cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
Syaiful
Contact Email
-
Phone
+6281282738786
Journal Mail Official
jrs.astonjadro@uika-bogor.ac.id
Editorial Address
Gedung Ir. Prijono Hardjosentono Universitas Ibn Khaldun Bogor Jl. KH. Sholeh Iskandar KM 2 Kedung Badak Tanah Sareal Kota Bogor 16161
Location
Kota bogor,
Jawa barat
INDONESIA
Astonjadro
Published by Universitas Ibn Khaldun Bogor
ISSN : 23024240     EISSN : 26552086     DOI : http://dx.doi.org/10.32832/astonjadro
Core Subject : Engineering,
Civil Engineering, Building, Construction & Architecture
Astonjadro: Jurnal Rekayasa Sipil adalah jurnal ilmiah dibidang teknik sipil p-ISSN : 2302-4240 dan e-ISSN : 2655-2086. Jurnal Rekayasa Sipil Astonjadro diterbitkan untuk mengapresiasi dan memberikan informasi ilmiah bagi peneliti, dosen serta para profesional. termasuk dalamnya pengembangan model dan konsep penelitian yang mengacu secara berkesinambungan. Jurnal Astonjadro diterbitkan oleh Fakultas Teknik dan Sains Universitas Ibn Khaldun Bogor, terbit dua kali dalam satu tahun yaitu bulan Juni dan Desember.
Arjuna Subject : Teknik (semua kategori) - Teknik Sipil dan Struktur
Articles 507 Documents
 44   45   46   47   48 
Analysis of the Utilization of Hair Fibers as an Eco-Friendly Concrete Construction Material Iqbal, M.; Bachtiar, Erniati; Gusty, Sri; Indrayani, Poppy; Marzuki, Ismail; Chaerul, Muhammad
ASTONJADRO Vol. 14 No. 3 (2025): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v14i3.17921

Abstract

The handling of human hair waste is still not optimal, as it is often discarded or burned, leading to environmental pollution. This research aims to utilize human hair waste as a mixture in normal concrete, resulting in a fiber-reinforced concrete product with marketable value, providing a more beneficial use compared to simply being disposed of or burned. The purpose of this study is to analyze the mechanical properties of concrete using human hair fibers. The mechanical properties to be analyzed include compressive strength, tensile splitting strength, and flexural strength. This research is based on laboratory experiments. The variations in the amount of fiber used in the study are 0.25%, 0.5%, 1%, and 1.5% of the cement weight in the concrete mix. Based on the results of mechanical property testing, it can be concluded that the optimal addition of 1% human hair fibers yielded a compressive strength of 22.86 MPa, tensile splitting strength of 2.69 MPa, and flexural strength of 4.13 MPa.
Study of ISO 9001:2015 Quality Management System Implementation in RTG Pad Manufacturing Project at Perawang Port Harahap, Ido Rizky; Hasibuan, Ghina Chitya Raphita; Anas, Ridwan
ASTONJADRO Vol. 14 No. 3 (2025): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v14i3.17922

Abstract

ISO or (International Organization for Standarization) is a worldwide non-governmental organization with representatives in many countries that creates and disseminates standards in the commercial, industrial and proprietary fields. The ISO organization itself was founded in Geneva, Switzerland in 1947. The construction industry in Indonesia continues to experience rapid development. The number of construction projects causes more and more construction service companies to develop and causes increasingly fierce competition between construction service companies (Contractors). Increased competition between companies makes companies aware of quality. One of the important requirements is the ownership of ISO 9001 Certificate. This study aims to determine the level of implementation of a quality management system based on ISO 9001: 2015, constraints that occur in the implementation of the ISO 9001: 2015 quality management system and strategies to improve the implementation of the ISO 9001: 2015 quality management system in the RTG Pad Manufacturing project at Perawang Port. In this study the method used is a quantitative method that is descriptive. Data is collected through questionnaires so that it is expected to obtain accurate data on the implementation of the quality management system. From the results of data analysis of the implementation of the ISO 9001: 2015 quality management system in the RTG Pad Manufacturing project at Perawang Port, it was found that the implementation level was 81.09% in the "Good" category. The obstacles faced in its application include the lack of commitment from top management being one of the reasons why the implementation of ISO 9001 is not running optimally. Strategies that companies can do to improve the implementation of the quality management system include top management maintaining consistency in implementing the principles of the ISO 9001: 2015 quality management system.
Evaluation of Trans Metro Deli Bus Performance in Corridor 2 in an Effort to Improve the Quality of Public Services Silalahi, Putri Permata; Hasibuan, Gina Cynthia Raphita; Anas, Ridwan
ASTONJADRO Vol. 14 No. 3 (2025): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v14i3.17923

Abstract

TransMetro Deli Urban Transport is a bus-based transportation system in Medan City that started operating on 22 November 2020, with a Bus Rapid Transit (BRT) transportation system. TransMetro Deli buses provide 5 corridors around the area in Medan City. For Route K2M Terminal Amplas - Bank Indonesia - Terminal Amplas has a fleet of 10 main units and 2 backup units and passes 36 stops. This research begins with collecting data in the field directly and then analyzed including load factor, Headway, stopping time, and travel time on Weekdays and Weekends on the K2M route. Based on the analysis results obtained for Load Factor in Weekdays for Morning, Afternoon, and Evening are 14%, 8%, and 20%, while for Weekend are 12%, 15%, and 20%. For Headway in Weekdays in the Morning, Afternoon, and Evening are 10 minutes 16 seconds, 10 minutes 27 seconds, and 11 minutes 31 seconds, while in Weekend are 9 minutes 47 seconds, 9 minutes 40 seconds, and 10 minutes 2 seconds. For Downtime on Weekdays in the Morning, Afternoon, and Evening are 9 seconds, 9 seconds, and 10 seconds, while for Weekend are 7 seconds, 7 seconds, and 8 seconds. For Travel Time in Weekdays in the Morning, Afternoon, and Evening are 1 hour 13 minutes, 1 hour 16 minutes, and 1 hour 18 minutes, while in Weekend are 1 hour 3 minutes, 1 hour 14 minutes, and 1 hour 13 minutes.
Optimization Strategy for Winning Construction Management Consultant Services Tenders in Indonesia: Delphi and SWOT Studies Gantika, Eko; Wahyudi, Slamet Imam; Wibowo, Kartono
ASTONJADRO Vol. 14 No. 3 (2025): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v14i3.17925

Abstract

This study aims to formulate an optimization strategy for winning tenders for construction management consulting services in Indonesia based on the results of Delphi and SWOT analyses. The Delphi method is used to obtain consensus from experts on factors that influence tender winning, while the SWOT analysis helps group these factors into categories of strengths, weaknesses, opportunities, and threats. The results show that the company's main strengths are project experience, quality of human resources, and financial stability. The main weaknesses include inefficient administrative management and incomplete documents. The greatest opportunities arise from national infrastructure projects and partnerships with foreign companies, while the greatest threats are increasingly fierce competition and complex changes in tender regulations. Based on these results, the recommended optimization strategy involves improving project management, utilizing technology, and strengthening relationships with project owners. This study provides strategic guidance that can help consulting firms improve their competitiveness in the tender process.
Parking Space Requirement Analysis at the University of North Sumatra General Hospital Susila, Hermanta; Hasibuan, Gina Cynthia Raphita; Anas, Ridwan
ASTONJADRO Vol. 14 No. 3 (2025): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v14i3.17952

Abstract

Hospitals are places of activity that provide vital services to the community. In reality, most hospitals are faced with the problem of providing parking facilities. One of them is the difficulty of providing parking space facilities that match the actual level of demand. The aim of the research is to obtain information on parking demand by modelling car and motorcycle parking. The methods used are linear regression and non-linear regression methods. On poly days for car parking demand with the equation: Y₁=8.166×10-89× 41.386 X₁ and motorcycles with the equation: Y₂=7553.126-1112960.605/X₁, Y₂=6033.071-1392502.512/X₂, and Y₂=6389.337-1570378.771/X₃. On non-poly days for car parking demand with the equation: Y₁=868,250-3,250X₂ and motorcycles with the equation: Y₂=-457,000 + 6,000X₄.
Innovation in the Use of Rigid Pavement Waste in Recycled Concrete: Challenges and Solutions to Improve Mechanical Performance Lubab, Lubab; Antonius, Antonius; Sumirin, Sumirin
ASTONJADRO Vol. 14 No. 3 (2025): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v14i3.17956

Abstract

The use of rigid pavement waste as recycled aggregate in concrete has become a focus of research in an effort to improve sustainability in the construction industry. This article discusses the main challenges in using rigid pavement waste as recycled aggregate, especially related to the mechanical strength of concrete, such as compressive and flexural strength. In addition, this article also explores various innovations in concrete mix design that can overcome the mechanical performance weaknesses of recycled concrete. Some of the solutions discussed include the use of reinforcing fibers, alternative binders, and more efficient production technologies. The research shows that these innovations can significantly improve the performance of recycled concrete with rigid pavement waste aggregate, making it a viable option to support more environmentally friendly infrastructure development.
Initial Analysis of Floating Fiber Embankment Construction: Working Principle, Material Characteristics, and Potential Applications in Coastal Areas Sunaryo, Sunaryo; Wahyudi, Slamet Imam; Ni'am, Moh. Faiqun
ASTONJADRO Vol. 14 No. 3 (2025): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v14i3.17976

Abstract

Sea level rise due to climate change and land subsidence in coastal areas have increased the frequency of tidal flooding, especially in Indonesia. Conventional embankments that are generally used to hold back seawater have limitations in adapting to fluctuations in water levels. This study evaluates a floating fiber embankment as an innovative solution for tidal flood mitigation. The embankment is designed to automatically adapt to changes in sea level using elastic and corrosion-resistant fiber materials. Numerical simulations based on the finite element method (FEM) were performed using ANSYS software to analyze the stress, strain, and deformation of the floating fiber embankment under hydrostatic pressure. The simulation results showed a maximum stress of 8231 x 10^6 Pa with a maximum deformation of 0.43 meters. Laboratory experiments using a 1:20 scale prototype validated the simulation results, with a maximum stress of 8210 x 10^6 Pa and a maximum deformation of 0.41 meters. The results showed that the floating fiber embankment has good adaptive capabilities in resisting hydrostatic pressure and functions automatically without requiring manual intervention. This technology has the potential to be an effective and sustainable solution for tidal flood mitigation in coastal areas, especially in areas that often experience land subsidence and sea level rise due to climate change.
Analysis of the Level of Traffic Fatality of Road Section Conditions in Tanjung Balai City Sihombing, Alexander Tuahta; Pratikso, Pratikso; Mudiyono, Rachmat
ASTONJADRO Vol. 14 No. 3 (2025): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v14i3.18007

Abstract

There are various kinds of driver behavior in Tanjungbalai city such as aggressive driving, illegal racing, against the direction and many more which are generally dominated by workers with different professions and students. A person's attitude and pattern of thinking will be influenced by that pattern of thinking, which usually results in certain patterns of behavior. Most traffic accidents occur due to human error, such as traffic violations. Every year, 1.35 million people die from traffic accidents worldwide. This means that every 24 seconds one person loses their life on the roads around the world. A person can violate traffic laws due to intentionality, ignorance, or ignorance of the applicable rules. This study explains, which means testing hypotheses to explain the causal relationship between variables. This type of research was chosen because the goal to be achieved was to explain the relationship and effect of the questionnaire as the main data collection tool. Field research requires tools to support it. The following tools and materials were used by researchers including stationery, cameras (documentation) and survey forms Traffic Accident Analysis. Data Collection Techniques The research data must be collected to obtain the necessary data and information. The following is the data collection process used in this study, namely Primary Data Survey Results where primary data collection is carried out by direct observation at the research location. Secondary Data where vehicle data and vehicle volumes used as writing material are based on direct observation data in the field and data assistance from SAMSAT and the PUPR Office of Tanjungbalai City. Field Observation is by making direct observations of motorists who are around the research subject to collect information needed for further research. As well as documentation Data collected from activities carried out at the research location or survey during the activity. This research was conducted in Tanjung Balai City, North Sumatra Province with research targets or respondents being Students, Students, and Communities who live or are in the research area and own and use motorized vehicles (cars and motorcycles) spread across Gading Village, Sijambi Village, and Pahang Village, Tanjung Balai City.Research Implementation Time Where the research took place for four days, from March 11 to 14, 2024.  The research location is located at Ir. Sutami street, Husni Thamrin street, Abd Rahman Street, and SMA 3 street, Tanjung Balai City. It can be seen that the most frequent traffic accidents in the research location are on the Ir. Sutami section of Tanjungbalai City which has an accident rate which if rounded off the value is 36 events/year. From the calculation example above, it is known that the value of the fatality rate of the Ir Sutami road section, Datuk Bandar District, Tanjungbalai with TF = 47232.003> UCL = 23903.06 then the road section is an Accident Prone Area. The accident-prone road section that has the highest fatality rate is Jl. SMA 3, Tanjungbalai with TF = 105462,206 and UCL = 61843,521.
Analysis of Factors Affecting the Quality Achievement of Road Preservation Work on the Long Segment Scheme of National Roads in West Sumatra Gusman, Gusman; Yossyafra, Yossyafra; Yosritzal, Yosritzal
ASTONJADRO Vol. 14 No. 3 (2025): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v14i3.18021

Abstract

The long segment road preservation scheme represents the government's effort to achieve strategic objectives for well-maintained roads and standards across the segments. Initially, all national road maintenance programs were implemented through self-management by individual road segment managers or Project Implementation Units (PPK), utilizing a conventional contract system executed periodically and focusing solely on the primary works for the effective road length. Routine maintenance of functional lengths was conducted by service users through self-management. Currently, the long segment road preservation scheme is set to replace conventional/self-management contracts, with the expectation of addressing longstanding issues. However, in practice, the implementation of the long segment road preservation projects still encounters challenges, as evidenced by instances of project delays resulting in penalties, substandard construction quality, and overdue project completion. Therefore, this research aims to identify the variables influencing the quality achievement of the long segment road preservation scheme and to ascertain which factors have the most significant impact. Utilizing the Delphi method, we gathered experts with relevant expertise in national road preservation under the long segment scheme in West Sumatra and collected their opinions. Based on the results of our survey, the factors deemed most significant by the experts affecting the quality achievement of the long segment road preservation are material factors, followed by equipment factors, quality testing standards, labor factors, and finally, work method factors. Consequently, several aspects warrant attention in future long segment road preservation projects to ensure quality achievement, including: (1) Utilizing materials that meet quality requirements, (2) Ensuring the suitability of the heavy equipment used, (3) Conducting regular calibrations of the Asphalt Mixing Plant (AMP) and other quality testing equipment, (4) Enhancing labor skills through various training programs, and (5) Adjusting work methods to align with other quality standards.
Analyzing Impact of Balinese Regional Policies Vertical Building Development Limitation Bagus, Putu Genta Ananda Este
ASTONJADRO Vol. 14 No. 3 (2025): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v14i3.18094

Abstract

Nowadays, ancient culture practices in which then derived into current practices mostly answer the problem in all side of things. Balinese culture is not that different from all of them. Most Balinese people have general understanding of tri hita karana (three ways to reach harmony) concept as the root of Balinese culture. The concept itself explains around how to reach harmony by making mutual relationship with nature, social lives, and the divine. From that, people in Bali derived the concept into various things including urban and rural planning. tri angga (three bodies) is one of the concepts that states regional planning must follow certain rules to reach harmony. This bodies consist of temple, people's working area, and nature which symbolizes the level of consecration of human bodies. From this concept, Bali regional development policies then adjusted to preserve cultural value of Bali. This policies states that any building built within the region must follow the regulation to get the certificate to further develop a project/building. In building development part there is one interesting regulation that states certain type of building cannot planned or developed past the height of a coconut tree, which then reworded into fifteen meters. But this case make development and/ or urban expansion move into more horizontal way. Horizontal development was a way to compensate the same amount of people that will use the facility compared to develop vertically, in turns use large area of landmass that can accelerate the speed of land decline and green open spaces which Balinese people sought to protect. This acceleration also accompanied with small island area, static land size, and sea level rise from climate change. This research aims to find whether existence of both limitation and the speed of land development can proceed sustainably

Page 46 of 51 | Total Record : 507

 44   45   46   47   48 

Filter by Year

2012 2025


Reset
Filter By Issues
All Issue Vol. 14 No. 4 (2025): ASTONJADRO Vol. 14 No. 3 (2025): ASTONJADRO Vol. 14 No. 2 (2025): ASTONJADRO Vol. 14 No. 1 (2025): ASTONJADRO Vol. 13 No. 3 (2024): ASTONJADRO Vol. 13 No. 2 (2024): ASTONJADRO Vol. 13 No. 1 (2024): ASTONJADRO Vol. 12 No. 3 (2023): ASTONJADRO Vol. 12 No. 2 (2023): ASTONJADRO Vol. 12 No. 1 (2023): ASTONJADRO Vol. 11 No. 3 (2022): ASTONJADRO Vol. 11 No. 2 (2022): ASTONJADRO Vol. 11 No. 1 (2022): ASTONJADRO Vol. 10 No. 2 (2021): ASTONJADRO Vol. 10 No. 1 (2021): ASTONJADRO Vol. 9 No. 2 (2020): ASTONJADRO Vol. 9 No. 1 (2020): ASTONJADRO Vol. 8 No. 2 (2019): ASTONJADRO Vol. 8 No. 1 (2019): ASTONJADRO Vol. 7 No. 2 (2018): ASTONJADRO Vol. 7 No. 1 (2018): ASTONJADRO Vol. 6 No. 2 (2017): ASTONJADRO Vol. 6 No. 1 (2017): ASTONJADRO Vol. 5 No. 2 (2016): ASTONJADRO Vol. 5 No. 1 (2016): ASTONJADRO Vol. 4 No. 2 (2015): ASTONJADRO Vol. 4 No. 1 (2015): ASTONJADRO Vol. 3 No. 2 (2014): ASTONJADRO Vol. 3 No. 1 (2014): ASTONJADRO Vol. 2 No. 2 (2013): ASTONJADRO Vol. 2 No. 1 (2013): ASTONJADRO Vol. 1 No. 2 (2012): ASTONJADRO Vol. 1 No. 1 (2012): ASTONJADRO More Issue