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Construction and Material Journal
Published by Politeknik Negeri Jakarta
ISSN : -     EISSN : 26559625     DOI : https://doi.org/10.32722/cmj
Core Subject : Engineering,
Civil Engineering, Building, Construction & Architecture
Jurnal Construction And Material adalah jurnal Teknik Sipil yang mencakup bidang keahlian Dasar Teknik, Struktur, Material, Manajemen Konstruksi, Tata Laksana, Transportasi, Sumber Daya Air dan Lingkungan, Geoteknik, Pengukuran dan Jalan Raya. Jurnal ini diperuntukkan bagi mahasiswa, pengajar, dan masyarakat luas yang ingin mempublikasikan karya ilmiahnya dan belum pernah dipublikasikan dimanapun. Jurnal ini terbit secara berkala, tiga kali dalam setahun (Maret, Juli, dan November). - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Construction And Material Journal is one of journals in the discipline of Civil Engineering from vocational school, covering basic of Civil Engineering; Structure, Material Technology, Construction Methods, Construction Management, Water Resources and Environmental Engineering, Geotechnical Engineering, Surveying and Highway Engineering. This journal is intended for engineering student, lecturer, professional and engineering assosiation member in civil works, and other community in Civil Engineering. The journal offers the Authors to publish their paper works in the Civil Engineering from their research result, work experience, etc and never published it in elsewhere. The journal issues would be published in three times a year (March, July and November). - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Arjuna Subject : Teknik (semua kategori) - Teknik Sipil dan Struktur
Articles 210 Documents
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Pemanfaatan Tanah Gambut Sebagai Bahan Campuran Tanah Laterit Ditinjau Dari Nilai CBR (California Bearing Ratio) Hesar, Annisa Fitria; Saputri, Anzeli; Rafani, Muhammad; Wattini, Wattini
Construction and Material Journal Vol. 7 No. 1 (2025): Construction and Material Journal Vol. 7 No. 1 Mei 2025
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/cmj.v7i1.7119

Abstract

West Kalimantan, particularly the city of Pontianak, is known for its abundant peat soil reserves. Peat soil forms from the accumulation of organic material derived from decomposed vegetation under water-saturated conditions. In construction, the use of local materials such as peat soil can be a strategic alternative to reduce project costs and minimize environmental impact. In this study, peat soil was utilized as an additive in laterite soil mixtures intended for subgrade applications. The purpose of using peat is to reduce construction costs and minimize negative environmental impacts. This research aims to determine the effect of varying peat content—10%, 20%, 30%, 40%, and 50%—on the California Bearing Ratio (CBR) of laterite soil. The results show that the CBR value of natural laterite soil is 32.69%. When mixed with 10% peat, the CBR decreases to 12.53%; at 20%, it drops to 10.25%; at 30%, it further reduces to 6.8%; and at 40%, it falls to 4.56%. For mixtures containing 50% or more peat, no measurable CBR value was obtained. These findings indicate a significant reduction in bearing capacity as peat content increases.
Perencanaan Perencanan Struktur Beton Bertulang Pada Gedung Sewa Perkantoran 7 Lantai Tahan Gempa Dengan Sistem Ganda Di Jalan Jendral Ahmad Yani Kota Pontianak Rizki Falah, Andi Muhammad; Ramadhansyah Pulungan, Anugrah Prima; Anggraini, Irene; Sasongko, Hartanto Wahyu
Construction and Material Journal Vol. 7 No. 1 (2025): Construction and Material Journal Vol. 7 No. 1 Mei 2025
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/cmj.v7i1.7203

Abstract

The planning of rental office buildings in Pontianak City is an effort to minimize horizontal land use and prevent new issues, such as land crises. The structural planning carried out certainly needs to pay attention to several aspects, one of which is the influence of earthquakes. Essentially, earthquakes tend to impact structures at their joints; thus, reinforced concrete structures are designed using a moment-resisting frame system with a strong column-weak beam concept, combined with shear walls, referred to as a dual system. This design allows the structure to mitigate earthquake vibrations. The 7-story rental office building is located on Jl. Jendral Ahmad Yani, Bansir Laut, Kec. Pontianak Tenggara, Pontianak City, West Kalimantan Province. The earthquake load was planned to use the 2019 Indonesia Earthquake Map and the response spectrum method in accordance with SNI 1726-2019. Load calculations followed SNI 1727-2020, while the design of reinforced concrete structures for building construction complied with SNI 2847-2019. The analysis of the requirements and stability of the structure against the earthquake load by the spectrum response method has met the requirements and stability as an earthquake-resistant structure with a dual system. The maximum inter-level deviation that occurred was 8.411 mm for the x direction and 4.815 mm for the y direction.
STUDI KOMPARATIF HEADWAY DAN METODE PEMBAYARAN PADA MRT JAKARTA JALUR LINTAS UTARA – SELATAN DAN MRT BANGKOK JALUR BIRU Rahmawati, Roselina; Rahman, Yusuf Noufal; Hidayati, Alfiyana; Khozinunniam, Khozinunniam; Atmaja, Ilman
Construction and Material Journal Vol. 7 No. 1 (2025): Construction and Material Journal Vol. 7 No. 1 Mei 2025
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/cmj.v7i1.7290

Abstract

The ongoing process of increasing urbanization has resulted in substantial growth in the urban population—a phenomenon that is particularly evident in major cities such as Jakarta and Bangkok, which have the largest populations in Southeast Asia. The rapid population growth in these cities has created a pressing need for efficient transportation systems. The MRT (Integrated Transportation Mode) is poised to address these challenges by enhancing mobility. This study undertakes a comparative analysis of the operational performance of the Jakarta MRT and the Bangkok MRT, with a particular focus on headway and payment methods. The research method employed was descriptive quantitative with a comparative approach, wherein data was obtained through a literature study and documentation from secondary sources, including official reports and previous research. The main variables compared were headway, which shows how well the service is working, and payment method, which shows how easy it is for passengers to make transactions. The results of the study indicate that the Bangkok MRT exhibits shorter headways compared to the Jakarta MRT. The temporal compression of the service interval is indicative of its efficacy. In terms of payment methods, the Bangkok MRT's flexibility in offering various options provides a clear advantage in terms of convenience for foreign users, while the Jakarta MRT continues to prioritize the convenience of local users.
Perbandingan kuat tekan beton menggunakan pasir pantai dengan bahan aditif dan tanpa aditif serta perendaman air tawar dan air laut Harits, Emil; Satria, Muhammad Fiqri; Wattini, Wattini; Utomo, Satriyo
Construction and Material Journal Vol. 7 No. 1 (2025): Construction and Material Journal Vol. 7 No. 1 Mei 2025
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/cmj.v7i1.7362

Abstract

This study evaluates the effect of silica fume additives on concrete compressive strength and concrete characteristics. Silica fume is known to improve the quality of concrete through pozzolanic reactions that improve microstructure and reduce porosity. In this study, concrete with silica fume content of 6%, 7%, 8%, and 9% of the weight of cement was produced and tested. Testing was carried out at the age of 14 days to assess the compressive strength of concrete and concrete density. With the maximum increase recorded in the mixture with 8% silica fume in construction, concrete is an important component. This study indicates that the addition of silica fume additives to concrete can increase the compressive strength of the material. Based on this, ordinary concrete is not very resistant to sulfuric acid solutions found in seawater. After 14 days of immersion, the effects of sulfuric acid began to reduce the compressive strength of concrete in both freshwater and seawater, with normal concrete dropping from 19.60 MPa to 19.42 MPa, 6% silica fume concrete in freshwater from 20.04 MPa to 19.91 MPa, seawater concrete with 7% silica fume from 20.09 MPa to 19.95 MPa, with 8% silica fume from 20.22 MPa to 20.10 MPa, and with 9% silica fume from 20.18 MPa to 20.06 MPa. In conclusion, silica fume additives can increase the compressive strength of concrete; the higher the percentage of silica fume additives used, the higher the compressive strength.
ANALISIS BIBLIOMETRIK PENELITIAN PENGGUNAAN AGREGAT DAUR ULANG DALAM BETON BERPORI TREN DAN PERKEMBANGAN 2019-2024 Noorfauzi, Ahmad Ridhani; Kurniawan, Budi; Nabillah, Jihan Alya
Construction and Material Journal Vol. 7 No. 1 (2025): Construction and Material Journal Vol. 7 No. 1 Mei 2025
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/cmj.v7i1.7434

Abstract

This research was conducted to present a comprehensive bibliometric analysis of research trends and developments using recycled aggregates in pervious concrete from 2019 to 2024. The Publish or Perish application was used to collect bibliometric data from Google Scholar metadata relevant to the research topic. Publish or Perish is free software with a non-commercial license issued by its developer and used for academic purposes. 200 relevant publications were analysed to identify research patterns, collaboration networks, and emerging topics in this field. The results show a fluctuating but generally increasing trend in publications, with the highest activity in 2020 (43 publications) and sustained interest through 2023 (39 publications). Recycled Concrete Aggregate (RCA) emerged as the dominant research focus (22% of material-specific studies), followed by industrial waste materials (11%). The network analysis reveals increased international collaboration and a greater focus on sustainability aspects. This study identified major clusters of research on mechanical properties, durability, and permeability optimization. Through the analysis, important insights are presented for sustainable construction researchers and practitioners with the progress that has been made, as well as areas that require further investigation in the development of pervious concrete made from recycled materials.
IDENTIFIKASI AKTIVITAS PEKERJAAN PEMANCANGAN DENGAN METODE INNER BORING PADA PROYEK PEMBANGUNAN TANGGUL PENGAMAN PANTAI NCICD Fadilah, Rifdah; Saputra, Pungky Dharma; Siagian, Gian Asnawi
Construction and Material Journal Vol. 7 No. 1 (2025): Construction and Material Journal Vol. 7 No. 1 Mei 2025
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/cmj.v7i1.7463

Abstract

Coastal infrastructure development is a strategic initiative to mitigate tidal flooding in North Jakarta. One of the main projects supporting this effort is the construction of a coastal protection embankment under the National Capital Integrated Coastal Development (NCICD) program. This study aims to identify the stages involved in pile driving using the inner boring method for the NCICD Phase A embankment construction. Compared to conventional methods, the inner boring method was selected due to its advantages in minimizing noise, vibration, and environmental pollution. A mixed-method approach was employed, including video analysis of construction methods, project documentation, surveys, and expert validation. The research identified six primary activities in the pile-driving process: sling installation, pile lifting, shifting, and adjusting the drilling point, auger installation, drilling, and excavation disposal. Survey results showed that nearly all respondents fully agreed with the identified sequence of activities, with two exceptions—sling installation (93%) and pile lifting (87%). Expert validation confirmed full (100%) approval of all identified activities. These activities were subsequently structured into a Work Breakdown Structure (WBS) to improve the efficiency and effectiveness of construction operations. The expert validation results indicate that the identified activity sequence can serve as a reference for similar coastal construction projects. This study is expected to contribute to future embankment construction planning by optimizing time, resources, and workplace safety.
ANALISIS KRITERIA PEMILIHAN METODE KONSTRUKSI CAPPING BEAM TANGGUL PENGAMAN PANTAI NCICD JAKARTA UTARA Norita, Khansa; Saputra, Pungky Dharma; Z, Yanda Dwira Firman
Construction and Material Journal Vol. 7 No. 1 (2025): Construction and Material Journal Vol. 7 No. 1 Mei 2025
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/cmj.v7i1.7464

Abstract

The annual flooding that affects the capital city of the Republic of Indonesia is a critical issue being addressed through solutions outlined in the NCICD (National Capital Integrated Coastal Development) master plan. The capping beam, which forms the upper structure of the embankment, breaks waves, unites the spun pile series, and maintains the stability of the spun pile. The main objective of this study is to identify the criteria for selecting the capping beam construction method in the NCICD coastal protection embankment development project. The method used is a systematic approach to literature published in the form of articles or journals and scientific publications. The results of the study show that there are nine criteria for selecting the method of capping beam construction. The criteria that are widely discussed and have a dominant influence are the cost criteria and environmental conditions, with each having a percentage of 19%. This study provides valuable insights for academics and practitioners in developing effective strategies for construction method selection.
ANALISIS TEBAL PERKERASAN LENTUR METODE MDP 2017 DENGAN SOFTWARE KENPAVE Rizal, Rikki Sofyan; Prihutomo, Nuzul Barkah; Yelvi, Yelvi
Construction and Material Journal Vol. 7 No. 1 (2025): Construction and Material Journal Vol. 7 No. 1 Mei 2025
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/cmj.v7i1.7546

Abstract

The existence of the Bawen-Salatiga toll road has caused an increase in the volume of vehicles on the Tingkir Road section, Salatiga City. In the first year of the opening of the toll gate, the maximum volume of vehicles per day was 23,937, while in the second year there were 26,203 vehicles passing through per day. This number continues to experience a significant increase over time. In order to reduce the potential for traffic congestion, PT Trans Marga Central Java plans to widen the road section. This study aims to determine the thickness of the pavement and the cost that will be used in the Jalan Tingkir widening project, Salatiga City. The pavement thickness calculation employs the 2017 road pavement design manual method (MDP) and utilizes Kenpave software for structural analysis. The second edition of the Central Java Province Construction Work Unit Price (HSP) for clan buildings is used as a reference for determining the cost of pavement work. Based on the results of the analysis, the thickness of the pavement layer was obtained: 40 cm for the AC-WC layer, 60 cm for the AC-BC layer, 80 cm for the AC base layer, and 30 cm for the class A foundation layer with a planned traffic load of 3.85 x 10⁶. ESAL. As for the strength value tested with Kenpave software, the repetition value of fatigue crack load (Nf) was 3.70 x 1012, the repetition value of groove crack load (Nd) was 4.41 x 106, and the repetition value of permanent deformation load was 3.19 x 1011. Based on the analysis of the cost budget plan, the cost for the pavement work was Rp9,019,773,857.81. The flexible pavement with a thickness of 48 cm can withstand the weight of fatigue cracking, groove cracking, and permanent deformation.
ANALISA KEKUATAN KONSTRUSKI DOUBLE BOTTOM KAPAL AKIBAT PERUBAHAN UKURAN MANHOLE SEBAGAI UPAYA UNTUK MENINGKATKAN KESELAMATAN PELAYARAN DI ALKI II Jamal Ikhwani, Rodlian; Hariyono, Hariyono; Mujib Syadzali, Abdul; Alamsyah, Alamsyah; Syahab, Husein
Construction and Material Journal Vol. 7 No. 2 (2025): Construction and Material Journal Vol. 7 No. 2 Oktober 2025
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/cmj.v7i2.7858

Abstract

This study analyzes the strength of the ship's double bottom construction due to changes in manhole size to improve shipping safety in Indonesian Archipelagic Sea Lane II (ALKI II). The study was conducted at Taboneo Anchorage, South Kalimantan, which is a busy shipping route. The initial stage includes measuring the ship's structure and tidal data, as well as collecting secondary data in the form of construction drawings and material specifications for General Cargo type ships. Next, structural modeling was carried out using the Finite Element Method (FEM) approach with reference to Indonesian Classification Bureau (BKI) Rules 2025. The cargo load and bottom load were calculated and input into the model. Three variations of manhole sizes were tested: 350 x 450 mm, 400 x 600 mm, and 400 x 800 mm. The simulation results show that at 350 x 450 mm, the maximum stress is 111.23 N/mm² and the displacement is 4.9 mm, still safely below the BKI permit limit (150 N/mm²). At a size of 400 x 600 mm, the stress increases to 124.68 N/mm² with a displacement of 5.32 mm, which remains safe and recommended. However, the size of 400 x 800 mm produces a stress of 283.23 N/mm² and a displacement of 9.79 mm, exceeding the allowable limit and thus risking structural failure. The maximum recommended manhole size is 400 x 600 mm to maintain construction strength and navigation safety in ALKI II.
ANALISIS PERCEPATAN WAKTU PROYEK DENGAN METODE CRASHING DAN LAST PLANNER SYSTEM (LPS): STUDI KASUS PROYEK PEMBANGUNAN GEDUNG FASILITAS PENGEMBANGAN PRODUK SKALA PILOT (GEDUNG NO.34) Maharani, Tiara; Herzanita, Ayu
Construction and Material Journal Vol. 7 No. 2 (2025): Construction and Material Journal Vol. 7 No. 2 Oktober 2025
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/cmj.v7i2.5985

Abstract

The problem of delay remains a major challenge in the construction world. During the implementation of construction projects, delays are often caused by obstacles or unplanned problems. Delays lead to the duration of project execution not as planned in the work contract. Many ways are done to overcome project schedule delays such as the crashing time acceleration method and the Last Planner System (LPS). The crashing method is carried out by accelerating the duration of project completion by carrying out three systems, namely increasing manpower, changing work time (shifts) and adding work time (overtime). Meanwhile, the LPS is a planning system based on collaboration, integrated commitment between works by involving people who are directly responsible and understand the work in a production unit. This study aims to analyze the acceleration of time with the Crashing method and with the LPS then compare the effectiveness of time acceleration between the two methods. Case study from the Pilot Scale Product Development Facility Building (Building No.34). The problem is what level of efficiency in both methods of time acceleration will be analyzed. The implementation of crashing with alternatives shift work reduces the project duration by 22 days, whereas the simulation of the LPS increases the actual weight compared to planning. The difference between the two method is that the crashing method is applied after delays occur, while the LPS accelerates work and increases productivity by utilizing continuous team collaboration.

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