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INDONESIA
Jurnal Konstruksi
Published by Institut Teknologi Garut
ISSN : 14123614     EISSN : 23027320     DOI : https://doi.org/10.33364/konstruksi
Core Subject : Engineering,
Civil Engineering, Building, Construction & Architecture
Jurnal Kosntruksi yang dapat menampung dan mempublikasikan hasil karya penelitian, karya tulis dan pengabdian masyarakat baik mahasiswa dan dosen-dosen intern maupun dari pihak luar. Jurnal Konstruksi memberikan informasi yang diperoleh dari laboratorium dan workshop penelitian maupun dari lapangan/ studi kasus di dunia nyata dengan cakupan (Scope of Journals) bidang meliputi struktur transportasi/ infrastruktur, air, geoteknik, manajemen konstruksi, dan lingkungan. Melalui jurnal konstruksi diharapkan dapat menampung semua inspirasi bidang teknik sipil sehingga didapatkan pemecahan masalah yang dihadapi dan mampu melahirkan inovasi baru dibidangnya.
Arjuna Subject : Teknik (semua kategori) - Teknik Sipil dan Struktur
Articles 301 Documents
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Analisis Hambatan Samping terhadap Kinerja Lalu Lintas Menggunakan Regresi Linier Berganda Eriza Auliansyah; Felly Misdalena; Panti Wahyuningsih
Jurnal Konstruksi Vol 23 No 2 (2025): Jurnal Konstruksi
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/konstruksi/v.23-2.2475

Abstract

The purpose of this study is to examine how side obstacles affect traffic flow on Jalan Ikan Sebelah in Bandar Lampung City. Roadside parking, stopped cars, cars entering and exiting, pedestrians, and slow-moving vehicles such as bicycles and pedicabs are all considered side obstacles. To assess the contribution of each side obstacle, this study uses multiple linear regression and traffic performance analysis based on the 2014 Indonesian Road Capacity Guidelines (PKJI). With light vehicles traveling at only 19.18 km/h during rush hour, the results show that the degree of saturation reached a value of 0.80, indicating a category D road service level. Vehicle parking, stopping, and entering and exiting had the greatest side obstacles, with an obstacle value of 548.8 smp/hour. These findings confirm that managing side constraints is crucial for improving the capacity and performance of road sections in areas with high social and economic activity.
Pengaruh Limbah Tulang Sapi sebagai Agregat Kasar dalam Beton Normal l Damar Khusnan Najib; Destiana Safitri
Jurnal Konstruksi Vol 23 No 2 (2025): Jurnal Konstruksi
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/konstruksi/v.23-2.2476

Abstract

Concrete is a composite material made from several components, using the primary ingredients of cement, fine aggregates, coarse aggregates, air, and additional materials if needed, with a specific composition. This study aims to analyze the effect of using cattle bone waste as an additional material for coarse aggregates in normal concrete production. Cattle bone waste was chosen due to its abundant availability and the presence of hydroxyapatite minerals, which have the potential to enhance the strength of concrete. Variations of cattle bone mixture at 0%, 5%, 10%, and 15% were used in the production of cylindrical test specimens, followed by compressive strength testing after a 28-day curing process. The results of the tests show that the higher the percentage of cattle bone used, the lower the compressive strength of the concrete. Concrete without cattle bones (0%) had the highest compressive strength of 16.62 MPa, while concrete with 5%, 10%, and 15% mixtures had average compressive strengths of 14.58 MPa, 11.76 MPa, and 11.26 MPa, respectively. The decrease in compressive strength is due to the more porous and brittle physical properties of cattle bones compared to natural aggregates, which affects the density and strength of the concrete structure. Therefore, the use of cattle bones as an alternative aggregate should be limited to a certain level to maintain the quality of the concrete. This study contributes to reducing organic waste and innovating the use of local materials in environmentally friendly construction.
Pengaruh Penambahan Serat Bambu terhadap Kuat Tekan Beton Valentinus Wenang Trisno Jati; Destiana Safitri; Fajar Dewantoro
Jurnal Konstruksi Vol 23 No 2 (2025): Jurnal Konstruksi
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/konstruksi/v.23-2.2477

Abstract

Fiber concrete is an innovation in concrete technology that utilizes additional materials in the form of natural or synthetic fibers to improve its mechanical characteristics, such as tensile strength, crack resistance, and ductility. In this study, K150 grade concrete was used with four variations of bamboo fiber addition: 0% (as a control), 0.5%, 1%, 1.5%, and 2% by weight of cement. Compressive strength tests were conducted at 14 and 28 days. The results showed that the addition of bamboo fibers consistently increased the compressive strength of the concrete. This increase was associated with better bonding between the aggregate and cement paste, which increased the density and strength of the material. At 14 days, concrete without fiber achieved a compressive strength of 10.57 N/mm², while concrete with 2% bamboo fiber achieved 15.94 N/mm². At 28 days, the respective values were 12.91 N/mm² and 17.85 N/mm². The average increase was 26.15% compared to the control concrete. Further research is recommended to explore higher fiber content and the use of various types of bamboo to evaluate the comparison of compressive strength performance. This study contributes to the development of environmentally friendly concrete by utilizing sustainable local materials.
Pengaruh Variasi Campuran Serbuk Kayu Akasia, Jati, Medang Terhadap Kuat Tekan Beton Made Sandita Pranatya; Alfath Zain
Jurnal Konstruksi Vol 23 No 2 (2025): Jurnal Konstruksi
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/konstruksi/v.23-2.2478

Abstract

This study aims to evaluate the effect of adding teak, acacia, and medang wood powder on the compressive strength of concrete and its suitability for non-structural applications. This study was conducted experimentally in a laboratory by making cylindrical concrete test specimens and testing their compressive strength after 28 days. Wood powder was mixed into normal concrete with variations of 0% (control concrete), 20%, 40%, and 60%. The test results showed that concrete with a 20% wood powder mixture still met the criteria for non-structural use, with an average compressive strength of 9.60 MPa. However, the addition of large amounts of wood powder (40%–60%) caused a significant decrease in compressive strength, with average values ranging from 6.49 MPa to 4.42 MPa. The control concrete without wood powder showed the best performance with an average compressive strength of 10.79 MPa. These findings indicate that wood powder from Teak, Acacia, and Medang trees can be used as a partial substitute for sand in non-structural concrete mixtures with a maximum usage limit of 20%. The implication is that the use of wood powder at this level not only has the potential to reduce production costs but also helps reduce the need for sand by around 0.93 kg per concrete mixture, thereby contributing to wood waste management and natural resource conservation.
Analisis Faktor E-Purchasing Konstruksi Menggunakan RII dan Mixed Method Irla Erdina Sari; Wahyudi P Utama; Khadavi
Jurnal Konstruksi Vol 23 No 2 (2025): Jurnal Konstruksi
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/konstruksi/v.23-2.2486

Abstract

This study aims to identify the driving and inhibiting factors in the implementation of e-purchasing in the selection of construction work providers. As an electronic-based procurement system, it is expected to improve efficiency, transparency, and accountability in the procurement process of goods and services. However, various obstacles are still found in its implementation. The results of the study show that the main driving factors consist of adequate information technology support, increased human resource capacity, and supportive regulations. Conversely, the inhibiting factors include unstable internet networks, a lack of socialization regarding the e-purchasing system, and a limited number of experts in this field. The research method used is quantitative descriptive with data analysis using the Relative Importance Index (RII). These results are expected to provide a basis for more effective electronic construction procurement policies.
Analisis Penerapan Manajemen Keselamatan dan Kesehatan Kerja pada Proyek Konstruksi Ganjar Jojon Johari; Azis Muslim
Jurnal Konstruksi Vol 23 No 2 (2025): Jurnal Konstruksi
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/konstruksi/v.23-2.2545

Abstract

The construction sector carries a high risk of workplace accidents, making the implementation of Occupational Health and Safety (OHS) management essential to ensure worker safety and support smooth project execution. This study aims to analyze the extent of OHS management implementation in the Rancabango Hotel Construction Project, Garut Regency, and to identify inhibiting factors and control measures. The research applied a descriptive quantitative approach through questionnaires distributed to 65 respondents representing various project roles. Data were analyzed using descriptive statistical methods and the Respondent Satisfaction Index (RSI). The results show that several aspects have been implemented relatively well, including OHS policies (X = 3.17), equipment and machinery inspection (X = 3.4), and workplace cleanliness (X = 3.46), all of which fall into the “Agree” category. However, there remain significant weaknesses in OHS implementation, particularly in accident evaluation (X = 2.15), use of personal protective equipment (PPE) (X = 2.34), and leadership attention to OHS (X = 2.34), which are all categorized as “Disagree.” These factors represent the main obstacles to effective OHS management on the project. As control measures, the study recommends appointing certified OHS officers, improving training and awareness programs, and implementing standard operating procedures (SOPs) for regular accident evaluations. The findings are expected to serve as a reference for enhancing the effectiveness of OHS management in construction projects, thereby reducing potential workplace accidents, improving productivity, and fostering a safer and more sustainable work environment.
Analisis FaktorPenyebab Contract Change Order pada Proyek Jalan menggunakan SWOT Muhammad Fadli; Indra Farni
Jurnal Konstruksi Vol 23 No 2 (2025): Jurnal Konstruksi
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/konstruksi/v.23-2.2548

Abstract

This study aims to analyze the factors causing Contract Change Orders (CCOs) in road construction projects, focusing on a case study of the Pasar Baru – Alahan Panjang road improvement project in West Sumatra. CCOs often arise due to discrepancies between the initial plan and conditions in the field, such as changes in weather, unexpected soil conditions, and regulatory changes. This study uses a combination of quantitative and qualitative methods, where data is collected through questionnaires and analyzed using SWOT techniques and internal-external factor analysis. The findings of this study indicate that the main causes of CCO in this project are errors in planning, lack of coordination between related parties, and unexpected changes in field conditions. The impacts of CCO include increased costs, delays, and reduced work quality. As a solution, this study suggests the implementation of better mitigation strategies, such as more careful planning, strengthening coordination between parties involved, and more efficient risk management. These findings can be used as a reference in planning road projects that are more adaptive to contract change risks.
Pengaruh Durasi Pemanasan Aspal dan Simulasi Penuaan Campuran Aspal terhadap Kinerja Stiffness, Creep, dan Fatigue Perkerasan Jalan I Gusti Agung Bagus Chandrastika Wangsa; I Made Agus Ariawan; I Nyoman Arya Thanaya
Jurnal Konstruksi Vol 23 No 2 (2025): Jurnal Konstruksi
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/konstruksi/v.23-2.2549

Abstract

This study aims to analyze the effect of asphalt heating duration and asphalt mixture aging simulation on the performance of stiffness, creep, and fatigue of road pavements. The research was conducted experimentally, with samples obtained from 30 asphalt core drillings in the field, each subjected to six treatments consisting of V1 (1 hour), V2 (2 hours), V3 (3 hours), V4 (6 hours), V5 (7 hours), and V6 (8 hours), all at a temperature of 155°C. Each variation consisted of five samples tested for asphalt properties, including penetration (SNI 2456:2011), ductility (SNI 2432:2011), viscosity (SNI 7729:2011), softening point (SNI 2434:2011), flash point (SNI 2433:2011), and fire point (SNI 2433:2011). The results showed that asphalt properties varied significantly with heating duration (V1–V6), indicating that longer heating had a clear impact on asphalt characteristics. The penetration values obtained for V1 to V6 were 67.17, 64.6, 62.4, 62.2, 58.75, and 49.5, respectively, while the viscosity values were 211 seconds, 206 seconds, 201 seconds, 198 seconds, 193 seconds, and 190 seconds. The softening points were 41.5°C, 43.5°C, 44.5°C, 45°C, 46°C, and 47°C, while the flash points were 318°C, 325°C, 329°C, 330°C, 332°C, and 335°C. The fire points were 330°C, 332°C, 335°C, 340°C, 345°C, and 350°C. The stability values of the mixture increased with heating duration, reaching 1883.5 kg, 2040.5 kg, 2130.2 kg, 2175.0 kg, 2197.4 kg, and 3254.4 kg. Conversely, the flow values decreased, becoming 3.81 mm, 3.05 mm, 2.79 mm, 2.29 mm, 2.16 mm, and 1.91 mm. The average Marshall quotient values for each heating variation were 494.36 kg/mm, 669.45 kg/mm, 762.41 kg/mm, 951.45 kg/mm, 1017.81 kg/mm, and 1235.91 kg/mm. This study can help optimize asphalt heating duration to improve pavement quality and durability. The findings also have the potential to serve as a basis for refining standards and policies in the design and maintenance of more resilient road infrastructure.
Analisis Risiko K3 Menggunakan Metode AS/NZS 4360 2004 dan HIRARC Pada proyek Kontruksi Mohamad Agus Dwi Kurniawan; Sony Susanto; Fitry Rahmawati
Jurnal Konstruksi Vol 23 No 2 (2025): Jurnal Konstruksi
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/konstruksi/v.23-2.2552

Abstract

The Occupational Health and Safety (OHS) practices in the Mrican Roya Cluster construction project by PT BJS Property were carried out using a descriptive quantitative approach and risk analysis based on the AS/NZS 4360:2004 standard. Data were collected through questionnaires distributed to 70 respondents from various positions, including directors, foremen, masons, and field workers. The collected data were analyzed using validity and reliability tests with the aid of IBM SPSS Statistics software to ensure the accuracy of the research instruments. Subsequently, risks were assessed using a combination of probability and severity scores classified within a risk matrix. The analysis results revealed that out of 12 risk items identified through hazard identification, 3 were categorized as high, 8 as medium, and 1 as low. The highest risks included falling from heights, being struck by heavy materials, and physical fatigue. The main contribution of this analysis is the provision of a risk prioritization map that can serve as a basis for decision-making in more targeted accident prevention and mitigation strategies. Following mitigation measures such as OHS training, the use of personal protective equipment (PPE), strict supervision, and evaluation of work procedures, risk levels decreased, with most high-risk items shifting to medium risk. The study concludes that implementing OHS risk management using the AS/NZS method and HIRARC in a planned, measurable, and sustainable manner is highly effective in reducing accident potential while simultaneously improving productivity in construction projects. These findings have significant practical implications, as the applied risk assessment method can be adapted for other construction projects, thereby helping companies create safer and more efficient work environments across different scales of development.
Analisis Kelayakan Ekonomi Pembangunan Jalan Baru Titik 7 dan 8 Ruas Singaraja–Mengwitani I Gede Wahyu Putra Winarta; Putu Alit Suthanaya; Dewa Made Priyantha
Jurnal Konstruksi Vol 23 No 2 (2025): Jurnal Konstruksi
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/konstruksi/v.23-2.2559

Abstract

The development gap between North and South Bali has driven the construction of a new road along the Singaraja–Mengwitani section as a provincial strategic project. This study aims to conduct an ex-post economic feasibility evaluation at Points 7 and 8 by analyzing savings in Vehicle Operating Costs (VOC) and value of time, assessing feasibility through both direct and indirect benefits (increase in Regional Own-Source Revenue/PAD), and testing the robustness of results through sensitivity analysis. The research method is quantitative, using secondary data and traffic performance analysis based on PKJI 2023. The quantification of VOC benefits refers to Ministry of Public Works Guidelines No: Pd T-15-2005-B, while investment feasibility is measured using NPV, BCR, and IRR under two scenarios. Scenario 1 considers only direct benefits, while Scenario 2 incorporates potential increases in Buleleng Regency’s PAD as indirect benefits. The results show that the project increases travel speed by 21 km/h and saves 1.14 minutes of travel time. Break-even analysis indicates that feasibility can be achieved merely by stimulating a real PAD growth of 3.62%, a highly realistic target compared to the region’s historical growth rate. It is concluded that the investment justification for this project lies in its role as a catalyst for regional economic development, rather than merely in transportation efficiency. This conclusion is robust, as the project’s strategic feasibility remains valid even under pessimistic scenarios. It is recommended that the government integrate regional economic impact analysis into the evaluation of future strategic projects. This study may serve as a framework for measuring indirect benefits in the form of potential PAD increases, which can become an important consideration in evaluating strategic projects that may conventionally appear economically unfeasible.

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