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Topik Populer: Tidal Energy Stunting Reduction Mo'odelo Governance Danau Limboto Circular Bioeconomy
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The Integrated Spatial Assessment of The Flood Hazard Using AHP-GIS: The Case Study of Gorontalo Regency

Indonesian Journal of Geography doi:10.22146/ijg.59999

Mapping of potential flood hazards is an important element in ensuring proper planning of development and implementing flood disaster mitigation efforts for flooded areas. Therefore, this study was conducted to assess the regional-scale flood hazard areas in Gorontalo District using an AHP-GIS integration technique with the focus on factors such as annual rainfall, elevation, slope, soil type, distance to the water bodies, and land-use. The flood hazard was divided into five classes, ranging from very low to very high, and 13.61% of the total area in Gorontalo Regency is classified as either high or very high. Moreover, the distribution of the hazard was verified and 65 events were recorded to have a level of 90.7% and this indicates the model is reliable to assess flood hazard. The results showed GIS-AHP integration is a promising method to accurately predict flood-hazard areas, especially in those with limited data.

Muhammad Ramdhan Olii, Aleks Olii, Ririn Pakaya
Artikel Jurnal 2021 Q3 SINTA 1 OA
SDG 11
24 sitasi
8

Sustainable Self-Compacting Concrete: The Role of Limestone Powder as A Cement Replacement

JURNAL TEKNIK SIPIL CENDEKIA (JTSC) doi:10.51988/jtsc.v7i2.505

The excessive use of cement in concrete production contributes significantly to environmental impacts, particularly CO? emissions. One potential solution is the partial replacement of cement with limestone powder in self-compacting concrete (SCC). This study aimed to investigate the effect of limestone powder as a partial cement replacement on the fresh properties and compressive strength of SCC. Limestone powder was used at replacement levels of 0%, 6%, 9%, 12%, and 15% by weight of cement. The fresh properties of SCC were evaluated using slump flow, V-funnel, and L-box tests, while compressive strength tests were conducted to assess hardened performance. The results showed that SCC mixtures containing up to 9% limestone powder satisfied the SCC workability requirements. The optimum performance was achieved at 6% limestone powder replacement, which produced a slump flow diameter of 600 mm and compressive strength of 29.58 MPa, exceeding the design strength target of 25 MPa. Higher replacement levels reduced both workability and compressive strength, with the 15% mixture failing to meet acceptable performance criteria. These findings indicate that limestone powder can be effectively utilized as a sustainable partial cement replacement in SCC at moderate replacement levels while maintaining satisfactory fresh and hardened properties.

Muhammad Ramdhan Olii, Andi Aswin Rahman, Nasir Bumulo, Rahman Abdul Djau, Ilyas Ichsan
Jurnal Nasional Terakreditasi 2026 SINTA 4 OA
SDG 9SDG 12
1 sitasi
1

TINJAUAN SISTEMATIS KOMPARASI PCI DAN VISI KOMPUTER UNTUK EVALUASI KERUSAKAN JALAN

RADIAL: Jurnal Peradaban Sains, Rekayasa dan Teknologi doi:https://doi.org/10.37971/radial.v14i1.577

This study aims to conduct a comparative analysis of the conventional Pavement Condition Index (PCI) method and a computer vision-based approach in evaluating road pavement damage in Indonesia. The method used was a Systematic Literature Review (SLR) based on the PRISMA 2020 guidelines. Data were collected through a structured search of the Scopus and Google Scholar databases, identifying 27 selected studies that met the inclusion criteria. The results show that PCI has high accuracy and is internationally recognized for evaluating 20 types of damage, but it requires significant time, cost, and manpower and involves subjectivity. Conversely, computer vision using deep learning algorithms can provide fast, objective, and scalable results with 76–95% accuracy, although it is still limited to specific types of damage and is influenced by environmental factors. This study recommends a hybrid approach that integrates both methods, along with the use of low-cost technologies, such as smartphones and GIS-based UAVs, to support more efficient road infrastructure maintenance in Indonesia.

Andi Sahrul Hidayat, Ilyas Ichsan, Nasir Bumulo
Artikel Jurnal 2026 SINTA 4 OA
SDG 9
0 sitasi
1

INDENTIFIKASI FAKTOR-FAKTOR MEMPENGARUHI KINERJA BIAYA OPERASIONAL DAN PEMELIHARAAN JARINGAN IRIGASI DI PAGUYAMAN

RADIAL: Jurnal Peradaban Sains, Rekayasa dan Teknologi doi:https://doi.org/10.37971/radial.v11i1.342

This study aims to identify the factors that influence the performance of operational and maintenance costs in the DI irrigation network. Paguyaman. To achieve this goal, the researchers used a survey method by distributing questionnaires to a number of respondents who were involved in the implementation and monitoring of DI irrigation networks. Paguyaman. Data collection was carried out by way of a direct survey to the location and a list of questions in the questionnaire for primary data. As for the secondary data obtained from the literature and data from related agencies. Based on the results of the questionnaire from the respondents, a ranking was made of the causal factors that affect the performance of operational and maintenance costs in the DI irrigation network. Paguyaman. From the ranking results, there are 15 factors that are categorized as influential. The conclusions that can be drawn after statistical tests are that there are seven factors that influence the performance of operational costs and maintenance of irrigation networks in D.I Paguyaman. These factors are unexpected conditions and events (floods, earthquakes and others), general information and methods in carrying out operations and maintenance for field officers are inadequate, there is still a lack of responsibility for officers in carrying out irrigation operations and maintenance, changes in areas that encouraging the conversion of paddy fields to other users, the number of operational and maintenance officers is still lacking, the equipment is of poor quality and there is no training for P3A, and the most dominant factors affecting the performance of operational costs and maintenance of irrigation networks in D.I Paguyaman are conditions and events that unexpected events (floods, earthquakes, etc.).

Rahman Abdul Djau, Sartan Nento, Andi Sahrul Hidayat, Supriyadi -
Artikel Jurnal 2023 SINTA 5 OA
SDG 9
0 sitasi
1