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All Journal Eduvest - Journal of Universal Studies
Sumargo Sumargo
Universitas Jendral Achmad Yani
Aerospace Engineering Computer Science & IT Health Professions Neuroscience Social Sciences

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Performance Assessment of Concrete Structure Urea Fertilizer Dust Scrubber Sumargo Sumargo; Zainudin Zainudin
Eduvest - Journal of Universal Studies Vol. 5 No. 8 (2025): Eduvest - Journal of Universal Studies
Publisher : Green Publisher Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59188/eduvest.v5i8.50793

Abstract

The concrete dust scrubber building is a crucial treatment unit in a urea fertilizer plant, responsible for processing urea dust emissions. Given Indonesia's location in the Pacific Ring of Fire, ensuring the building’s structural integrity against seismic influences is essential. Regular structural evaluations using Destructive Testing (DT) and Non-Destructive Testing (NDT) help assess concrete strength, reinforcement conditions, and environmental effects on corrosion. Structural performance analysis was conducted using Robot Structural Analysis Professional software. Due to safety concerns over urea dust emission leakage, core drilling (DT) was not performed. Instead, concrete quality was assessed using the Hammer Test and Ultrasonic Pulse Velocity (UPV), yielding a compressive strength of 24.4 MPa. Reinforcement steel was evaluated through NDT methods, including carbonation, chloride, pH, and Half-Cell Potential (CANIN) testing, to assess environmental radiation effects. Steel Hardness Testing showed an average yield strength of 398 MPa, with a minimum of 396 MPa. The results indicated a 24 MPa reduction in steel quality due to environmental radiation. Structural performance was analyzed using ASCE 41-17 standards through Tier 1, Tier 2, and Tier 3 evaluations. The results demonstrated that the concrete dust scrubber building meets the stiffness, strength, and deformability criteria of SNI 1726:2019 for Special Moment Resisting Frame (SRPMK) systems. This confirms the building’s structural viability for continued operation in the urea fertilizer production process.
Planning of Gosong Pasir Beacon Buoy with Flush-Mounted Aluminum Anode as a Corrosion Solution for SBNP Sumargo Sumargo; Fauzaniah Hijjatul Jensi Nun; Siti Muthmainnah Az Zahra
Eduvest - Journal of Universal Studies Vol. 5 No. 7 (2025): Eduvest - Journal of Universal Studies
Publisher : Green Publisher Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59188/eduvest.v5i7.50832

Abstract

Based on Law No.43 of 2008, guarding and monitoring the coastline of Indonesia is very important, because it is closely related to the boundaries of the sea area that needs to be regulated for national defense. In the sea area, Navigational Aids (SBNP) type of beacon signs are used as a sign of state boundaries which have been regulated in Permenhub No.25 of 2011. In Indonesia, the beacon building in the waters of Gosong Pasir, Riau Province, experienced two collapses within 12 years. Therefore, this study examines more deeply and provides solutions to structural strength, cathodic protection, and mechanical electrical structures. The data used in this study are bathymetry data, underwater image data, sub bottom profile data, tide data, current data, and sediment sample data. Hydrodynamic modeling is carried out to obtain platform elevation and cycle time results. Furthermore, for corrosion problems, ASTM A252 Grade B and ASTM A53 Grade B steel pipes are proposed with Flush-Mounted Aluminum Anode cathodic protection with a trapezoidal cross section and coating process.
Co-Authors Fauzaniah Hijjatul Jensi Nun Siti Muthmainnah Az Zahra Zainudin Zainudin