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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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EVALUASI PENGGUNAAN LPS PADA PROYEK KONSTRUKSI PEMBANGUNAN GEDUNG FASILITAS PENGEMBANGAN SKALA PILOT (GEDUNG NO 34) (STUDI KASUS: PEKERJAAN BORED PILE) Sudarsana, Abigail Gizka; Herzanita, Ayu
Construction and Material Journal Vol. 6 No. 2 (2024): Construction and Material Journal Vol. 6 No. 2 November 2024
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/cmj.v6i2.5986

Abstract

LPS is a project management system designed to control production in terms of project implementation schedules, aiming to enhance the relationship between work, performance, and productivity within a construction project. The object of this study was Building Project No. 34, which experienced delays in work on the lower structure, which caused delays in the duration of project implementation on subsequent work. In week 30, the project encountered delays in the lower structure work, resulting in a planned weight of 0.4920%, but the actual weight was only 0.4427%. Therefore, Building Project No. 34 tries to apply the LPS method, which is expected to improve project time performance. The study examines how LPS is used, what hinders it, and how to fix those issues in the No. 34 Building project. This study employed a questionnaire-based analysis of inhibiting factors and a time performance analysis. The results of the time performance analysis in week 30 were 0.3%, and in week 31 it was 0.2%. Using this planning simulation, the work could be completed on time or ahead of schedule (S Curve). There are a few things that make it hard to use LPS effectively: not having the right technical skills for it; believing that current technology is good enough that there is no need to implement LPS; not having clear standards and guidelines for its implementation; not being clear about each participant's roles, responsibilities, and functions; and lack of management involvement in providing motivation, training, and supervision, as well as discipline so that work is late.
PENGARUH PENERAPAN SISTEM MANAJEMEN KESELAMATAN KONSTRUKSI (SMKK) TERHADAP PERILAKU PEKERJA Paramita, Tiara; Kusumo Drajad S
Construction and Material Journal Vol. 6 No. 2 (2024): Construction and Material Journal Vol. 6 No. 2 November 2024
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/cmj.v6i2.6055

Abstract

Unsafe behavior can pose significant risks to construction activities, leading to work accidents. In relation to the potential risk of occupational hazards during construction, knowledge of construction safety in construction projects has become a fundamental need. The safety aspect of construction will not be able to run as it should without intervention from management in the form of a planned effort to manage it called the Construction Safety Management System. The implementation of SMKK, according to Permen PUPR No. 10 of 2021, consists of five SMKK elements that become standards of security, safety, health, and sustainability. Based on this, the researcher of this study aims to determine the factors that influence the implementation of SMKK on worker behavior and determine the effect of SMKK implementation on worker behavior. This research is in Apartment Project X, West Jakarta. This research uses quantitative methods with multiple regression analysis to process the data from the questionnaire with the help of SPSS. The results of the application of SMKK in project X were obtained by means of questionnaires and interviews. It was found that using the five elements of SMKK has a positive and significant effect on how the project workers behave. This was shown by simultaneous hypothesis testing. Based on the results of partial hypothesis testing, it shows that the Construction Safety Operation element has the highest regression coefficient and has a significant effect. The implementation of SMKK on project X has been implemented well but not maximally. There are still many workers who behave unsafely (unsafe action), this happens due to the lack of awareness and knowledge of workers regarding the risk of danger. Therefore, the application of construction safety operation elements must be maximally improved.
REDESAIN PILAR JEMBATAN AKIBAT POSISI PILE CAP YANG TIDAK MEMENUHI PERSYARATAN Indianto, Andi; Rizal, Shafaa Yosvi Rahmathullah
Construction and Material Journal Vol. 6 No. 1 (2024): Construction and Material Journal Vol. 6 No. 1 Maret 2024
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/cmj.v6i1.6059

Abstract

This research aims to find effective design alternatives for bridge pillars whose position must be shifted away from the existing gas pipe, which was originally 2m to more than 3m. This pillar shift is intended so that the position of the pile cap pillar meets the requirements set by the Minister of Mining and Energy number 300.k/38/m.pe/1997 regarding work safety in oil and gas distribution pipes. To get an effective design, several forms of pillar design were carried out without having to change the span of the bridge's upper structure. An effective design form is tipe 1 (pile cap tipe) bridge pillars rather than tipe 2 (single column), because tipe 1 pillars have an implementation time of 42 days while tipe 2 is 94 days, so the implementation of tipe 1 pillars is 52 days faster than the pillars. tipe 2. The results of the structural analysis, tipe 1 pillar (pile cap tipe) obtained pile cap reinforcement which functions as a pier head of D32-80 in the transverse direction and D32-150 in the longitudinal direction, with a foundation that directly functions as a pillar using concrete spun pile D800mm as many as 60 pieces which are stuck into the ground to a depth of 24 m.
PEMANFAATAN BOTTOM ASH PEMBAKARAN PLTSA SEBAGAI SUBSITUSI PASIR PENYUSUN PAVING BLOCK Krisdiansyah, Gilang; Simanihuruk, Bertinus; Handika, Nuraziz; Dewanti, Dian Purwita; Mutiara, Ayudia
Construction and Material Journal Vol. 6 No. 1 (2024): Construction and Material Journal Vol. 6 No. 1 Maret 2024
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/cmj.v6i1.6089

Abstract

Waste management in Indonesia poses a significant challenge, and to address this issue, the government has established waste-to-energy plants (Pembangkit Listrik Tenaga Sampah - PLTSa) in Bantar Gebang that generate bottom ash waste. This study focuses on utilizing bottom ash as a substitute for fine aggregate in the production of concrete paving blocks. The research aims to analyze the compressive strength, abrasion, and absorption properties of the paving blocks with various mixtures of bottom ash (0%, 10%, 30%, 50%, 60%, 80%, and 100%) at a curing age of 28 days. The results indicate that the use of bottom ash as a substitute for fine aggregate increases the compressive strength of the paving blocks. The mixture with 100% bottom ash exhibits the highest compressive strength due to the high content of calcium oxide and silicon dioxide, similar to cement content. However, the replacement of up to 50% of fine aggregate with bottom ash leads to an increase in abrasion values, indicating reduced abrasion resistance. On the other hand, paving mixtures containing 60% to 100% bottom ash show improved abrasion resistance compared to lower percentages. Absorption tests reveal that mixtures containing 10% to 100% bottom ash exhibit higher absorption values compared to the control sample without bottom ash, attributed to the high absorption capacity of bottom ash compared to sand. In conclusion, this study highlights that bottom ash from PLTSa can be effectively used as a substitute material in the production of paving blocks, leading to enhanced compressive strength and abrasion resistance. However, careful consideration of the percentage of substitution is essential to ensure compliance with the quality standards. This innovative approach has the potential to contribute to the reduction of negative impacts from PLTSa waste and offer a sustainable solution to waste management in Indonesia, promoting environmental conservation and improving infrastructure quality in the long run.
IMPLEMENTASI METODE MATERIAL REQUIREMENT PLANNING (MRP) PADA PERENCANAAN DAN PENGENDALIAN PERSEDIAAN BAHAN BAKU REINFORCING BAR Parningotan, Sepriandi
Construction and Material Journal Vol. 6 No. 1 (2024): Construction and Material Journal Vol. 6 No. 1 Maret 2024
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/cmj.v6i1.6346

Abstract

The resources of a manufacturing company must be good to increase productivity and optimize the result, effective for business operations and support production and business, especially in industry. One of the prerequisites for working is the availability of raw materials. Raw material availability is neither excessive nor insufficient to adversely affect inventory stability and costs. The total production of S.10 rebar during the year was 51,122 pieces, S.13 rebar 65,543 pieces, S.16 rebar 89,668 pieces and S19 rebar 130,972 pieces. Frequency of ordering raw materials, delivery time and storage costs of raw materials are determined by MRP method, batch technique. The raw material order price for a total of one year is IDR 5,528,600. The total cost of raw material storage for 1 year is IDR 87,750,567,6875. The total cost of purchasing raw material for 1 year is IDR 20,154,860,026,6875.
ANALISIS PENGENDALIAN RISIKO KESELAMATAN KONSTRUKSI PEKERJAAN BETON BERTULANG PROYEK X Yuliasthi, Hana Dwi Yuliasthi; Dradjat Sutjahjo, Kusumo
Construction and Material Journal Vol. 6 No. 1 (2024): Construction and Material Journal Vol. 6 No. 1 Maret 2024
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/cmj.v6i1.6433

Abstract

Project X is classified as a high-risk project. The sources of accidents that may occur can be attributed to two factors: unsafe conditions and unsafe behaviors. Potential hazards include falling from heights, being struck by formwork materials, being hit by scaffolding materials, being hit by iron, and skin irritation. Project X has implemented the Occupational Safety and Health Management System (SMKK) in accordance with Regulation of the Ministry of Public Works and Public Housing Number 10 of 2021, which includes the Construction Safety Plan document known as IBPRP.This research aims to identify the risk factors that may lead to accidents on Project X, particularly focusing on reinforced concrete work, and to examine the control measures implemented. Data collection involves observation to identify hazards and their controls. Subsequently, a questionnaire related to hazards and risk controls is developed, and project documents are reviewed. Statistical tests and document studies based on IBPRP and the project's Job Safety Analysis (JSA) are conducted for analysis.Based on the F-test, it is found that factors contributing to accidents in reinforced concrete work include human factors, materials, equipment, environment, and work methods. The implementation of construction safety risk controls for reinforced concrete work on Project X is considered good, with a safety risk control implementation rate of 85%. However, it is noted that not all risk control measures outlined in IBPRP and JSA for reinforced concrete work have been fully applied in the field.
ANALISIS PERBANDINGAN HEADWAY DAN METODE PEMBAYARAN PADA JAKARTA MASS RAPID TRANSIT (MRT JAKARTA) DAN SINGAPORE MASS RAPID TRANSIT (MRT SINGAPURA) Rahmawati, Roselina; Fatmawati, Leily; Mukhlisin, M.; Wicaksono, Teguh Mulyo; Megantoro, Alam; Setioko, Rafi; H, M. Luqmanul
Construction and Material Journal Vol. 6 No. 1 (2024): Construction and Material Journal Vol. 6 No. 1 Maret 2024
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/cmj.v6i1.6514

Abstract

The global population growth increased by 0.88% at the end of 2022 compared to the previous year. Jakarta and Singapore, as two densely populated areas in Southeast Asia, need to pay extra attention to the need for infrastructure, including adequate transportation systems. One of the prominent transportation modes in both regions is Mass Rapid Transit (MRT). MRT is an urban rail-based transportation mode aimed at providing regular and sustainable public services. The MRT system excels in capacity, speed, and reliability compared to other transportation modes, as it operates on fully separated tracks. Despite both regions having MRT systems, there are differences in several aspects. This research is conducted using a qualitative method, applying techniques such as the analysis of literature. The differing aspects between the Jakarta MRT and the Singapore MRT are headway (time between trains) and payment methods. The Singapore MRT has a smaller headway compared to the Jakarta MRT. The shorter the time, the better the service. In terms of payment methods, the Singapore MRT predominantly implements a cardless payment system, in contrast to the Jakarta MRT. The Jakarta MRT still offers the purchase of Single Trip Tickets and Multi Trip Tickets.
ANALISIS NUMERIK UNTUK MEMPREDIKSI DAYA DUKUNG PONDASI DANGKAL PADA TANAH LUNAK DENGAN DAYA DUKUNG RENDAH Elvirandra, Laura; Hamzah Fansuri, Muhammad; Dharma Saputra, Pungky; Hasanah, Mauliyatul; Citra Asokawati, Fajrina
Construction and Material Journal Vol. 6 No. 2 (2024): Construction and Material Journal Vol. 6 No. 2 November 2024
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/cmj.v6i2.6519

Abstract

This research aims to determine the types and dimensions of shallow foundations that are effectively used on difficult soils with low bearing capacity. The selection of foundation types and dimensions is based on the allowable ultimate bearing capacity to support the superstructure of a building. The analysis used Terzaghi's theory with Standard Penetration Test data. This study used a size of 0.30 m in width and 1.0 m in length. The groundwater table is located 6.0 meters from the ground surface. The next variations of width are 0.35 m and 0.4 m. Results of this study show that the most effective type of foundation was a palm foundation type with a width of 0.4 m. The analysis indicated that the width of the foundation was 0.4 m, and the groundwater level was 1.0 m below the base. The ultimate bearing capacity value is 148.16 kN/m²; the carrying capacity of the permit was 49.39 kN/m² with a column total load of 19.76 kN.
ANALISIS STABILITAS TIMBUNAN PROYEK PEMBANGUNAN JALUR GANDA JALAN KERETA API (KA) SEPANJANG-MOJOKERTO Wulan Anggarita, Ovilia; Putra Purnama, Paksitya; Nurtjahjaningtyas, Indra; Trisno Lestari, Rini
Construction and Material Journal Vol. 6 No. 2 (2024): Construction and Material Journal Vol. 6 No. 2 November 2024
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/cmj.v6i2.6630

Abstract

The construction of the Sepanjang-Mojokerto railway double track is an initiative to address the growing demand for railway transportation infrastructure. During the building of the double-track railroad, it is anticipated that the rail structure will endure the weight of traversing trains; hence, a stability study for settlement and sliding is essential. The settlement of the embankment between KM 49+500 and KM 49+750 was studied using sondir and borlog correlation data and then a geoslope model to see how stable the embankment was against sliding. The calculated findings indicate a reduction of 0.49 m to 1.49 m. The decrease is unsafe as it is above the permissible limit of 20 cm; achieving a decline to U90% requires around 0.9 years—15 years. Consequently, it is imperative to expedite the reduction using PVD and preloading. The PVD installation employs a triangle configuration with a spacing of 1.5 meters, requiring a duration of 16 to 20 weeks to achieve a 90% reduction. The stability control of the embankment against sliding on the railroad body yielded a safety factor (SF) value ranging from 1.63 to 2.33. SF > 1.5 indicates that the SF value is secure, surpassing the permissible threshold.
ANALISIS KINERJA BETON DENGAN AGREGAT HALUS PS BALL DI AIR LAUT Riandika, Muhammad; Mustofa, Amalia; Saputra, Jonathan
Construction and Material Journal Vol. 6 No. 1 (2024): Construction and Material Journal Vol. 6 No. 1 Maret 2024
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/cmj.v6i1.6853

Abstract

This study aims to determine the performance of concrete using the residual of steelmaking materials (Precious Slag Ball) as a partial substitution of fine aggregate. In this study, the test object was made with a water–cement ratio of 0.3 and using Precious Slag Ball’s proportions of 0%, 15%, 30% and 45% to the weight of fine aggregate. The test object was then immersed in sea water obtained from the estuary area. The fresh concrete test consists of slump test, initial setting time, and unit weight of fresh concrete. The hardened concrete test consists of unit weight of hardened concrete, compressive strength, and splitting tensile strength. In the 45% Precious Slag Ball variation, the use of Precious Slag Ball in concrete increases the maximum slump workability up to 32.25% and the unit weight value of fresh concrete up to 5.98%. In the setting time test, the fastest setting time is 261 minutes from the 15% Precious Slag Ball variation. In the hardened concrete test, the use of Precious Slag Ball increased the unit weight value of hardened concrete up to 4.94% at a variation of 45% Precious Slag Ball. The greatest value of concrete compressive strength test using 30% of the Precious Slag Ball as a substitution of fine aggregate variation found at the age of 3, 7, 14 and 28 days. The use of Precious Slag Ball is proven able to increase the compressive strength and tensile strength as the concrete tensile strength increases up to 7.12% at a variation of 30% Precious Slag Ball.

Page 18 of 21 | Total Record : 210

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