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INDONESIA
MEDIA KOMUNIKASI TEKNIK SIPIL
Published by Universitas Diponegoro
ISSN : 08541809     EISSN : 25496778     DOI : -
Core Subject : Engineering,
Civil Engineering, Building, Construction & Architecture
Media Komunikasi Teknik Sipil (ISSN 0854-1809) published twice in a year, in July and December. The article can be product of researches, scientific thoughts or case study, in civil engineering and isn’t formed by politics, commercialism, and subjectivity unsure. This scientific journal contains articles of thought and research results in Civil Engineering that have never been published in scientific journals or other media.
Arjuna Subject : -
Articles 17 Documents
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Search results for , issue "Volume 31, Nomor 2 (2025)" : 17 Documents clear
Pengaruh Penambahan Aspal Emulsi pada Lapis Pondasi Hasil Daur Ulang dengan Semen (CTRB) terhadap Kinerja Struktural Perkerasan Lentur Hariyadi, Eri Susanto; Mahardika, Mutiara
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 31, Nomor 2 (2025)
Publisher : Department of Civil Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/mkts.v31i2.73022

Abstract

The scarcity of natural materials that meet specifications for road rehabilitation has encouraged the utilization of recycled pavement materials, particularly cement-treated recycled base (CTRB). Despite its widespread use, CTRB is susceptible to shrinkage cracking, which can lead to reflective cracking in the surface layer and reduce pavement service life. This study investigates the performance of CTRB and a modified mixture incorporating emulsified asphalt—designated as IRBCAE (In-place Recycling with Cement and Asphalt Emulsion)—to mitigate shrinkage-induced cracking. Both mixtures were prepared using recycled aggregates containing 5.34% residual asphalt, with a composition of 49% surface course and 51% base course aggregates. Resilient modulus testing was conducted to evaluate mechanical behavior, and pavement structural responses were analyzed using KENPAVE software. The results indicate that IRBCAE exhibits viscoelastic characteristics with superior fatigue cracking resistance, whereas CTRB demonstrates higher stiffness and greater resistance to permanent deformation. In practical application, CTRB requires a thicker asphalt overlay to prevent reflective cracking, while IRBCAE enables the use of a thinner asphalt layer. The differences in structural performance between the two mixtures provide a basis for selecting suitable stabilization methods for recycled base layers.
Kajian Eksperimental Perilaku Dinding Bata Terkekang Berplester akibat Beban Siklik Kusumastuti, Dyah; Apriani, Indriana; Suarjana, Made
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 31, Nomor 2 (2025)
Publisher : Department of Civil Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/mkts.v31i2.74887

Abstract

Confined masonry walls are commonly found in non-engineered housings in Indonesia. To better understand their behavior and to find improvement to the current practice, experimental studies have been conducted using full-scale (3m × 3m) wall specimens, which represent simple housing wall panels. In this research, the performance of plastered confined masonry walls in resisting lateral loads was studied experimentally. Three wall specimens were constructed following general construction practice in Indonesia. All specimens were plastered on both sides. Model 1 was constructed without continuous anchorage, Model 2 with two continuous anchorages with 1m spacing, and Model 3 with two continuous anchorages with 0.5m spacing. The specimens were subjected to cyclic in-plane lateral loads. The parameters evaluated were damage pattern and failure mechanism, load capacity, stiffness, ductility, and energy dissipation. The study revealed that adding plaster improved the wall’s lateral capacity. The continuous anchorage shows less significant improvement on plastered walls compared to non-plastered walls, but still increased stiffness, ductility, and energy dissipation. The study verifies that having plaster and continuous anchorage improve structural performance while delaying damage. Analytical study reveals that all models have adequate capacity to resist the design seismic load based on the current code.
Analisis Dinamik Struktur Kolom Kantilever dan Portal di Ponton sebagai Simulasi Turbin Angin Terapung dan Rumah Terapung terhadap Gelombang Kusumaningrum, Patria; Agastya, Anggito Tri; Tambunan, Olivia Debora Papuani
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 31, Nomor 2 (2025)
Publisher : Department of Civil Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/mkts.v31i2.72286

Abstract

Floating wind turbines and floating houses are innovative solutions to global challenges such as land scarcity and rising sea levels. This study investigates the dynamic responses of both structures under wave excitation. The floating wind turbine is modeled as a cantilever column with a lumped mass at the top, while the floating house is idealized as a single-story portal frame. Both structures are supported by pontoons, which are represented as beams on elastic foundations using the Winkler foundation theory. Wave loads are modeled based on linear wave theory and Froude-Krylov forces. The analysis is conducted in the time domain using the Finite Element Method and Newmark-Beta integration scheme. The results show that the floating wind turbine experiences a maximum drift of 61.986 mm, heave of 104.310 mm, and pitch of 0.141°, whereas the floating house experiences a maximum drift of 35.587 mm, heave of 60.621 mm, and pitch of 0.408°. The highest internal forces occur in the pontoon section of both structures, indicating that the pontoon plays a significant role in resisting wave loads. This study contributes to a better understanding of the dynamic behavior of floating structures and demonstrates that a simplified 2D modeling approach can be effectively used as an initial step in designing stable and efficient floating systems.
Pengaruh Substitusi Abu Daun Nanas Terhadap Workabilitas, Densitas, dan Kuat Tekan Beton Normal Junaidi, Ahmad; Sutama, Adji; Septriansyah, Verinazul
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 31, Nomor 2 (2025)
Publisher : Department of Civil Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/mkts.v31i2.71147

Abstract

The increasing demand for concrete in the construction industry has led to high cement production, contributing to global CO₂ emissions. This research examines the potential of pineapple leaf ash as a partial cement substitution material to produce more environmentally friendly concrete. An experimental study was conducted with seven variation percentages of pineapple leaf ash substitution (0%, 7.5%, 10%, 12.5%, 15%, 17.5%, and 20%) by cement weight, using 150x300 mm cylindrical specimens. Testing included workability, density, and concrete compressive strength at 28 days. The results showed that slump values decreased with increasing percentages of pineapple leaf ash, from 9.5 cm in normal concrete to 3.0 cm at 20% substitution. Concrete density increased from 2250 kg/m³ in normal concrete to a maximum value of 2335 kg/m³ at 12.5% substitution, then decreased at higher percentages. Optimal compressive strength was achieved at 12.5% substitution with a value of 34.70 MPa, increasing 22.79% compared to normal concrete (28.26 MPa). This research concludes that the optimal pineapple leaf ash substitution is at 12.5%, resulting in significant improvements in concrete density and compressive strength, although with a decrease in workability that must be considered in its application.
Pengaruh Serbuk Cangkang Kerang Terhadap Kuat Tekan Bebas Tanah Lempung Lunak Pesisir Kusumastuti, Dyah Pratiwi; Priastiwi, Yulita Arni; Sarminingsih, Anik
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 31, Nomor 2 (2025)
Publisher : Department of Civil Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/mkts.v31i2.71174

Abstract

As an archipelagic country, Indonesia has extensive coastal areas that are intensively developed for infrastructure. Kosambi District in Tangerang Regency is one of the rapidly growing coastal regions due to its proximity to Soekarno–Hatta International Airport. However, the area is predominantly underlain by soft marine clay soils with low bearing capacity and high compressibility, which pose challenges for infrastructure development. To improve soil stability, soil stabilization methods are required to enhance unconfined compressive strength and undrained shear strength. This study aims to analyze the effect of cockle shell powder addition on the unconfined compressive strength and undrained shear strength of soft marine clay. Laboratory tests were conducted on untreated soil and soil stabilized with 5%, 10%, 15%, and 20% cockle shell powder by dry weight of soil. The results indicate that the optimum performance was achieved at a 10% addition, resulting in a 24.86% increase in unconfined compressive strength compared to untreated soil. In addition to improving strength, the addition of cockle shell powder reduced water content and enhanced interparticle bonding, thereby improving soil stability. These findings demonstrate that cockle shell powder has strong potential as an effective stabilizing material for soft coastal clay soils.
Pengaruh Aktifitas Alat Berat dan Peledakan Terhadap Stabilitas Lereng Timbunan Tambang Batubara Suparno, Fanteri Aji Dharma; Aminah, Siti; Haeruddin, Haeruddin; Rini, Utari Retno Sulistyo; Mulyani, Kurnia Dewi; Manek, Emanuel Grace; Assyarbini, Muhammad Akbar
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 31, Nomor 2 (2025)
Publisher : Department of Civil Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/mkts.v31i2.69177

Abstract

Open-pit mining generates voids backfilled with overburden, forming artificial slopes susceptible to landslides. Improper slope design and external factors such as heavy equipment loads, blasting vibrations, and groundwater may trigger instability. This study examines the stability of a disposal slope adjacent to the blasting zone at PT X Coal Mine in East Kalimantan, Indonesia. The research uses secondary data from PT X. including geotechnical parameters and operational details, Slope stability was evaluated via the Limit Equilibrium Method (Bishop and Morgenstern-Price) and Finite Element Method (FEM). Initial analyses revealed critical safety factors (FoS) of 0.853 (Bishop, Morgenstern-Price) and 0.520 (FEM), indicating high instability under combined dynamic and hydrogeological stresses. A slope redesign was proposed, improving FoS to 3.932 (dry) and 3.523 (wet) via Limit Equilibrium, and 1.570 (dry) and 1.370 (wet) via FEM. These value;s comply with the safety threshold (FoS ≥ 1.1) specified in KEPMEN ESDM No. 1827 K/30/MEM/2018, ensuring operational safety. The study underscores the necessity of integrating geotechnical and operational constraints in slope design to mitigate landslide risks in open-pit mining.
Probabilitas Tingkat Kerapuhan pada Bangunan Masjid Beton Bertulang Bertingkat Rendah Akibat Beban Seismik Prayuda, Hakas; Maulana, Taufiq Ilham; Fattiha, Desti Lailatul Mufida; Haq, Muhammad Mundzirul; Husna, Renita
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 31, Nomor 2 (2025)
Publisher : Department of Civil Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/mkts.v31i2.66061

Abstract

Runtuhnya bangunan merupakan salah satu penyebab yang paling dominan adanya korban jiwa saat terjadi gempa bumi. Untuk mengurangi dan mencegah terjadinya kerusakan hingga runtuhnya bangunan selama gempa bumi, perlu dilakukan evaluasi pada bangunan terhadap beban seismik. Dengan evaluasi tersebut tentunya dapat memprediksi tingkat probabilitas terjadinya kerusakan pada bangunan apabila terjadi gempa bumi. Penelitian ini menjelaskan tingkat probabilitas dengan menggunakan kurva kerapuhan untuk mengevaluasi kinerja bangunan masjid. Indonesia merupakan salah satu negara dengan jumlah masjid terbanyak di dunia tentunya menjadi tantangan tersendiri untuk mengatasi kemungkinan kerusakan bangunan akibat gempa bumi. Selain itu, banyak juga bangunan masjid yang dibangun atas asas gotong royong tanpa menggunakan perhitungan teknik secara detail. Oleh sebab itu, evaluasi pada bangunan masjid sangat perlu dilakukan. Penelitian ini menggunakan aplikasi simulasi numerik STERA 3D dengan menggunakan data gempa riwayat waktu. Terdapat lima jenis data riwayat gempa yang digunakan pada variasi penelitian ini. Selain itu, bentuk ketidakberaturan bangunan juga menjadi salah satu faktor yang diteliti. Dengan dilakukannya analisis pushover, maka diperoleh output kurva kapasitas untuk perhitungan menggunakan metode HAZUS sehingga dihasilkan kurva kerapuhan seismik. Hasil evaluasi menunjukkan dengan variasi data riwayat waktu yang berbeda menghasilkan tingkat probabilitas kerusakan yang berbeda-beda.
Analisis Keselamatan Simpang Jalan Arteri Primer di Kabupaten Sleman Menggunakan Metode TCT Ihza, Zulfan Muhammad; Mahmudah, Noor
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 31, Nomor 2 (2025)
Publisher : Department of Civil Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/mkts.v31i2.74706

Abstract

Traffic safety is an important aspect of a sustainable transportation system. The increase in number of vehicles and high mobility make intersections as the points with the highest risk of accidents. The Special Region of Yogyakarta (DIY), as a province with dynamic tourism and economic activities, has a significant accident rate, with Sleman Regency contributing approximately 34.8% of the total 4,730 accident cases in DIY in 2018. This condition emphasizes the need for a comprehensive traffic safety analysis in this region. This study aims to analyze the safety level of intersections on primary arterial roads in Sleman Regency using the Swedish Traffic Conflict Technique (TCT). The approach was conducted by ranking road sections using the Accident Equivalent Number (AEK) and observing traffic conflicts using the TCT method. The results of the study show that all intersections observed have a high-level of conflict with a Time to Accident (TA) value that is close to or exceeds the critical threshold. Speed has been proven to be the main determinant of increased risk and severity of conflict. Therefore, this study emphasizes the need to calibrate the Swedish TCT threshold based on vehicle type so that the analysis results remain contextual to Indonesian traffic conditions. Technical recommendations focus on speed limits and the implementation of traffic engineering interventions.
Strategi Peningkatan Keselamatan Transportasi Jalan Susanto, Eko Agus; Sofilda, Eleonora; ledoh, diyono bambang
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 31, Nomor 2 (2025)
Publisher : Department of Civil Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/mkts.v31i2.70387

Abstract

The increasing number of road traffic accidents and the high fatality rate in Indonesia, encourage the Government to develop strategies and preventive measures to reduce accidents in the short, medium and long term, although until now the fatality rate is still high. The purpose of this study is to analyze the influence of regulatory factors, humans, traffic signs, supervision and enforcement, and vehicles with technological variables as intervening factors on road safety in an effort to reduce the level of traffic accidents in Indonesia. The location of the study was conducted in 34 provinces in Indonesia, using quantitative data analysis through questionnaires on 500 respondents, with the SEM method (Smart Pls 4.0). The results of the study explain that regulatory factors, humans, traffic signs, supervision and enforcement, and vehicles with technological variables have a positive and significant influence on traffic safety, which means that an increase in the performance of the independent variables has a positive impact on traffic safety. The recommendations from this study are the priority of traffic safety improvement policies, namely: increasing active and passive safety in vehicles, using safety technology in vehicles, utilizing CCTV and e-ticketing for supervision and enforcement, fulfilling ffective and efficient traffic signs and safety campaigns for road users and improving regulations.
Analisis Proyek Konstruksi pada Sektor Minyak dan Gas Menggunakan Pendekatan ISO 21500:2021: Studi Kasus PT PGAS Solution Asa, M Fanshurullah; Junita, Regina Intan
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 31, Nomor 2 (2025)
Publisher : Department of Civil Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/mkts.v31i2.75681

Abstract

PT PGAS Solution, as a certified construction company in Indonesia, applies ISO 21500:2021 as a guideline for managing its project activities, and this study aims to evaluate the level and effectiveness of its implementation while identifying the key obstacles encountered in practice. A quantitative descriptive–explanatory approach was employed using a questionnaire based on the ten core subjects outlined in ISO 21500:2021 Clause 7, which was distributed to 20 project personnel through a saturated sampling method, with data analyzed using descriptive statistics, validity and reliability tests, assumption testing, and multiple linear regression. The results indicate that the overall implementation level falls into the “Fairly Good” category, with an average score of 19.795, and the instrument demonstrates strong reliability, as evidenced by a Cronbach’s Alpha value of 0.938. Furthermore, regression analysis shows that information and documentation management has the most significant positive influence on system implementation, while procurement and lessons learned contribute negatively due to challenges in process optimization and organizational knowledge retention, with an adjusted R² value of 69.7% indicating a moderately strong model fit in explaining the variation in implementation levels. These findings highlight the need for improved procurement systems, stronger institutional learning mechanisms, and enhanced integration of ISO 21500:2021 practices to strengthen project delivery performance within the oil and gas construction sector.

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