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Jurnal Manajemen Teknologi dan Teknik Sipil (JURMATEKS)
Published by Universitas Kadiri
ISSN : -     EISSN : 26217686     DOI : http://dx.doi.org/10.30737/jurmateks
Core Subject : Engineering,
Civil Engineering, Building, Construction & Architecture Electrical & Electronics Engineering Engineering Transportation
JURMATEKS (Jurnal Mahasiswa Teknik Sipil) diterbitkan oleh Program Studi Teknik Sipil, Fakultas Teknik, Universitas KADIRI untuk menampung hasil penelitian, tugas akhir maupun tugas proyek mahasiswa teknik sipil di lingkungan Universitas KADIRI.
Arjuna Subject : Teknik (semua kategori) - Bangunan dan Konstruksi
Articles 6 Documents
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Search results for , issue "Vol. 8 No. 1 (2025): JUNE" : 6 Documents clear
Strategi Pengembangan Sertifikasi Kompetensi Tenaga Kerja Konstruksi Di Provinsi Sumatera Selatan Berbasis Kebutuhan dan Analisis SWOT Oktarina Mangindaan, Vanny; Fitriani, Heni; Zainal Arifin, Doedoeng
Jurnal Manajemen Teknologi & Teknik Sipil Vol. 8 No. 1 (2025): JUNE
Publisher : Kadiri University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30737/jurmateks.v8i1.6585

Abstract

Construction workforce certification is a critical issue in Indonesia's infrastructure development sector, as mandated by the Construction Services Law requiring all construction workers to obtain Work Competency Certificates (SKK). This study aims to formulate strategies for developing construction workforce construction workers in South Sumatra Province through the integration of demand analysis and SWOT analysis. A quantitative approach was applied, where secondary data were used to project certification needs for 105 construction projects planned under the 2025-2029 State Budget. In addition, primary data were collected through questionnaires and interviews identify key factors influencing SKK acquisition, which were then incorporated into the SWOT framework for strategic. Results revealed that while expert-level certification (Levels 7-9) needs are met with 1,792 certified professionals available, significant shortages exist at the technician/analyst level (Levels 4-6) with a gap of 2,139 positions and at the operator level (Levels 1-3) with a substantial deficit of 48,882 certified workers. Factor analysis identified self-motivation, wage increase prospects, time constraints, regulatory sanctions, and enhanced employment opportunities as key determinants in SKK acquisition decisions. The SWOT analysis concluded that a Strength-Opportunity (SO) strategy would be most effective, leveraging regulatory frameworks, digital certification processes, educational institution collaborations, and on-site certification to address the certification gaps. This research provides evidence-based recommendations for policymakers to develop targeted interventions that can strengthen construction workforce capacity and ensure compliance with national standards.
Studi Mekanisme Kelongsoran dan Alternatif Penanganan Tanah Lunak Pada Ruas Jalan Tol Indrapura – Kisaran (STA 112+850 – STA 112+900) Haririi, Adnan; Wahyudi, Herman; Lastiasih, Yudhi
Jurnal Manajemen Teknologi & Teknik Sipil Vol. 8 No. 1 (2025): JUNE
Publisher : Kadiri University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30737/jurmateks.v8i1.6652

Abstract

Embankment stability is a critical aspect of transportation infrastructure projects, especially in constructing on soft soil. Soft soil has low bearing capacity, high compressibility and low permeability. These characteristics increase the risk of structural failure, such as landslides and excessive settlement necessitating appropriate reinforcement methods. Beyond safety consedirations, soil strengthening must also factor in cost-effectiveness and construction time  to ensure an efficient and economical approach. This study aims to evaluate the effectiveness of Prefabricated Vertical Drain (PVD), geotextile, spun pile, as well as a combination of PVD and geotextile reinforcement methods. Field investigations and laboratory test provided soil and geometric data. This data is used as input in modeling using a finite element approach with Plaxis 2D software. The analysis results include safety factor (SF) values, ​​which are then calculated for strengthening costs and implementation time. A multi-criteria analysis is employed to determine the most optimal reinforcement method based on SF, cost, and implementation duration. The results indicate that the combination of PVD and geotextile provides the highest value, with a safety factor of 1.73, construction costs of IDR 1.57 billion, and implementation duration of 90 days. This strengthening is able to balance the three aspects considered. The combination of PVD which accelerates consolidation and geotextiles which strengthen the embankment structure has been proven to increase stability without significantly increasing costs. These findings contribute to the optimization of soft soil strengthening strategies in selecting efficient and economical strengthening methods.
Kajian Kinerja Kombinasi Filler Tanah Putih dan Abu Sekam Padi pada Campuran Aspal AC-WC Anastasia Ipah Wuwur, Dewi; Budiman Pantas, Vinsensius; Rikardus Sodanango, Mateus; Bernadus Mbau, Reza
Jurnal Manajemen Teknologi & Teknik Sipil Vol. 8 No. 1 (2025): JUNE
Publisher : Kadiri University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30737/jurmateks.v8i1.6304

Abstract

The high cost and limited availability of conventional fillers in several regions necessitate the exploration of local alternative materials. This study investigates the potential use of white soil (limestone) and rice husk ash (RHA) as alternative fillers in Asphalt Concrete–Wearing Course (AC-WC) mixtures. The experimental research was conducted at the Kupang State Polytechnic Laboratory. White soil was sourced from East Penfui, while rice husk ash was collected from Oesao. Filler variations of 0%, 0.5%, 1%, 1.5%, and 2% were tested on 63 specimens in accordance with Bina Marga 2018 specifications. Marshall tests were performed to evaluate stability, VIM, VMA, VFA, flow, and MQ parameters. The results show that white soil filler optimally increased density and achieved desirable VIMand VMA values up to 1.5%, while rice husk ash enhanced flexibility but tended to increase voids at higher percentages. The optimum combination of both fillers was found at 0.75% total filler content, fulfilling all Marshall parameter standards specified by Bina Marga 2018. This study concludes that a carefully optimized combination of white soil and RHA is a viable, economical, and sustainable alternative filler for AC-WC pavement layers.
Karakterisasi Mortar Geopolimer terhadap Penambahan Kapur Berbasis Abu Terbang dan ASP dengan NaOH 10 Molar Sibuea, Maria Enjelina; Wardhono, A.
Jurnal Manajemen Teknologi & Teknik Sipil Vol. 8 No. 1 (2025): JUNE
Publisher : Kadiri University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30737/jurmateks.v8i1.6593

Abstract

Cement which is the main material for making concrete has a negative impact on environmental, namely producing carbon emissions. One alternative to overcome this, is the use of fly ash and rice husk ash as a cement substitute. The addition of lime, which is a form of CaO, functions to increase the reactive properties of class C fly ash. The concrete curing process is carried out at room temperature, because the properties of lime itself speed up the hardening process. This research aims to determine the best ratio for adding lime in terms of compressive strength, porosity and setting time. Lime was added with several variations, namely 1%, 2.5%, 5%, 7.5%, and 0% as a control. The results of this research on the addition of lime to geopolymer mortar are reducing the compressive strength value, increase porosity, and extends setting time. Mortar with 7.5% lime compared to 1% lime, has lower compressive strength (1.12 MPa: 7.70 MPa), higher porosity (32.91%: 18.72%), and longer setting time (270 minute: 240 minute). However, if mortar with 1% lime compared to normal gepolymer without lime, has better results. Higher compressive strength (7.70 MPa: 5.63 MPa), lower porosity (18.72%: 22.93%), and fast setting time (240 minute: 495 minute). So the results of this research, a slight change in the lime portion can make a significant difference, excessive additions will disrupt the geopolymer reaction.
Optimasi Waktu dan Biaya Proyek Gelanggang Olahraga Kalimantan Selatan dengan Metode Time Cost Trade-Off Widiastuti, Endah; Sugiarti, Maesa Fitri; Yuliana, Candra; Karim, Abdul
Jurnal Manajemen Teknologi & Teknik Sipil Vol. 8 No. 1 (2025): JUNE
Publisher : Kadiri University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30737/jurmateks.v8i1.6597

Abstract

Construction projects often face delays and cost overruns due to material delays, labor shortages, and adverse weather. In the Sports Building project in South Kalimantan, a 17-day delay beyond the planned 270-day schedule increased costs, risk of penalties, and threatened the contractor’s reputation and project sustainability. Therefore, accelerating completion is essential to reduce losses. Overtime on critical path activities is a common acceleration method but requires careful analysis since excessive overtime can reduce productivity and raise costs. This study aims to analyze alternatives for accelerating the duration of the construction of a sports arena in South Kalimantan using the Time Cost Trade-Off (TCTO) method. TCT) method is applied, focusing on adding 2, 3, and 4 hours of overtime per day on critical path tasks. The approach integrates actual project data, regulations, and productivity factors to develop effective acceleration strategies. Results show that adding 3 hours of overtime daily is the most efficient, reducing duration from 287 to 283 days and saving IDR 71,652,415.38. However, the 270-day target is not yet met, requiring further crashing. This paper presents only one crashing iteration as a practical simulation to demonstrate the method and potential outcomes. Future crashing will focus on tasks with the lowest cost slope while considering task dependencies.
Efisiensi Proyek Perumahan Green Teksin Tegal melalui Rekayasa Nilai: Pendekatan AHP dan Analisis Biaya Siklus Hidup Putra, Benny Hermana; Wulandari , Dewi Ayu
Jurnal Manajemen Teknologi & Teknik Sipil Vol. 8 No. 1 (2025): JUNE
Publisher : Kadiri University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30737/jurmateks.v8i1.6647

Abstract

The construction sector significantly contributes to Indonesia's economic growth. However, this sector continues to face challenges in achieving cost efficiency and sustainability, particularly in medium-scale housing projects. This study aims to evaluate the application of Value Engineering (VE) in the Green Teksin Tegal Phase 2 Housing Project, focusing on optimizing material selection, construction techniques, and project management to enhance efficiency and effectiveness. A combined quantitative and qualitative methodology was utilized, incorporating the Analytical Hierarchy Process and Life Cycle Cost Analysis. Data collection involved project documentation reviews, structured stakeholder interviews, and site observations. Findings identified substantial cost-saving alternatives, including thin plastering (skimming), low cement-sand mixture concrete blocks, and laminated High-Density Fiberboard doors. These alternatives demonstrated savings of approximately 8.46%, 16.81%, and 20%, respectively. The study acknowledges obstacles such as fluctuating material prices, environmental regulations, and stakeholder preferences, recommending strategic solutions to mitigate these issues. The project's long-term economic viability and environmental sustainability can significantly improve by addressing these challenges. This research contributes valuable insights into cost-effective project execution, highlighting Value Engineering’s potential to enhance future residential construction projects' quality, sustainability, and economic viability, ultimately benefiting broader urban development and environmental conservation initiatives.

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