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All Journal Jurnal Teknik Composite Journal Jurnal Teknik Sumber Daya Air Research Review: Jurnal Ilmiah Multidisiplin Indonesian Journal of Construction Engineering and Sustainable Development International Journal of Education, Vocational and Social Science
Barry Yusuf Labdul
Universitas Negeri Gorontalo
Humanities Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Mechanical Engineering Social Sciences Other

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Analisis Kehilangan Air Pada Jaringan Utama Daerah Irigasi Toraut Muhamad Rizadi Laili; Barry Yusuf Labdul; Rawiyah Husnan
Research Review: Jurnal Ilmiah Multidisiplin Vol. 4 No. 1 (2025): Research Review: Jurnal Ilmiah Multidisiplin (Februari 2025 - Juli 2025)
Publisher : Transbahasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54923/researchreview.v4i1.180

Abstract

The agricultural sector plays a crucial role in realizing Asta Cita's vision of food security, one of which is through the optimization of the Toraut Dam in Toraut Utara Village. However, increasing water demand for rice field intensification and expansion, alongside limited irrigation water supply, necessitates efficient irrigation system management. This research aims to analyze water loss in the distribution of irrigation networks in the Toraut Irrigation Area. The study used primary data (cross-sectional geometry and canal flow velocity measured using the surface buoy method) and secondary data (climatological records, irrigation network maps, and supporting documents). The analysis included calculating flow discharge, water loss due to evaporation using the Penman method, seepage, irrigation efficiency, and water loss in each channel segment. Results showed the highest discharge in the primary channel was at SPKr I upstream (5.586 m³/s), and the lowest was at SPKr 7 downstream (0.136 m³/s). In the secondary channel, the highest discharge was found at Secondary Tumpah upstream (0.895 m³/s), while the lowest was at Secondary Dumara downstream (0.043 m³/s). The highest efficiency in the primary channel was at SPKn (98.55%), while the lowest was at SPKr 6 (70.15%). In the secondary channels, the highest efficiency was at Secondary Tongot 2 (97.76%), and the lowest at Secondary Dumara (35.87%). The greatest water loss in the primary channel occurred at SPKr 6 (29.85%), and the least at SPKn (1.45%). For secondary channels, the greatest water loss occurred in Secondary Dumara (64.13%) and the least in Secondary Tondait (0.75%).
Analisis Pengaruh Perubahan Kondisi Lahan terhadap Debit Sungai Menggunakan Program HEC-HMS (Studi Kasus DAS Alo, Kabupaten Gorontalo) Satrio Fitrawan Maku; Barry Yusuf Labdul; Rawiyah Husnan
Research Review: Jurnal Ilmiah Multidisiplin Vol. 4 No. 1 (2025): Research Review: Jurnal Ilmiah Multidisiplin (Februari 2025 - Juli 2025)
Publisher : Transbahasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54923/researchreview.v4i1.184

Abstract

The Alo Watershed (DAS Alo) is a-subwatershed of the Limboto Watershed loacted in Gorontalo Regency, covering an area of 210,495 km2. Frequent flooding in the Alo Watershed has caused significant damage, with various contributing factors including high rainfall, low public awareness of environmental issues, and sparse vegetation cover. To assess the impact of land condition changes on river discharge in the Alo Watershed, the Hydrologic Engineering Centre - Hydrologic Modelling System (HEC – HMS) program was employed, utilizing the Soil Conservation. The analysis using HEC-HMS program revealed that the discharge under 2019 land use conditions was higher than that projected in the 2032 Regional Spatial Plan (RTRW). To reduce future discharge, land use management was simulated by decreasing certain land uses, which were reallocated to other types of use, while adhering to the 2032 RTRW guidelines. The simulation of land use management under Scenario 1, with a return period of T years, succeeded in reducing flood discharge by 8,65%-14,67% compared to the 2019 conditions. Scenario 2 achieved a reduction of 8,43%-14,70%. Both scenario effectively reduced flood discharge beyond the 2019 conditions, indicating the potential of these strategies to mitigate future flood risks.
Analisis Variasi Abu Sekam Padi sebagai Bahan Pengganti Sebagian Semen terhadap Kuat Tekan Beton SCC (Self Compacting Concrete) I Wayan Suardita; Kasmat Saleh Nur; Barry Yusuf Labdul
Research Review: Jurnal Ilmiah Multidisiplin Vol. 5 No. 1 (2026): Research Review: Jurnal Ilmiah Multidisiplin (Februari 2026 - Juli 2026)
Publisher : Transbahasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54923/researchreview.v5i1.310

Abstract

Self-Compacting Concrete (SCC) is a type of concrete that can self-compact without the need for mechanical vibration, exhibiting excellent flowability. Rice husk ash is a residue produced from the combustion of rice husk ash and contains a high amount of amorphous silica, making it suitable as a partial substitute for cement in concrete mixtures as well as a filler material. Therefore,the utilization of rice husk ash in SCC presents an attractive alternative, particularly in the context of enviromentally friendly and sustainable constuction. This research aimed to analyze the effect  of using rice husk ash as a partial replacement for cement on the characteriscs and compressive strength of SCC. As experimental method was employed by preparing test specimens with rice husk ash  variations of 0%, 7,5%, 10%, and 12,5% by weight of cement. Based on the results of SCC characteristic tests, all variations exhibited good flowability, viscosity, and segregation resistance. However, the 7,5% and 12,5% variations showed poor passing ability (category III). The highest compressive strength was achieved at a 10% variation, reaching 39,65 MPa, which represented a 31,04% increase compared to SCC without rice husk ash (30,19 MPa). The 7,5% and 12,5% variations increased the compressive strength by 24,08% (37,46 MPa) and 6,46% (32,14 MPa), respectively compared to the rice husk ash.
Co-Authors Aryati Alitu Dwi, Dwi Ramadan Eka Saputri Eka Endrizal Rahman Iyan Fatmawati Abdul Razak, Fatma Hamsu Abdul Gani I Wayan Suardita Indarwati, Syukron Kaharu, Aan Nurhandiat Kamal Purnomo Miu Kamal Purnomo Miu Karim, Meldiana Kasmat Saleh Nur Laude, Evita Verent Muhamad Rizadi Laili Nani, Elma Nani, Elma Tiani Olii, Rachma Ditha Pandjab, Nabil Raihan Purnamawati Purnamawati Putri, Putri Syaferina Djafar Rawiyah Husnan Sallim, Muhammad Riza S. Salsadilla, Namira Satrio Fitrawan Maku Tambipi, Nur Atika Usu, Zuhriyah Raihanah Utiarahman, Dinar Fauziah