk Ash (RHA), Combustion Temperature, Compressive Strength, Splitting Tensile Strength, Modulus of Elasticity.
PENGARUH PENGGUNAAN BIJI PLASTIK SEBAGAI SUBSTITUSI AGREGAT HALUS TERHADAP MUTU BETON RINGAN Arsyad, M. Rosihan; Mulyati, Ely
Rang Teknik Journal Vol 9, No 2 (2026): Vol. 9 No. 2 Juni 2026
Publisher : Fakultas Teknik Universitas Muhammadiyah Sumatera Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31869/rtj.v9i2.7909

Abstract

This research aims to analyze the effect of using recycled plastic granules as a partial substitute for fine aggregate on the mechanical properties of lightweight concrete, with the background of reducing the exploitation of natural aggregate and addressing plastic waste issues. The experimental method involved creating cylindrical concrete test specimens with a design strength of Fc' 25 MPa, which included normal concrete and concrete with fine aggregate substitution by plastic granules at 5%, 7.5%, and 10%. Test results showed that the optimal substitution occurred at 7.5%, which produced the highest compressive strength of 25.01 MPa at 28 days, exceeding normal concrete (24.06 MPa), while also providing optimal values for split tensile strength (2.55 MPa) and modulus of elasticity (24,958.55 MPa). While the 5% substitution still showed improvement, the 10% substitution actually caused a decrease in performance. It was concluded that the use of plastic granules as a substitute for fine aggregate up to 7.5% has the potential to produce more environmentally friendly lightweight concrete with better mechanical performance, while substitution above that level is no longer optimal.Keywords: Lightweight Concrete, Plastic Granules, Fine Aggregate Substitution, Compressive Strength, Split Tensile Strength, Modulus of Elasticity
ANALISIS PERBANDINGAN METODE PRACETAK DAN KONVENSIONAL PADA PEMBANGUNAN RUSUN PASPAMPRES IKN Tranggono, Tranggono; Chrisworo, Nadia Sukma; Verdian, Dimas Hangga Very
Rang Teknik Journal Vol 9, No 2 (2026): Vol. 9 No. 2 Juni 2026
Publisher : Fakultas Teknik Universitas Muhammadiyah Sumatera Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31869/rtj.v9i2.7492

Abstract

Dalam upaya mewujudkan pembangunan perkotaan yang ramah lingkungan dan berkelanjutan, pemilihan metode konstruksi tidak dapat sembarangan. Beton pracetak dipilih karena lebih cepat dan efisien dibandingkan metode konvensional yang mengandalkan pengecoran di lokasi. Penelitian ini bertujuan untuk membandingkan waktu, biaya, dan mutu elemen struktur menggunakan metode konvensional dan pracetak. Metode yang digunakan adalah perhitungan volume pekerjaan, serta pemantauan siklus pengecoran kedua metode, serta hasil uji beton dan daftar cacat pekerjaan. Hasil penelitian ini adalah terdapat selisih biaya sebesar Rp 3.356.048.243 atau sekitar 8,64%, di mana metode pracetak menunjukkan biaya yang lebih tinggi dibandingkan metode konvensional. Dengan selisih waktu 57 hari, metode pracetak terbukti memberikan efisiensi waktu sekitar 35%. Ditemukan adanya selisih sebanyak 164 item, atau sekitar 32% lebih banyak cacat pada struktur pracetak dibandingkan dengan metode konvensional. Kesimpulan, Signifikansi, dan Implikasi dari penelitian ini adalah meskipun lebih cepat, kualitas pemasangan pada metode pracetak tetap perlu diperhatikan agar hasil akhir tetap memenuhi standar yang diharapkan.
OPTIMALISASI PENGGANTIAN kWh METER RUSAK UNTUK MENURUNKAN SUSUT ENERGI NON TEKNIS DI PT PLN (Persero) UP3 SOLOK Firdaus, Aulia; Yulisman, Yulisman; Lovita, Wiwin
Rang Teknik Journal Vol 9, No 2 (2026): Vol. 9 No. 2 Juni 2026
Publisher : Fakultas Teknik Universitas Muhammadiyah Sumatera Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31869/rtj.v9i2.7990

Abstract

Susut energi non teknis merupakan salah satu kendala utama dalam distribusi tenaga listrik yang berdampak pada kerugian finansial perusahaan. Salah satu penyebab utama susut non teknis adalah penggunaan kWh meter rusak meliputi buram atau macet, sehingga energi yang dikonsumsi pelanggan tidak terukur secara akurat. Penelitian ini menganalisa pengaruh penggantian kWh meter rusak terhadap penurunan persentase susut energi non teknis dan menghitung potensi penyelamatan energi (kWh) di wilayah kerja UP3 Solok. Program penggantian kWh meter ini efektif memberikan saving energy untuk PT  PLN (Persero) UP3 SolokKata kunci : kWh Meter Rusak, Susut Non Teknis, Optimalisasi, PT PLN (Persero) UP3 Solok, Penyelamatan Energi.
DARI LIMBAH MENJADI KEKUATAN: REKAYASA MATERIAL KONSTRUKSI BERKELANJUTAN, MENGIDENTIFIKASI STRATEGI PENGEMBANGAN MATERIAL MAJU BERBASIS SAMPAH PLASTIK: PENDEKATAN SWOT-AHP TERINTEGRASI Moniaga, Fenny; Kafrain, I Gede Yohan; Pandey, Raymond David; Korobu, Eirene
Rang Teknik Journal Vol 9, No 2 (2026): Vol. 9 No. 2 Juni 2026
Publisher : Fakultas Teknik Universitas Muhammadiyah Sumatera Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31869/rtj.v9i2.7645

Abstract

This research aims to identify strategies for developing construction materials based on plastic waste to address environmental issues and support sustainable construction. The urgency of this research is based on the increasing volume of waste at the Sumompo landfill in Manado City, which reaches around 330 tonnes per day, as well as challenges in implementing construction materials made from plastic waste. Waste management in Manado faces complex and interrelated problems. Previous research has shown the technical potential of waste polymer bricks and concrete, but it is still constrained by industrial readiness, regulations, and public acceptance. The integration of these issues points to the urgency of research into the development of applicable plastic waste-based construction materials. Therefore, this study focuses on the utilisation of plastic waste as a construction material to reduce environmental impact and improve the sustainability of the construction sector. The analysis approach in the existing waste management system at the Sumompo landfill site, Evaluation of Plastic Waste Management and Utilisation using a SWOT-AHP-based strategy approach. SWOT analysis is used to identify internal factors (strengths and weaknesses) and external factors (opportunities and threats). Subsequently, AHP is used to prioritise implementation strategies, with the findings of the analysis showing that a multi-sector approach is needed to optimise the use of plastic waste as a construction material, taking into account industry readiness, regulations, and public acceptance as key factors for successful implementation. These findings provide strategic recommendations for the development of environmentally friendly construction materials. The results of the weighting of the strategic goals of technological feasibility, environmental impact, and policy and regulatory framework development are still high.Keywords: Sustainable Construction Materials, Plastic Waste, SWOT-AHP Analysis

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