The Integrated Spatial Assessment of The Flood Hazard Using AHP-GIS: The Case Study of Gorontalo Regency
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.
LIMBAH KACA SEBAGAI PENGANTI SEBAGIAN AGREGAT HALUS UNTUK BETON RAMAH LINGKUNGAN
GIS-based analytic hierarchy process (AHP) for soil erosion-prone areas mapping in the Bone Watershed, Gorontalo, Indonesia
Beton Hijau Menggunakan Fly ash sebagai Subtitusi Parsial Semen
Assessment of critical land using geographic information systems - a case study of Limboto watershed, Gorontalo
Analysis of Spatial Distribution of the Drought Hazard Index (DHI) by Integration AHP-GIS-Remote Sensing in Gorontalo Regency
Spatial modeling of soil erosion risk: a multi-criteria decision-making (MCDM) approach in the paguyaman watershed, gorontalo, Indonesia
Innovative porous mortar filters: wastewater purification for clean water
Tree-based machine learning algorithms for soil erosion vulnerability (SEV) prediction in Saddang Watershed, south Sulawesi, Indonesia
KAJIAN UPAYA PENGELOLAAN DAN PEMANTAUAN LINGKUNGAN PEMBANGUNAN RUMAH KHUSUS LANSIA KABUPATEN GORONTALO UTARA
Transformation of Geospatial Modelling of Soil Erosion Susceptibility Using Machine Learning
ENVIRONMENTALLY FRIENDLY CONCRETE USING WASTE GLASS POWDER (WGP) AS A PARTIAL SUBSTITUTE OF CEMENT
Hazard Level of Dengue Haemorrhagic Fever in Gorontalo Regency: Prediction of Spatial Distribution with AHP-GIS Integration
Compressive Strength Performance of Rice Husk Ash-Based Geopolymer Concrete with Fly Ash as a Secondary Material.
Analisis perencanaan tebal perkerasan jalan pada ruas jalan Pinontoyonga menggunakan metode Manual Desain Perkerasan (MDP), metode Analisis Komponen (MAK), dan AASHTO 1993
Dengue hemorrhagic fever vulnerability assessment in Gorontalo Regency using analytic hierarchy process and geoinformation techniques
Kajian Penyusunan UKL UPL pada Pekerjaan Revitalisasi Pasar Tolango Kabupaten Gorontalo Utara
Machine Learning Approaches to Soil Erosion Risk Mapping: A Comparison between Logistic Regression and Fast Large Margin
Sustainable Self-Compacting Concrete: The Role of Limestone Powder as A Cement Replacement
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.