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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 8 Documents
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Search results for , issue "Vol. 4 No. 2 (2022): Construction and Material Journal Vol. 4 No. 2 Juli 2022" : 8 Documents clear
PENGARUH SERBUK BAN BEKAS SEBAGAI BAHAN TAMBAH PADA CPHMA DENGAN VARIASI SUHU PEMADATAN TERHADAP KARATERISTIK MARSHALL Indah Handayasari Halim; Irma Sepriyanna
Construction and Material Journal Vol. 4 No. 2 (2022): Construction and Material Journal Vol. 4 No. 2 Juli 2022
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/cmj.v4i2.4593

Abstract

Buton asphalt is a kind of natural asphalt found in Indonesia. The government is recently trying to develop various ways so that the use of Buton asphalt can be optimized to meet the demand for quality asphalt supplies for road pavements. CPHMA is a product from the development of Buton asphalt which has the advantage that it can be spread in conditions of air temperature (known as Cold mix) and elevated temperature (known as Hot mix). In this study, tire powder was used in addition to variations of 0%, 2.5%, 7.5% and 12.5% on CPHMA asphalt with variations in compaction temperature of 30oC, 60oC, 90oC, 120oC, and 150oC. Based on the results of tests carried out, the use of used tire powder from motor vehicle waste can improve the performance of CPHMA with an additional percentage of 2.5% at a compaction temperature of 150oC to meet the specified specifications. Keywords: CPHMA, Tire Powder, Marshall.
KUAT TEKAN BETON DENGAN SUBSTITUSI PARSIAL SISA BUBUT BESI SEBAGAI AGREGAT HALUS Anggara Yunanda; Rafki Imani; Rita Nasmirayanti
Construction and Material Journal Vol. 4 No. 2 (2022): Construction and Material Journal Vol. 4 No. 2 Juli 2022
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/cmj.v4i2.4710

Abstract

One of the concrete technologies developed to obtain good compressive strength of concrete is additional material for iron lathe waste obtained from the residue of the iron turning process. This study aims to determine the effect of iron lathe waste as a fine aggregate additive on the compressive strength of concrete. The compressive strength test of concrete was carried out based on The SNI standard 1974:2011. The sample making of the specimens was carried out by varying 0%, 1.5% and 2.5% of iron lathe waste from the weight of fine aggregate in a concrete mixture with a concrete compressive strength of 29.05 MPa. Concrete samples were tested at the age of 7 days, 14 days, and 21 days. The test results show that the maximum compressive strength of concrete is achieved by normal concrete (0%) which is 28.96 MPa at the age of 21 days of concrete. While the value of the compressive strength of concrete after being given a mixture of iron lathe waste decreased. The optimum concrete compressive strength with the addition of iron lathe waste was obtained at 24.63 MPa with a mixture of 1.5% at the age of 21 days of concrete. The decrease in the compressive strength of concrete due to the addition of iron lathe waste. It occurs because of the air trapped in the concrete, causing the concrete to be hollow and not solid, so that the compressive strength of the concrete decreases. Keywords: Fine aggregate, Strength of concrete, Waste iron, Concrete technology.
ANALISIS MUTU STRUKTUR BETON BERTULANG PROYEK PEMBANGUNAN X-CHANGE MALL 2 Dandi Laksamana; Ayu Herzanita; Imam Hagni Puspito
Construction and Material Journal Vol. 4 No. 2 (2022): Construction and Material Journal Vol. 4 No. 2 Juli 2022
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/cmj.v4i2.4712

Abstract

Every construction is expected to run well and will be completed in accordance with the planning. Therefore, project quality control is needed. Project quality control is extremely useful for one-time development so that the building can achieve its predetermined quality and standards. The purpose of this study is to find out the quality control system of reinforced concrete of upper structures on Columns, Beams, and Plates and whether the quality results of the reinforced concrete structure can meet the specified requirements. The data used in this study were the results of concrete compressive strength tests and steel reinforcement tests that had been carried out in the laboratory. This research was needed to minimize delays and costs so as not to miss the predetermined quality and standards. This research used the AS/NZS 4360 calculation method in which the analysis was carried out by taking into account the level of risk of the probability that occurs and the impact on costs, where the quality applied must be in accordance with the RKS that has been set on the project, the calculation was carried out using Excel in accordance with the formula to determine the level of risk in each structural work. The data were collected by distributing the questionnaire to each individual where the questionnaire contained work items to be analyzed from the division. The calculation analysis has obtained the result of the risk level for each structural work, column work worth 5.20, beam work 5.97 and floor plate work worth 6.00 which means that the work of the structure has a moderate level of risk. Keywords: Quality Control, Construction Implementation, Risk Factors, AS/NZS 4360.
KUAT TEKAN MORTAR DENGAN CANGKANG KERANG SEBAGAI SUBTITUSI AGREGAT HALUS Arifa Nur Fadiah; Agus Murdiyoto
Construction and Material Journal Vol. 4 No. 2 (2022): Construction and Material Journal Vol. 4 No. 2 Juli 2022
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/cmj.v4i2.4751

Abstract

Mortar is an especially important component used for construction. The building blocks of mortar consist of cement, fine aggregate, and water. In this study, oyster shells were used as a substitute for fine aggregate due to the increasing production of oyster shells every year, with the hope that the use of oyster shells could reduce oyster shells waste in the environment and obtain innovations for the construction world. The test objects were made in the form of a cube using a mixture ratio of 1 PC: 3 PS with variations of 0%, 5%, 10%, and 15% of shells against the weight of sand with a test time of 3 days, 14 days, and 28 days. Before making the test object, the mortar constituent materials were tested first, then the mortar design was carried out after all the constituent materials met the requirements. This study also used SPSS software to determine the effect of using shells as a substitute for fine aggregate on the compressive strength of mortar. From this study, it was found that the effect of oyster shells substitution was 17.6% at the age of 28 days compared to mortar without shells. The use of oyster shells can increase the compressive strength of mortar up to 97.6% at the age of 28 days. A variation of 15% was found at the age of 28 days as a variation with a maximum compressive strength value of 18.06 MPa. Keywords: Compressive Strength, Mortar, Oyster Shells.
ANALISIS QUANTITY TAKEOFF PADA PEKERJAAN STRUKTUR BAWAH JEMBATAN Roja Nafiyah; Nunung Martina
Construction and Material Journal Vol. 4 No. 2 (2022): Construction and Material Journal Vol. 4 No. 2 Juli 2022
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/cmj.v4i2.4755

Abstract

Technological developments in the construction sector are expanding, also supported by government regulations. BIM (Building Information Modeling) is one of the technological developments in the construction world. It is expected to help workers minimize errors that will harm the project. Projects that humans still interpret are prone to errors due to human error. This study aims to model three dimensions that function to realize the plan, examine differences in the results of BIM-based quantity takeoff using Autodesk Revit software with conventional methods in one of the bridge structures in Cinere - Jagorawi Toll Project Section 3A, and interview BIM experts with an aim to determine the factors that can affect BIM-based QTO output from the user's perspective. The two QTO outputs produce a difference of ± 0.32% in the volume of the concrete structure and ± 2.28% in the reinforcement volume, where the BIM-based QTO results are lower than the conventional method. The factors that affect the output of BIM-based QTO from the user's point of view, namely (a) the long duration of BIM user’s experience affects the accuracy and details in the modeling, which will affect the QTO output, and(b) the longer the duration of experience and practice time the higher the level of detail and accuracy. The results of the QTO are especially important in determining the overall project cost. An inaccuracy in conducting the QTO will have fatal consequences that can harm the project. Keywords: Autodesk Revit, BIM (Building Information Modeling), Conventional Method, Quantity Takeoff.
EVALUASI KAPASITAS STRUKTUR BAWAH JEMBATAN INTEGRAL Miftah Hadibrata M.; Andi Indianto
Construction and Material Journal Vol. 4 No. 2 (2022): Construction and Material Journal Vol. 4 No. 2 Juli 2022
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/cmj.v4i2.4759

Abstract

The construction of integral bridge Overpass Cilenggang 1 on the Serpong – Balaraja Section 1A Toll Road Construction Project was built on soft soil. This evaluation aims to analyze the strength of the integral bridge substructure and justify the strengthening of the substructure if it is not strong enough to withstand the load in accordance with SNI 1725:2016. The evaluation substructure of the integral bridge capacity used SAP2000 software with the load accordance to SNI 1725:2016 for bridge loading. The result of the research show that the capacity of the integral bridge Overpass Cilenggang 1 structure is strong enough to withstand the working load because the reinforcement capacity used for the substructure is stronger than the reinforcement from the result of analysis with SAP2000 software. Based on the result of the research, it can be concluded that the reinforcement used for Overpass Cilenggang 1 substructure is strong enough to withstand the load working on structure and there is no need to justify the reinforcement for the integral bridge substructure. Keywords: Evaluation, Integral Bridge, Load, Reinforcement, Substructure.
OPTIMALISASI LETAK TOWER CRANE TERHADAP WAKTU SIKLUS PADA PROYEK Y Satrio Mahardhika; Afrizal Nursin
Construction and Material Journal Vol. 4 No. 2 (2022): Construction and Material Journal Vol. 4 No. 2 Juli 2022
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/cmj.v4i2.4779

Abstract

In a construction project, there are various kinds of very complex activities. Therefore, heavy equipment, especially Tower Cranes is used to assist the work on the construction project. The layout of the Tower Crane must be considered because the optimal location of the Tower Crane will result in efficient cycle times and productivity values. Thus, the purpose of this study is to obtain the factors that must be considered in determining the location of the Tower Crane, and the location of the Tower Crane that is the most optimal and efficient in the project under review. In this study, 3 scenarios will be conducted according to the feasible area and the location of the Tower Crane closing to the building structure in under construction. Scenario 1, is the existing location in project Y. In scenario 2, the setting out of location of Tower Crane 1 is moved to coordinates (152.10; 43.30) and Tower Crane 2 is moved to coordinates (41.36; 29, 38). Scenario 3, the location of Tower Crane 2 is set to coordinates (36.60; 21.38). Analysis and comparison of the cycle time and productivity of Tower Crane were conducted on this paper. Result of the lowest total cycle time of 17277.32 minutes was obtained in scenario 3, 1048.53 minutes faster than the existing condition (scenario 1). In addition, the highest productivity value was obtained in scenario 3, with 5078.00 kg/hour for Tower Crane 1 and 5559.73 kg/hour for Tower Crane 2. From analysis performed for (3) three scenarios, Scenario 3 was also considered as the most optimal scenario based on several consideration factors in determining the location of the Tower Crane. Keywords: Cycle Time, Optimization, Productivity, Scenario, Tower Crane.
STUDI USIA PEKERJA DAN KEPEDULIAN TERHADAP BAHAYA DI LINGKUNGAN PROYEK KONSTRUKSI Jonathan Saputra; Suripto #; Farah Zul Faykal
Construction and Material Journal Vol. 4 No. 2 (2022): Construction and Material Journal Vol. 4 No. 2 Juli 2022
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/cmj.v4i2.5086

Abstract

The development of the construction industry shows increasingly stringent and complex challenges. The high number of work accidents in Indonesia is caused by several reasons, one of which is the lack of workers' awareness of the dangers contained in project work. This gives a signal that young people have the potential to lack awareness of safe behavior. This study aims to determine whether young workers are one of the causes of work accidents in the construction environment, the level of workers' awareness of hazards, and the dominant factors that affect the level of workers' awareness of hazards in the construction environment. Factors that affect the level of worker concern about hazards in the construction environment include the availability of complete PPE, strict sanctions against workers who violate SHE regulations, and the availability of a special unit that manages SHE. The method to analyze the data was one-sample t-test. From the research result, young workers still become one of the factors of work accidents, and the level of awareness of young workers towards hazards in the construction environment is still minimal or low. The dominant factor that affects the level of concern for workers to hazards in the construction environment is the availability of a special unit that manages SHE. Keywords: Work accident, Young worker, Level of awareness of worker.

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