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All Journal Jurnal Talenta Sipil Elektriese: Jurnal Sains dan Teknologi Elektro Global Education Journal
Renjani, Muhammad Sodri
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Aerospace Engineering Agriculture, Biological Sciences & Forestry Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Social Sciences Other

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Perbandingan Kuat Tekan Beton Menggunakan Campuran Sirtu Terhadap Beton Normal Gustina, Gustina; Renjani, Muhammad Sodri; Nasatian, Ari Endra; Kutni, Darul; Rianto, Doli Jumat
Jurnal Talenta Sipil Vol 8, No 1 (2025): Februari
Publisher : Universitas Batanghari Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33087/talentasipil.v8i1.838

Abstract

The existence of sirtu in the open air is the main choice, it is easy to find, but sometimes it is not known what the ideal percentage is needed to add sirtu as an additional mixture in making concrete according to the desired concrete quality. This type of research is quantitative research with an experimental method to determine the comparison of the compressive strength of concrete with the addition sand and stone in the concrete mixture against normal concrete. A sample of 27 test specimens with concrete age tolerance testing carried out at the ages of 7, 14 and 28 days. The comparison of optimum concrete compressive strength will be seen on the 28th day using a compressive strength test tool in the form of a hammer test and compression testing machine. The test results using the hammert test tool on normal concrete samples were 251.23 kg/cm2, the addition of 25% sirtu obtained 225.50 kg/cm2 and the addition of 50% sirtu obtained a compressive strength test of 221.86 kg/cm2. Meanwhile, testing with a compression testing machine on normal concrete samples obtained 278.04 kg/cm2, adding 25% sirtu obtained 273.51 kg/cm2 and adding 50% sirtu obtained a compressive strength test of 242.44 kg/cm2. Overall, the concrete compressive strength test tool for the variables used showed a decrease in the results of the normal concrete compressive strength test along with the addition of the percentage of sirtu, but still in accordance with the quality standards of the concrete produced above 20 MPa which was measured on days 7, 14, and 28. Overall, the concrete compressive strength test tool for the variables used shows a decrease in the results of the normal concrete compressive strength test along with the addition of the percentage of sirtu, meaning that the higher the percentage of sirtu used, the lower the compressive strength of the concrete produced along with the increasing age of the concrete, but still in accordance with the quality standards of the concrete produced above 20 MPa which is measured on the 7th (seventh), 14th (fourteenth), and 28th (twenty-eighth) days.
Analisa Perbandingan Biaya dan Waktu Pekerjaan Pemasangan Dinding Konvensional dengan Pertisis High Pressure (HPL) pada Pembangunan Gedung Universitas Muara Bungo Sriwijaya, Sriwijaya; Renjani, Muhammad Sodri
Elektriese: Jurnal Sains dan Teknologi Elektro Vol. 14 No. 02 (2024): Artikel Riset Edisi Oktober 2024
Publisher : Yayasan Cita Cendekiawan Al Khwarizmi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47709/elektriese.v14i02.5511

Abstract

Pembangunan gedung merupakan salah satu proyek konstruksi yang membutuhkan pemilihan bahan baku yang tepat dalam setiap tahapannya. Dalam membangun sebuah rumah, gedung kantor, kampus atau bangunan lain biasanya masyarakat atau lembaga menggunakan dinding konvensional. Akan tetapi, seiring kemajuan teknologi, bahan bangunan berkembang dengan pesat, salah satunya adalah pertisi dinding bangunan. Bermacam-macam pertisi dinding sesuai dengan karakter dan tujuan mereka masing-masing. Adapun pertisi dinding yang marak digunakan saat ini adalah Allumunium Composite Panel (ACP), triplek, High Pressure Laminated (HPL), dan gipsum. Dalam hal ini penelitian fokus pada dinding konvensional dan HPL.Tujuan penelitian ini adalah untuk mengetahui berapa lama waktu yang diperlukan untuk pemasangan dinding konvensional dan plesteran, dan lama waktu pemasangan pertisi HPL, dan besar biaya yang diperlukan. Pembangunan dinding dengan menggunakan bata konvensional membutuhkan biaya dengan anggaran Rp. 272,406,465.43,- dengan waktu pelaksanaan pekerjaan 20 minggu. Pembangunan dinding pembatas dengan menggunakan HPL membutuhkan biaya sebesar Rp. 242,172,678.32, - dengan waktu pelaksanaan selama 12 minggu. Sehingga dapat disimpul bahwa biaya penggunaan dinding HPL lebih kecil Rp. 30,233,787.11, - dibanding dengan dinding bata konvensional, sedangkan waktu yang diperlukan lebih cepat dengan menggunakan dinding HPL dibanding dinding bata konvensional dengan selisih waktu 8 minggu. 
Comparative Analysis of Time and Cost Efficiency in Project Acceleration Strategies: A Case Study of the Construction of a Police Service Building Afrida, Widia Dini; Renjani, Muhammad Sodri; Rahmawati, Devit; Radinal, Radinal
Global Education Journal Vol. 3 No. 1 (2025): Global Education Journal (GEJ)
Publisher : Civiliza Publishing, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59525/gej.v3i1.288

Abstract

Optimal time and cost management are fundamental factors in ensuring the success of construction projects. One effective approach to address the risk of delays and cost overruns is the Time Cost Trade-Off (TCTO) method, which allows for project duration compression through resource adjustment and cost control. This study aims to analyze and compare two acceleration scenarios for the construction of the Police Service Building in Bungo Regency: additional working hours (overtime) and additional labor. This study uses a descriptive quantitative approach through a case study. The Critical Path Method (CPM) is applied to identify the critical path as the basis for implementing the TCTO strategy. The results of this study indicate that both scenarios can accelerate the project duration from 214 days to 130 days, with a time efficiency of 39.25%. The overtime scenario provides a cost efficiency of 0.38%, while additional labor results in an efficiency of 0.16%. Although overtime is more economical in nominal terms, the additional labor strategy is considered more stable and feasible to implement in public projects with sufficient work space. The results of this study contribute to strategic decision-making in data-driven construction project management.
Pemanfaatan Palm Oil Fuel Ash (POFA) Sebagai Pengganti Sebagian Agregat Halus dalam Campuran Beton Nasution, Ari Endra; Wijaya, Sucitra; Christalline, Silvia; Renjani, Muhammad Sodri
Jurnal Talenta Sipil Vol 8, No 2 (2025): Agustus
Publisher : Universitas Batanghari Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33087/talentasipil.v8i2.1015

Abstract

This study investigates using Palm Oil Fuel Ash (POFA) as a partial substitute for some of fine aggregate (sand) in concrete mixtures. The goal is to determine the optimal percentage of POFA by testing several variations of its use as a substitute for fine aggregate. The study employed an experimental methodology involving the preparation of 15 cm x 15 cm x 15 cm cubic test specimens in accordance with SNI 03-2834-2000 (Procedures for Preparing Normal Concrete Mix Designs). The POFA percentages were 0% (control specimen), 5%, 6%, 7%, 8%, 9%, 10%, and 20%.  Test results showed that the compressive strength of concrete produced using 0% POFA (normal concrete) was 228.6 kg/cm². The compressive strengths of concrete produced using 5%, 6%, 7%, 8%, 9%, and 10% POFA were 134.9, 156.9, 159.7, 198.3, 198.3, and 151.5, 159,7 kg/cm², respectively. The test results indicate that adding POFA to the concrete decreased its compressive strength relative to control specimen. However, substituting fine aggregate with POFA at 8% and 9% resulted in higher compressive strength than the other variations. The results also indicated the potential for an increase in concrete compressive strength between 10% and 20%.
Comparative Analysis of Time and Cost Efficiency in Project Acceleration Strategies: A Case Study of the Construction of a Police Service Building Afrida, Widia Dini; Renjani, Muhammad Sodri; Rahmawati, Devit; Radinal, Radinal
Global Education Journal Vol. 3 No. 1 (2025): Global Education Journal (GEJ)
Publisher : Civiliza Publishing, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59525/gej.v3i1.288

Abstract

Optimal time and cost management are fundamental factors in ensuring the success of construction projects. One effective approach to address the risk of delays and cost overruns is the Time Cost Trade-Off (TCTO) method, which allows for project duration compression through resource adjustment and cost control. This study aims to analyze and compare two acceleration scenarios for the construction of the Police Service Building in Bungo Regency: additional working hours (overtime) and additional labor. This study uses a descriptive quantitative approach through a case study. The Critical Path Method (CPM) is applied to identify the critical path as the basis for implementing the TCTO strategy. The results of this study indicate that both scenarios can accelerate the project duration from 214 days to 130 days, with a time efficiency of 39.25%. The overtime scenario provides a cost efficiency of 0.38%, while additional labor results in an efficiency of 0.16%. Although overtime is more economical in nominal terms, the additional labor strategy is considered more stable and feasible to implement in public projects with sufficient work space. The results of this study contribute to strategic decision-making in data-driven construction project management.
Co-Authors Afrida, Widia Dini Christalline, Silvia Gustina Gustina Kutni, Darul Nasatian, Ari Endra Nasution, Ari Endra Radinal, Radinal Rahmawati, Devit Rianto, Doli Jumat sriwijaya, sriwijaya Wijaya, Sucitra