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Journal of Civil Engineering and Vocational Education
Published by Universitas Negeri Padang
ISSN : 26226774     EISSN : -     DOI : https://doi.org/10.24036/cived
Core Subject : Education, Social, Engineering,
Civil Engineering, Building, Construction & Architecture Education Engineering Environmental Science Transportation
CIVED Is a periodical scientific journal published three times a year, in March, June and September by the Department of Civil Engineering, Faculty of Engineering, Padang State University. The CIVED journal is a medium for publishing the results of scientific research by students, academics, practitioners and observers in the field of civil engineering including structure, construction management, water resources management, transportation, geotechnical, environmental engineering and learning.
Arjuna Subject : Teknik (semua kategori) - Bangunan dan Konstruksi
Articles 299 Documents
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Digitalization-Based Geometric Design of Open Pit Mining Blast Using Visual Block Programming Method MS, Murad; Irwansyah, M. Azhar
CIVED Vol. 11 No. 3 (2024): September 2024
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/cived.v11i3.671

Abstract

Gilgal Batu Alam Lestari (PT. GILBAL) is a company specializing in granodiorite rock mining. In its mining operations, PT. GILBAL employs blasting to break down materials, simplifying the loading and processing stages. The design of blast hole geometry requires precise calculations to achieve an optimal configuration, ensuring that blast fragmentation aligns with operational needs. To facilitate the blast hole geometry calculations, an application is needed that delivers accurate results and can be accessed anytime, anywhere. One approach to developing this application is through visual block programming using the Kodular tool. The research aims to design a system programming concept for an application capable of processing calculations for both blast geometry design and blast fragmentation outcomes, implementing this application program for actual blasting operations in the field, and achieving high accuracy in the application design's performance when applied in real-world field conditions. Application testing for blast hole geometry calculations demonstrated that the R.L. Ash method achieved an average accuracy of 97.39%, the C.J. Konya method reached 98.49%, the Anderson method achieved 99.93%, and the Langefors method reached 99.95%. In terms of calculating blast fragmentation, the R.L. Ash method attained an average accuracy of 89.57%, the C.J. Konya method 93.49%, the Anderson method 86.50%, and the Langefors method 99.81%.
Evaluation of Concrete Compressive Strength with Coral Stone as a Fine Aggregate Replacement Ibrahim, Ibrahim; Sulianti, Ika; Andini, Dita Putri; Sentosa, Riandi; Panjaitan, MM Lanny W; Lukas, Lukas
CIVED Vol. 11 No. 3 (2024): September 2024
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/cived.v11i3.672

Abstract

This study examines the effect of using coral stone as a substitute for fine aggregate on the compressive strength of concrete. Tests were conducted with varying coral stone replacement percentages ranging from 0% to 100%. The results showed that coral stone can enhance the compressive strength of concrete, with an optimal replacement level of 80%, resulting in a 21.16% increase compared to normal concrete. However, replacements above 80% led to a decline in compressive strength, particularly at the 100% replacement level, which showed a 9.37% reduction in strength compared to normal concrete. This decrease was caused by increased porosity, varying aggregate quality, and an imbalance in the water-cement ratio, which disrupted the hydration process and microstructure formation of the concrete. Based on these findings, coral stone can be an effective alternative to replace fine aggregate such as sand, but its use should be limited to 80% to maximize the strength improvement without reducing performance.
Design Micro-Hydro Power Plant Water Resources System for Small Medium Enterprise Rice Mill in Nagari Kamang Hilia Agam Sandra, Nevy; Arifin, Ari Syaiful Rahman; Arbi, Yaumal; Rifwan, Fitra; Mirshad, Emilham; Zuwida, Nidal
CIVED Vol. 11 No. 3 (2024): September 2024
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/cived.v11i3.673

Abstract

Processing rice products into rice requires further processing, where the grain harvested from farmers is processed into rice. The Nagari Binaan Community Service team from Padang State University will later develop this process. Farmer groups say that the availability of continuous and cheap electricity is their obstacle in producing good and cheap rice products. Counseling and assistance in making civil buildings capture turbulence water micro-hydro power plants is a solution to partner problems offered by the community service team of the Nagari program assisted by Padang State University. The output of the Nagari Fostered Program will be used to build a 5000-watt capacity power plant, supporting the need for free and environmentally friendly electricity. This aligns with the government's renewable energy program for 2030, which aims to produce 25% of the national electricity from renewable sources. This program is planned for 3 (three) stages, where the first year is mapping and detailed engineering design in the form of reports and design drawings. The second year is in the form of civil construction, and the third year's target is the installation of electrical machines and panels for commissioning. There will be training for partners, such as farmers in Kanagarian Kamang Hilia, Agam.
Analysis of Technology Acceptance Model for Implementation of Sustainable Construction Water Resources Project in Kediri City Sony Susanto; Winarto, Sigit; Mahardana, Zendy Bima
CIVED Vol. 11 No. 3 (2024): September 2024
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/cived.v11i3.682

Abstract

Water resource projects in Kediri include various initiatives aimed at improving the quality of life of the community and preserving the environment. This study identifies factors that influence the acceptance of environmentally friendly technologies in sustainable water resource projects in Kediri City, such as the construction of Embung Kalipang, Ngrayut, Dhoho Airport, water source conservation in Sumber Dadapan, and the development of Sumber Banteng. The installation of Automatic Water Level Recorder (AWLR) also helps in real-time monitoring of water levels for flood mitigation. Using the Technology Acceptance Model (TAM) approach, this study analyzes two main variables, namely perceived ease of use (PEOU) and perceived usefulness (PU) of green technology. The survey data collected were analyzed using the Partial Least Squares (PLS) method, which revealed that perceptions of ease of use and benefits of technology influence attitudes and intentions to adopt technology in construction. Although the potential for adoption is high, challenges such as lack of knowledge and implementation costs are major barriers. These findings provide insights for formulating policies that support the implementation of environmentally friendly technologies and become the basis for developing sustainable projects in Kediri in the future.
Lid Analysis using EPA SWMM 5.2 Application (Case Study: DPR Road Section, Padang City) Nifen, Silta Yulan; Saputra, Afdal; Roza, Angelalia
CIVED Vol. 12 No. 1 (2025): March 2025
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/cived.v12i1.655

Abstract

Padang City has experienced rapid development in infrastructure, but the limited green open space presents a significant challenge to the city's drainage system, resulting in frequent flooding during the rainy season which has a negative impact on the economy, health, and safety of the community. This study aims to identify the intensity of rainfall, analyze the implementation of Low-Impact Development (LID) technology and without LID implementation using EPA SWMM 5.2 software in the DPR Street area, Dadok Tunggul Hitam Village, Padang City. The practical implications of the implementation of Low Impact Development (LID) for general city management are to reduce drainage loads by managing rainfall locally, improve water quality by reducing rainfall pollution, reduce flood risks by managing rainfall effectively, improve city aesthetics by creating green and beautiful open spaces, and reduce infrastructure costs by managing rainfall locally and reducing the need for large drainage systems. The main benefits of the research results for flood management policies in Padang City are to improve the quality of life of city residents by creating a healthier and more comfortable environment, increase city resilience to climate change and natural disasters, and improve resource management efficiency by managing rainfall locally. Using 10 years of rainfall data from BMKG and primary data related to drainage channel dimensions, hydrological and hydraulic analyses and drainage system simulations were carried out. The results of the study showed that the application of LID, such as Rainfall Garden, Rainfall Barrel, Bioretention Cell, Infiltration Trench, and Permeable Pavement, application of LID an area can reduce the depth of inundation by 57,717%, the volume of runoff by 74.247%, and the peak runoff by 68,069%. The implementation of LID in an area of ​​73.54 Ha has proven effective in reducing the risk of flooding, strengthening drainage infrastructure, and providing sustainable solutions in dealing with urbanization in Padang City.
Evaluation of the Implementation of Payments for Building Construction Projects using APBD Funds According to Contract Law Mardhiyah, Agil Resfani; Hidayat, Benny; Ophiyandri, Taufika
CIVED Vol. 12 No. 1 (2025): March 2025
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/cived.v12i1.683

Abstract

Late payment is a common problem that often occurs in construction projects and can hinder project completion. Previous studies have stated that factors that influence late payment include the financial condition of the project owner and poor business management as well as delays in payment by the project owner and others. Previous studies only discussed the factors that cause late payment. This study aims to identify factors that influence late payment and find solutions to overcome them. The research method used is qualitative with in-depth interviews with parties involved in construction projects, such as PPK and Contractors. Data were processed using interview transcripts and analyzed with thematic analysis to identify emerging patterns or themes. The results of the study indicate that the procedures for implementing payments have been regulated in contracts and related regulations. Factors that cause late payment include poor communication, administrative negligence, empty regional treasury, and unclear regulations. The proposed solution is to conduct training for HR and hold daily or weekly meetings involving all related parties. This research is expected to contribute to increasing payment efficiency in construction projects. This study has limitations, namely the lack of quantitative data and local context, limited samples, focusing on internal factors.
Evaluation of Development Projects on Special Allocation Funds Sources for the Pariaman City Self-Help Housing Program Setia, Rhama Budi; Ophiyandri, Taufika; Suraji, Akhmad
CIVED Vol. 12 No. 1 (2025): March 2025
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/cived.v12i1.685

Abstract

This study evaluates the success rate of the program (target accuracy, satisfaction, and community self-reliance) of the special allocation fund (DAK) self-help housing assistance in Pariaman City, a coastal area with a majority of low-income residents and many uninhabitable houses. This program is part of the government's efforts to overcome poverty and deal with slum areas, as stipulated in the Minister of PUPR Regulation No. 7 of 2022. Previous studies may have only focused on one or two dimensions. This study uses a mixed method of quantitative and qualitative. Quantitative data were collected through a questionnaire with a Likert scale to measure target accuracy, satisfaction, and community self-reliance. Qualitative data were collected through in-depth interviews with beneficiaries and related parties to understand their context and experiences related to the program. Data were analyzed quantitatively using descriptive statistics and qualitatively using thematic analysis. The results showed that the program was right on target (more than 80% of respondents gave the highest score), the level of satisfaction was high (more than 70% of respondents gave a score of 4 or 5), and community participation was very good (84.29% of beneficiaries were involved in house construction on average). These findings provide strong empirical evidence of the success of the DAK self-help housing assistance program in Pariaman City. The local government can use the results of this study to strengthen the DAK self-help housing assistance program, for example by increasing budget allocation or expanding the reach of the program.
Structural Improvement Planning of Road Pavement with Modified Porous Asphalt Mixture using AASHTO 1993 Aszharri, Arief; Susetyo, Dimas Ariezky; Sari, Nadra Mutiara
CIVED Vol. 12 No. 1 (2025): March 2025
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/cived.v12i1.688

Abstract

The new technology that is being developed is porous asphalt pavement structures, which are made for road segments with less dense traffic. This structure is designed to include facilities such as parking lots, bicycle lanes, pedestrian sidewalks, and tennis court areas. This study involves the analysis of calculation results based on secondary field data and experimental data from laboratory-scale experiments. The design of the road pavement is based on the AASHTO 1993 method. The field data used includes information on the LHR (Load History Record) of the Dawuan Highway (Cikampek) section, the CBR (California Bearing Ratio) value of the subgrade, and the existing pavement conditions (including existing pavement structures and deflection data). Meanwhile, experimental data comes from testing the resilient modulus of porous asphalt mixtures using Cariphalte asphalt and additional gilsonite material with optimal levels. The resilient modulus value was obtained from laboratory testing using the Universal Material Testing Apparatus (UMATTA). The results of this study produced a pavement design using a gilsonite mixture that produced a thinner thickness than standard AC-WC materials. For example, for segment 3 with a modified mixture, the pavement thickness is 13 cm, while the standard AC-WC produces a thickness of 20 cm. It can be seen that using a modified Gilsonite mixture requires an overlay layer 7 cm thinner than using a standard AC-WC mixture.
Comparative Analysis of Crawler Crane Productivity in Girder Erection: A Theoretical Study and Direct Observation Bawana, Massayu Sekar; Puspita, Milinda Nur Indah; Putra, I Nyoman Dita Pahang
CIVED Vol. 12 No. 1 (2025): March 2025
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/cived.v12i1.698

Abstract

Every construction project, in general, has a specific and systematic method implementation program, such as the utilization of heavy equipment in girder erection work. This focus is selected based on the high technical complexity of girder erection work, so the productivity of heavy equipment greatly affects the work's success. The aim is to analyze the suitability between theoretical calculation of crawler crane productivity and direct observations in girder erection work and identify the factors that cause the productivity difference. This study combines the theoretical calculations and direct observations to evaluate the productivity of crawler cranes in girder erection work. Based on theory, the method of calculating crane productivity is done by analyzing the operating cycle time and productivity of crawler cranes. With the direct observations method, actual data is taken in the field, which is then calculated as the result of its productivity. From the results of this study, it is found that the results of crawler crane productivity in direct observation in the field have a higher productivity value compared to the productivity value in theoretical calculations, namely 1.51 units/hour, while in theoretical calculations, the productivity value is 1.060 units/hour. The difference in value is caused by several factors in the field, such as weather conditions, operational obstacles, and the operator's efficiency.
Identifying and Analyzing Risks of Under Bid Price Contracts on Government Construction Projects in West Sumatra Puteri, Amy Rahmadian; Suraji, Akhmad; Hidayat, Benny
CIVED Vol. 12 No. 1 (2025): March 2025
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/cived.v12i1.702

Abstract

This study analyzes the risks associated with under bid price contracts on construction projects in West Sumatra, a phenomenon that shows a significant increase from 7.28% in 2015 to 32% in 2020. This study is focused on the local context of West Sumatra, providing new insights into competitive dynamics and business practices that may be unique to this region, in contrast to previous studies that may be general or regional in nature. The research objective is to identify and analyze the risk factors that arise from this under bidding practice. Through a specially designed questionnaire survey distributed to 30 local contractors in West Sumatra, and data processing using the SIRISPRO application, this study quantified and identified three main risks: specification deviations and design changes, contract criticism, and price increases during execution. The results showed that contractors responded to these risks by conducting evaluation and inspection of specifications, correction of deviations, and evaluation of personnel and acceleration of work. The implication of these findings is the need to evaluate government project contract management policies, particularly related to bidding regulations and more comprehensive bid evaluation, to mitigate the risk of under bidding and ensure the sustainability of quality construction projects in West Sumatra.

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