Garuda - Garba Rujukan Digital

KINERJA PROTOTIPE RODA PENGGERAK BERSIRIP GANDA PADA LAHAN SAWAH GAMBUT Susanto, Herdi; Darsan, Herri; Jayadi, Farid; Masykur, Masykur; Husin, Zakir; Ali , Syurkarni
Jurnal Rekayasa Mesin Vol. 15 No. 3 (2024)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v15i3.1733

Agricultural technology to support the agricultural sector, especially peaty paddy fields, should be developed, because peat land with a thickness of less than one meter has been recommended for rice crops. supported by a potential peatland area of up to 21 million Ha or 10.8% of Indonesia's land area. Currently, peatland farming communities use sickles to harvest rice and hoes to cultivate the land. So far, hand tractor finned wheel drive technology has been widely used for cultivating wet paddy fields, whereas in conditions of peaty paddy fields it has not been able to be used because of the high level of sinkage and wheel slip, for this reason a new model of wheel is needed that is capable of working in peaty paddy fields. The aim of the research is firstly to find the right model of driving wheel for use in peaty paddy fields, secondly a prototype driving wheel for peaty paddy fields, and thirdly to experimentally test the driving wheel. Research results (1) prototype with a driving wheel diameter of 35 cm and the number of fins is 8 for the standard fin type and for the double fin type the driving wheel diameter is 40 cm with 4 vertical arc fins, which are placed on the surface of the driving wheel. (2) Comparison with the same type of loading shows that the double fin type drive wheel has a relatively smaller level of wheel loading (around 20%) when compared to the standard type drive wheel. (3) The sinkage level of the standard type drive wheel has a smaller sinkage (around 10%) compared to the double finned wheel type, in tests with the same type of loading. test loads for wheels are 20 kg, 40 kg and 60 kg. The double fin type drive wheel is good for use in peaty paddy fields.

Desain Alat Ukur Regangan Menggunakan Strain Gauge Berbasis Arduino Uno Susanto, Herdi; Husen, Zakir; Marbun, Mahmuddin; Hanif, Hanif; Mawardi, Mawardi; Hasdi, Syaiful; Ichwan, Hasbi Randi
Jurnal Mekanova : Mekanikal, Inovasi dan Teknologi Vol 11, No 1 (2025): April
Publisher : universitas teuku umar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35308/jmkn.v11i1.11351

Industrial applications, machinery and engineering construction, strain is the most important value for determining the selection of suitable and appropriate materials for designing machine elements, with advances in strain measurement analysis technology on Arduino microcontroller-based structures it is very possible to use it. Several studies have succeeded in measuring strain using an Arduino Uno-based strain gauge. Based on the above, it is possible to design a strain measuring tool using an Arduino Uno-based strain gauge to support students' practicum process, so in this research a design of a strain measuring tool using an Arduino Uno-based strain gauge was carried out. The research results have completed the design of a strain measuring tool using an Arduino Uno based strain gauge and can be used on a student practicum scale. The results of tests carried out on Nako iron rods show that there is an appropriate relationship between the load applied, the strain measured and the stress produced. The results of the tests carried out measured the amount of strain produced at various loads such as at a load of 1,000 grams the strain was measured at 0.5345 and a stress of 106.9 MPa. Meanwhile, at a load of 2,000 grams, the strain reached 0.573 and the stress was 114.6 Mpa.

KINERJA PROTOTIPE RODA PENGGERAK BERSIRIP GANDA PADA LAHAN SAWAH GAMBUT Susanto, Herdi; Darsan, Herri; Jayadi, Farid; Masykur, Masykur; Husin, Zakir; Ali , Syurkarni
Jurnal Rekayasa Mesin Vol. 15 No. 3 (2024)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v15i3.1733

Agricultural technology to support the agricultural sector, especially peaty paddy fields, should be developed, because peat land with a thickness of less than one meter has been recommended for rice crops. supported by a potential peatland area of up to 21 million Ha or 10.8% of Indonesia's land area. Currently, peatland farming communities use sickles to harvest rice and hoes to cultivate the land. So far, hand tractor finned wheel drive technology has been widely used for cultivating wet paddy fields, whereas in conditions of peaty paddy fields it has not been able to be used because of the high level of sinkage and wheel slip, for this reason a new model of wheel is needed that is capable of working in peaty paddy fields. The aim of the research is firstly to find the right model of driving wheel for use in peaty paddy fields, secondly a prototype driving wheel for peaty paddy fields, and thirdly to experimentally test the driving wheel. Research results (1) prototype with a driving wheel diameter of 35 cm and the number of fins is 8 for the standard fin type and for the double fin type the driving wheel diameter is 40 cm with 4 vertical arc fins, which are placed on the surface of the driving wheel. (2) Comparison with the same type of loading shows that the double fin type drive wheel has a relatively smaller level of wheel loading (around 20%) when compared to the standard type drive wheel. (3) The sinkage level of the standard type drive wheel has a smaller sinkage (around 10%) compared to the double finned wheel type, in tests with the same type of loading. test loads for wheels are 20 kg, 40 kg and 60 kg. The double fin type drive wheel is good for use in peaty paddy fields.

Analisis Temporal Perubahan Senyawa Dan Indikasi Korosi Awal Pada Beton Bertulang Di Lingkungan Air Laut Buatan Menggunakan FTIR Susanto, Herdi; Jayadi, Farid; Husran, Yuza; Hanif, Hanif; Mawardi, Mawardi; Zulkifli, Zulkifli; Us, Khairol Mizan
VOCATECH: Vocational Education and Technology Journal Vol 7, No 2 (2025): December
Publisher : Akademi Komunitas Negeri Aceh Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38038/vocatech.v7i2.252

AbstractMarine environments are highly aggressive to reinforced concrete due to chloride ions that accelerate chemical degradation and initiate reinforcement corrosion, potentially causing early depassivation of steel. This study investigates the temporal evolution of chemical compounds in reinforced concrete and identifies early corrosion-related changes induced by artificial seawater exposure using Fourier Transform Infrared Spectroscopy (FTIR). Structural-grade reinforced concrete specimens were exposed to artificial seawater with a salinity of approximately 3.5% NaCl under partial immersion conditions, where half of each specimen was immersed while the remaining half was exposed to laboratory air. The exposure period lasted 30 days, with surface concrete powder samples collected at selected intervals. FTIR analysis was conducted to monitor changes in key functional groups, including –OH (Ca(OH)₂), CO₃²⁻ (CaCO₃), calcium silicate hydrate (C–S–H), and free silica. The results indicate progressive carbonation from the early stages of exposure, evidenced by a gradual reduction in –OH intensity and a corresponding increase in carbonate peaks, reflecting a decrease in concrete alkalinity. A notable increase in –OH intensity during the exposure period suggests enhanced moisture absorption, which may facilitate chloride ion diffusion. Although C–S–H phases persisted throughout the test duration, the appearance of free silica at later stages indicates the onset of hydration matrix degradation. These findings demonstrate that progressive carbonation combined with moisture absorption under partial immersion conditions can accelerate early reinforcement depassivation and potentially shorten the service life of reinforced concrete in artificial marine environments.Keywords:Reinforced concrete, corrosion, FTIR, carbonation, artificial seawater AbstrakLingkungan laut merupakan salah satu kondisi paling agresif terhadap beton bertulang karena keberadaan ion klorida yang dapat mempercepat degradasi kimia beton serta inisiasi korosi tulangan, sehingga berpotensi menyebabkan depasivasi lapisan pelindung baja tulangan pada tahap awal umur layan struktur. Penelitian ini bertujuan untuk menganalisis perubahan temporal senyawa kimia beton bertulang dan mengidentifikasi indikasi awal korosi akibat paparan air laut buatan menggunakan metode Fourier Transform Infrared Spectroscopy (FTIR). Spesimen beton bertulang bermutu struktural dipaparkan pada lingkungan air laut buatan dengan salinitas ±3,5% NaCl, di mana setengah panjang spesimen direndam dalam air laut buatan dan setengah lainnya terpapar udara. Pengamatan dilakukan selama 30 hari dengan pengambilan sampel serbuk permukaan beton pada hari ke-9, 13, 15, 17, 20, 21, 24, 27, dan 30. Analisis FTIR digunakan untuk memantau perubahan intensitas dan keberadaan gugus fungsional utama, meliputi –OH (Ca(OH)₂), CO₃²⁻ (CaCO₃), fase hidrasi silikat (C–S–H), dan silika bebas. Hasil penelitian menunjukkan terjadinya karbonasi progresif sejak tahap awal paparan, yang ditandai dengan penurunan bertahap intensitas puncak – OH (Ca(OH)₂) dan peningkatan puncak karbonat (CO₃²⁻, CaCO₃), sehingga mengindikasikan penurunan alkalinitas beton. Lonjakan signifikan intensitas –OH pada hari ke-17 menunjukkan penyerapan kelembapan yang tinggi, yang berpotensi mempercepat difusi ion klorida ke dalam beton. Fase C–S–H masih terdeteksi sepanjang periode pengujian, namun kemunculan silika bebas pada akhir paparan mengindikasikan awal degradasi matriks hidrasi. Temuan ini menegaskan bahwa kombinasi karbonasi progresif dan penyerapan kelembapan pada kondisi perendaman parsial dapat mempercepat indikasi depasivasi tulangan dan berpotensi menurunkan umur layan beton bertulang di lingkungan laut buatan.Kata Kunci: Beton bertulang, korosi, FTIR, karbonasi, air laut buatan

Integrating Internet of Things Technology to Enhance Highland Vegetable Productivity : A Systemic Review with Empirical Evidence from Aceh Tengah, Indonesia Ihsan, Muhammad; Susanto, Herdi; Joli Supardi; Nuzuli Fitriadi
Jurnal Inotera Vol. 11 No. 1 (2026): January-June 2026
Publisher : LPPM Politeknik Aceh Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31572/inotera.Vol11.Iss1.2026.ID614

Global food security challenges necessitate transformative approaches to enhance agricultural productivity, particularly in highland regions facing multiple production constraints. This systematic literature review examines the potential of Internet of Things (IoT) technology integration to enhance productivity of highland vegetables (potato, cabbage, and carrot) in Aceh Tengah District, Indonesia. A critical agricultural region at 1,000-2,600 m.a.s.l. Following PRISMA guidelines, we analyzed peer-reviewed publications (2020-2025) on IoT applications in vegetable production, synthesizing evidence from successful implementations across diverse geographical contexts. Empirical evidence demonstrates that precision agriculture systems incorporating soil moisture sensors, nutrient monitoring, weather stations, and disease detection algorithms achieve productivity increases of 10-20% while reducing water consumption by 20-30% and input costs by 13%. However, IoT adoption in Indonesian highland agriculture remains below 5%, constrained by infrastructure limitations, digital literacy gaps, and economic barriers. This review identifies six critical research gaps and proposes a contextualized framework for IoT implementation adapted to smallholder farming systems in highland Indonesia. The framework addresses technological, socioeconomic, and institutional dimensions essential for sustainable digital transformation of highland agriculture. A pilot project framework is proposed targeting productivity enhancement, resource efficiency, and capacity building for sustainable implementation in Aceh Tengah's unique agroecological context

Analisis Senyawa Pemicu Korosi pada Beton Bertulang Terpapar Klorida Menggunakan FTIR Susanto, Herdi; Husin, Zakir; Ali, Syurkarni; Tripoli, Bambang; Yufrizal, Yufrizal
Jurnal Mekanova : Mekanikal, Inovasi dan Teknologi Vol 11, No 2 (2025): Oktober
Publisher : universitas teuku umar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35308/jmkn.v11i2.14048

Degradasi beton bertulang akibat penetrasi ion klorida merupakan salah satu penyebab utama penurunan durabilitas struktur di lingkungan laut. Penelitian ini bertujuan menganalisis perubahan kimia pada pasta semen beton bertulang sebelum dan sesudah direndam dalam air laut buatan melalui pendekatan Fourier Transform Infrared Spectroscopy (FTIR). Spesimen beton bertulang direndam dalam larutan NaCl 3,5% selama 15 dan 30 hari untuk mengevaluasi evolusi gugus fungsi yang berkaitan dengan hidrasi semen, karbonasi, dan pembentukan senyawa klorida terikat. Hasil FTIR menunjukkan bahwa pada kondisi awal, karakteristik spektrum didominasi oleh gugus O–H, Si–O, dan CO₃²⁻ tanpa adanya indikasi interaksi dengan klorida. Setelah 15 hari perendaman, terjadi penurunan intensitas pita O–H, modifikasi vibrasi Si–O, serta munculnya pita baru pada rentang 600–800 cm⁻¹ yang mengindikasikan tahapan awal pembentukan senyawa aluminat–klorida. Pada hari ke-30, perubahan spektral semakin jelas dengan penguatan pita karbonat, pergeseran puncak Si–O, dan peningkatan intensitas pita 460–750 cm⁻¹ yang kompatibel dengan pembentukan Friedel’s salt. Temuan ini menunjukkan bahwa FTIR mampu mendeteksi perubahan kimia mikrostruktur secara bertahap akibat penetrasi klorida, mulai dari modifikasi C–S–H hingga terbentuknya klorida terikat. Dengan demikian, FTIR terbukti efektif sebagai metode identifikasi dini proses degradasi kimia beton bertulang di lingkungan laut.

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