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All Journal International Conference on Coastal and Delta Areas JOURNAL SCIENTIFIC OF MANDALIKA (JSM) Technema: Journal of Intelligent Engineering and Computing
Prabowo Setiyawan
Universitas Islam Sultan Agung Semarang
Humanities Earth & Planetary Sciences Languange, Linguistic, Communication & Media Other

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ALTERNATIVE SOLUTION TO OVERCOME THE CORROSION OF CRROSIVE ENVIRONMENT STRUCTURES Prabowo Setiyawan
International Conference on Coastal and Delta Areas Vol 1, No 2 (2015): the 2th International Conference on Coastal and Delta Areas
Publisher : International Conference on Coastal and Delta Areas

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This paper aims to understand the cost-effective methods of corrosion problems solutions of structures constructed at corrosive areas. The solution is basically done by providing additional layer on the steel or concrete structural components. The study was done by reviewing the existing design standards and the research results conducted by the previous researchers as well as the publications issued by the company concerning on the corrosion problems solutions. It can be concluded that the corrosion problems decreasing the structural strength as well as life of the structure can be caused by chloride/carbonation, contact with water (moisture) and contact with oxygen. It can also be inferred that regarding to the purpose the corrosion problems solutions could be classified as corrosion protection, types of application and longevity. In addition, the chosen method and the product used to overcome the corrosion problems of the structures are affected and should be considered the local environment especially related to the chloride concentration, concrete properties, humidity and temperature.Keywords: steel structure, concrete structure, corrosive environments, corrosion problems solutions
Factors affecting bond strength between acrylic dental elements and thermoplastic nylon bases: a systematic literature review Denny Adhinugroho Suciptoi; Henny Pratiwi Adi; Prabowo Setiyawan
Journal Scientific of Mandalika (JSM) e-ISSN 2745-5955 | p-ISSN 2809-0543 Vol. 7 No. 3 (2026)
Publisher : Institut Penelitian dan Pengembangan Mandalika Indonesia (IP2MI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/10.36312/vol7iss3pp518-522

Abstract

The Transit Oriented Development Tanjungbarat Apartment Project is part of Perumnas' initiative to provide vertical housing integrated with public transportation. However, this project faces various challenges due to project risks, such as permitting issues, resource limitations, financial constraints, and other external factors. This study aims to analyze the influence of various types of risks on project success, assess risk probability and impact, and evaluate the risk mitigation strategies implemented by Perum Perumnas.The research employs a quantitative method with a case study approach. Data is collected through literature reviews, questionnaires, and interviews. The questionnaire respondents consist of 32 individuals, including the Project Management Office, project leaders, risk management, project structure, construction management, and construction executors involved in the TOD Tanjung Barat Apartment Project. The questionnaire results undergo validity and reliability testing, followed by multiple regression analysis. The identified risk variables are assessed using a risk scale formula (Probability × Impact) on a risk map to determine risk levels.The research findings indicate that the highest risk levels originate from resource-related aspects (4.08), design (4.06), environmental factors (4.06), financial aspects (3.72), and construction (3.87), all of which significantly impact project success. The risk matrix evaluation reveals that the project faces 4 risks at a high level, 7 at a moderate to high level, 6 at a moderate level, 8 at a low to moderate level, and 3 at a low level. The implemented risk mitigation strategies have proven effective in reducing risk levels, particularly for high-risk categories, contributing to the success of the Transit Oriented Development Tanjungbarat Project. However, continuous risk management is necessary to prevent risk escalation, especially for future project
Analysis of The Effect of The Number And Depth of Bored Pile Groups on The Settlement of Building Foundations in Soft Soil Safri Zakki Zaen; Septian Zaky Adi Putra; Prabowo Setiyawan; Sumirin Sumirin
Technema: Journal of Intelligent Engineering and Computing Vol. 1 No. 3 (2026): Technema: Journal of Intelligent Engineering and Computing
Publisher : CV SCRIPTA INTELEKTUAL MANDIRI

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This study investigates the influence of bored pile group size and pile depth on the settlement of building foundations constructed on soft soil in the Pakunden area, Semarang City. The analysis considered bored piles with a diameter of 0.8 m, spacing of 2.4 m, group configurations of 2 × 2, 3 × 3, and 4 × 4 piles, and depths of 10 m, 16 m, and 24 m. Elastic settlement was evaluated using the Vesic analytical method, while consolidation and total settlement were analyzed numerically using PLAXIS 2D V22 with the Hardening Soil Model. The results indicate a nonlinear relationship between pile number, pile depth, and settlement. The smallest numerical settlement was 0.04107 m for the 3 × 3 group at 10 m depth, whereas the largest was 0.17625 m for the 4 × 4 group at 24 m depth. Increasing pile number or depth did not consistently reduce settlement. Foundation performance was controlled by soil stratification, load distribution, pile-group interaction, and the extent of compressible soil mobilized under loading. These findings support integrated analytical and numerical evaluation for design.
Co-Authors Denny Adhinugroho Suciptoi Henny Pratiwi Adi Safri Zakki Zaen Septian Zaky Adi Putra Sumirin Sumirin