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All Journal Jurnal Teknik dan Science (JTS) Jurnal Abdi Masyarakat Multidisiplin
Agung Sakti Meldian
Universitas Dian Nusantara
Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Electrical & Electronics Engineering Industrial & Manufacturing Engineering Social Sciences

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Working Method of Column Casting In Residential House Construction Project at Jl. Martimbang No.2 Rifaldi Adi Saputra; Agung Sakti Meldian; Lutfi Hanafi; Aep Saepuloh
Jurnal Teknik dan Science Vol. 4 No. 2 (2025): Juni : Jurnal Teknik dan Science
Publisher : Asosiasi Dosen Muda Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56127/jts.v4i2.2227

Abstract

Column work is one of the important stages in constructing a residential house structure, functioning as the main element supporting the load. In the house construction project at Jalan Martimbang No. 2, South Jakarta, the column implementation method is designed to prioritize the accuracy, strength, and durability of the structure. The stages of work include material preparation, formwork manufacture, assembly and installation of reinforcement, and concrete casting according to the established technical specifications. The entire process is carried out by paying attention to quality standards and work safety procedures, as well as considering the conditions of the surrounding environment. With a systematic approach and the use of quality materials, it is expected that the column structures will be able to support the building optimally and meet the planned lifespan of the building.
Calculation of Steel Reinforcement Needs for Beams and Prestressed Beams: Case Study on a Residential Project in South Jakarta Rifaldi Adi Saputra; Agung Sakti Meldian; Riris Setiyowati; Arman Jayadi
Jurnal Teknik dan Science Vol. 4 No. 2 (2025): Juni : Jurnal Teknik dan Science
Publisher : Asosiasi Dosen Muda Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56127/jts.v4i2.2228

Abstract

This study aims to analyze the need for reinforcement in conventional and prestressed beams in a residential project in South Jakarta. A quantitative descriptive approach is used, allowing for the systematic and measurable presentation of numerical data. Data were collected through direct field surveys, focusing on the analysis of work execution methods and the calculation of steel reinforcement requirements, particularly for ground floor structural elements. The case study was conducted on a conventional beam of type As 4' ; E - I with a span of 22.40 meters, which resulted in an iron demand volume of 991.77 kg for 25 mm diameter and 472.37 kg for 13 mm diameter. Meanwhile, for the prestressed beam As J; 3 - 8 with a cross-sectional size of 400 x 500 mm and a span of 14.30 meters, an iron requirement of 526.96 kg for a diameter of 22 mm and 295.00 kg for a diameter of 13 mm was obtained. The results of this study provide a detailed estimation of the material requirements for reinforcing the residential structure, which can serve as a reference for planning and controlling construction costs.
Application of Earned Value Method for Analysing Cost and Time Performance in the Construction of the Bank Mandiri Flat in Pare-Pare, South Sulawesi Yuli Sulistiyohadi; Agung Sakti Meldian; Ervina Yuliyanti; Vikar Kurniawan
Jurnal Teknik dan Science Vol. 4 No. 2 (2025): Juni : Jurnal Teknik dan Science
Publisher : Asosiasi Dosen Muda Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56127/jts.v4i2.2230

Abstract

The Bank Mandiri Pare-Pare Sulawesi flat construction project is scheduled to be completed within 43 weeks with a contract value of Rp. 17,117,245,280. With time and cost constraints, good and thorough control is needed. The purpose of this study is to determine the cost and time performance at the end of the project completion. The method used in this study is the Earned Value method, which combines cost, time, and physical work performance elements. Data obtained from the project include the project schedule, Cost Estimate (RAB), weekly project reports, and actual costs. An analysis of costs, schedules, variances, and performance indices was conducted, highlighting issues that arose during the study. The Project Schedule Performance Index (SPI) at the 39th week review was 1.076, indicating that the project was ahead of schedule. The Project Cost Performance Index (CPI) from week 30 to week 38 showed values below 1, indicating that project expenditures exceeded the budget due to suboptimal progress weighting, as purchased materials were still in transit to the project site and had not yet been counted as progress by the owner. while in week 39, the index began to rise above 1 because progress weighting has become optimal, as the ordered goods have arrived and are now being accounted for in progress.
Sosialisasi Inovasi Beton Ramah Lingkungan Berbasis Tempurung Kelapa sebagai Substitusi Agregat Kasar Rifaldi Adi Saputra; Era Agita Kabdiyono; Agung Sakti Meldian; Stevi Cahyani; Yayo Hardiansah; Galang Romadlon; Hariyadi Hariyadi
 Jurnal Abdi Masyarakat Multidisiplin Vol. 5 No. 2 (2026): Agustus: JURNAL ABDI MASYARAKAT MULTIDISIPLIN
Publisher : Asosiasi Dosen Muda Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56127/jammu.v5i2.2798

Abstract

The increasing use of concrete in infrastructure development has led to a growing demand for natural aggregates, particularly gravel as coarse aggregate. This condition requires the introduction of environmentally friendly alternative materials based on local resources. Coconut shell is an organic waste commonly found in communities, yet its practical use as a construction material remains limited. This community service activity aims to improve participants’ knowledge and basic skills in utilizing coconut shell as a substitute for coarse aggregate in environmentally friendly concrete mixtures. This study employed a descriptive qualitative method through socialization, demonstration, simple practice, observation, documentation, discussion, and evaluation of participants’ understanding. The data were analyzed descriptively to explain the implementation process, participants’ responses, and changes in their understanding of coconut shell waste utilization. The results show that participants gained knowledge about the concept of green concrete, the function of coarse aggregate in concrete mixtures, the initial processing stages of coconut shell, and the potential of local waste as an alternative material for simple construction applications. The implication of this activity is the improvement of community awareness regarding waste utilization and the importance of sustainable construction materials. The originality of this activity lies in its educational and practical approach to introducing coconut shell as a coarse aggregate substitute through direct socialization and hands-on practice with the community.
Co-Authors Aep Saepuloh Era Agita Kabdiyono Ervina Yuliyanti Galang Romadlon Hariyadi Hariyadi Jayady, Arman Lutfi Hanafi Rifaldi Adi Saputra Riris Setiyowati Stevi Cahyani Vikar Kurniawan Yayo Hardiansah Yuli Sulistiyohadi