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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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STABILITAS DAYA DUKUNG LATERAL STRUKTUR KEPALA JEMBATAN DI TANAH LUNAK Dhiya Safira; Putera Agung Maha Agung
Construction and Material Journal Vol. 3 No. 2 (2021): Construction and Material Journal Vol. 3 No. 2 Juli 2021
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/cmj.v3i2.3514

Abstract

Pile is a deep foundation types of system always used to support a bridge abutment in a highway line. Pile foundation as one part of the sub-structure system can retain and transfer all loads from the upper structure. According to government standard regulation, a configuration of pile foundation must be selected and serve all external lateral loads in safety limits according to government standard regulation, including static and dynamic loads. This study evaluates the lateral stability of bridge abutment at the Indrapura Kisaran Toll Road section 2 at STA. 153 + 509, which designed using prestressed round pile foundations. Broms solution is a selected method to evaluate the lateral stability of a single and or group of pile foundations embedded in sand or sandy layers. From some design calculations, a configuration of 40 piles with a diameter of 50 cm shows adequately strong to resist all the lateral forces at the field. Keywords: Foundation, Piles, Sand.  
ANALISIS KELAYAKAN INVESTASI RELOKASI TOL PORONGGEMPOL AKIBAT TAMBAHAN LINGKUP PEKERJAAN Agum Setya Sugama; Iwan Supriyadi
Construction and Material Journal Vol. 2 No. 3 (2020): Construction and Material Journal Vol. 2 No. 3 November 2020
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/cmj.v2i3.3530

Abstract

Surabaya–Gempol Toll Road is a toll that has operated since 1986, but in 2006 the Porong-Gempol route collapsed due to lapindo mud flow. Therefore, the toll road needs a relocation. On the construction of its relocation, additional scope of work was added and affected the feasibility of the investment which must be put into consideration for analyzing purposes in order to regain the initial feasibility value of 14.84% IRR. The forecast of cost and income analyzed with financial approach. The method used are Net Present Value (NPV) and Internal Rate of Return (IRR) with a discount rate of 11.8%. The result of investment feasibility after additional scope of work shows that the NPV during concession period (39 years) is negative Rp459.150.000.000,00 and IRR at NPV = 0 is 9,55%. To return the feasibility value, concession period is must be increase to 50 years with adjustment of the toll fee to Rp1.625 in 2021 and Rp1.980 in 2023. It shows that NPV is Rp1.037.727.000.000,00 and IRR at NPV = 0 return to 14,84%. Keywords: Additional Scope of Work, Compensation, Feasibility, Relocation.
PENERAPAN SISTEM MANAJEMEN MUTU ISO 9001 PADA KONTRAKTOR PT. X Arief Darmawan; Sidiq Wacono; Jonathan Saputra
Construction and Material Journal Vol. 2 No. 3 (2020): Construction and Material Journal Vol. 2 No. 3 November 2020
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/cmj.v2i3.3541

Abstract

Infrastructures development in Indonesia is experiencing a high increase. However, many construction failures were due to construction that was not following the predetermined quality. Data obtained from the Investigation of the PNK Technical Team in 2013 contained 5 cases of construction project failure handled by the authorities with a total loss of more than 5 billion to the state. The reality shows that many construction service businesses have names but do not have the supporting facilities. Therefore, data collection aims to analyze the application of the ISO 9001: 2015 application quality management system and its application constraints. Processing data use descriptive statistical analysis and using SPSS version 25 software. The data testing techniques used include validity, reliability, and descriptive hypothesis. The data was collected using a questionnaire method for construction employees in the Design Project for the Tanjung Barat Station Flats. This analysis indicates that the application of the ISO 9001: 2015 quality management system by taking into account all the points from clause 4 to clause 10 is 85.19% and is in the excellent category (80-100%). Factors that become obstacles in implementing ISO 9001: 2015 are due to the lack of socialization regarding the application of ISO 9001, documented information, and communication between project teams. Keywords : ISO 9001, ISO 9001:2015, Quality Management System.
PERHITUNGAN DEBIT BANJIR SUNGAI CIPINANG DAN SUNGAI SUNTER PADA BERBAGAI PERIODE ULANG Ema Khoirunisa Ovilia; Eri Primadianti; Denny Yatmadi
Construction and Material Journal Vol. 2 No. 3 (2020): Construction and Material Journal Vol. 2 No. 3 November 2020
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/cmj.v2i3.3556

Abstract

In the area around the Cipinang and Sunter Rivers, floods often occured due to runoff from overflowing rivers. The data and information used in this study are secondary data from related agencies, namely the Balai Besar Wilayah Sungai Ciliwung-Cisadane and BMKG. Hydrological and hydraulic analysis from existing data yield calculation results the maximum flood discharge for the Sunter River for a 2-year return period is 114.035 m³ / s and for a 100-year return period of 407.589 m3 / s and for the Cipinang River, the discharge for the 2-year return period is 113.214 m3 / s while for the 100 yearly repetition of 405,083 m3 / sec. Keywords : Cipinang River, Sunter River, Flood Flow.
PENGENDALIAN MUTU STRUKTUR PADA PROYEK RUMAH SUSUN STASIUN PONDOK CINA Betty Rosyana Manurung; Sidiq Wacono
Construction and Material Journal Vol. 2 No. 3 (2020): Construction and Material Journal Vol. 2 No. 3 November 2020
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/cmj.v2i3.3572

Abstract

Each project can run well and achieve results as planned is expected undoubtedly. Therefore, it requires project quality control. The quality control system in construction projects is essential must be carried out to produce one-time work of a quality that meets the specified standards. This study aims to determine the quality control system for superstructure work and to determine whether the quality of reinforced concrete is according to the requirements. The data used is secondary data, namely, data directly obtained from the project. The data used are tthe concrete compressed test result and reinforcing steel tests held in the laboratory and reinforced concrete data. The analysis results showed that the compress strength of concrete for FC 30 and FC 40 with a test age of 28 days was by the specified requirements, the reinforcement tests S10, S13, S16, S19, S22, S25 meet requirements. For the final result, reinforced concrete found a few defects, but the contractor immediately took corrective action. The analysis shows the implementation of an appropriate quality control process in this project. Keywords : Quality, Control, Concrete, Reinforcement, Construction.
PENCAHAYAAN KOMBINASI PADA LABORATORIUM TEKNIK ELEKTRO POLITEKNIK NEGERI JAKARTA Muhamad Ega Alfiana; Muhammad Aji Alfares; Dyah Nurwidyaningrum; Linda Sari Wulandari
Construction and Material Journal Vol. 2 No. 3 (2020): Construction and Material Journal Vol. 2 No. 3 November 2020
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/cmj.v2i3.3580

Abstract

Lighting in the Electrical Engineering Laboratory of the Jakarta State Polytechnic (PNJ) is one-factor supporting student practice activities from 07.30 - 16.00 WIB. The observation indicated that the PNJ Electrical Engineering laboratory's lighting undistributed evenly, even though more comprehensive lighting is needed to run well. The purpose of this study is to analyze the suitability of lighting in the Electrical Engineering laboratory with the minimum standard of SNI 03-6575-2001 concerning Procedures for Designing Artificial Lighting Systems in Buildings. The method used in this research is to compare the measurement results against the SNI 03-6575-2001 standard. Researchers took measurements in the Safety and Electrical Machinery laboratory room, Analog laboratory 1 and Digital laboratory 2, Department of Electrical Engineering, State Polytechnic of Jakarta. Analysis of the percentage suitability of combination light in the Safety and Electrical Machinery laboratory in general, namely 70.67%. Based on the measurement results, the suitability of lighting in the Department of Electrical Engineering laboratory, State Polytechnic of Jakarta, is already following SNI's minimum lighting level. Keywords: Electrical Engineering Laboratory, Artificial Lighting, Lighting in The Laboratory.
ANALISIS PERBANDINGAN KUALITAS DAN BIAYA PENGGUNAAN MECHANICAL COUPLER PADA KONSTRUKSI PIER PROYEK MRT JAKARTA CP 103 Pungky Dharma Saputra
Construction and Material Journal Vol. 2 No. 3 (2020): Construction and Material Journal Vol. 2 No. 3 November 2020
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/cmj.v2i3.3581

Abstract

The Government of Indonesia is accelerating the development of railway infrastructures. MRT is a milestone in the development of railway infrastructures in Indonesia since 2013. The elevated construction uses a single pier structure with a main reinforcement bar diameter of 40 mm. However, the conventional overlapping connection is unsuitable; hence it used a mechanical coupler connection. This research focused on the quality and cost comparison of using a mechanical coupler as a reinforcing connection in the MRT CP 103 Project's pier construction. The variables which would be studied were conventional connection and mechanical coupler connection. There were two stages in this research: quality testing in an independent laboratory and a cost comparison analysis. The data used were primary data from quality testing results, and secondary data were the project volume and unit price. The project sample in this research was MRT CP 103 Project with Pier AP 29 as the case study. The analytical approach used was descriptive analysis by making a comparison of the two variables. According to the quality test results, the tensile strength of the reinforcement was 665.56 N/mm2 and the mechanical coupler tensile strength was 626.33 N/mm2 . According to the calculation results of the case study on Pier AP29, it was found that the price difference was IDR2,246,622 or 6.17% cheaper than conventional connection. Further analysis showed that the mechanical coupler connection with 40 mm diameter was very effective because it was cheap. This research can be used as a reference in the alternative selection of reinforcement connection. Keywords : Quality, Cost, Mechanical Coupler, Pier, MRT CP 103 Project.
PERUBAHAN POTENSI MENGEMBANG TANAH EKSPANSIF YANG DISTABILISASI SECARA FISIS DAN MEKANIS Paksitya Purnama Putra; Mokhammad Farid Ma'ruf; Muhammad Ari Ridwansyah; Rendra Kurniawan; Celia Nindy Carisa
Construction and Material Journal Vol. 3 No. 1 (2021): Construction and Material Journal Vol. 3 No. 1 Maret 2021
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/cmj.v3i1.3686

Abstract

Expansive soil has a high swelling and shrinkage ability which can damage the buildings above it. Glagahagung Village, Purwoharjo District, Banyuwangi Regency is one of the areas suspected of having this type of soil. Residents often experience problems in their residential buildings every year, such as cracks in floors, walls, columns, and beams. Several methods can be used to improve expansive soil, including physical and mechanical stabilization. In this study, lime and cement were used as physical stabilizers. On the other hand, sand is used as a mechanical stabilizer. Physical and mechanical parameters will be observed in the stabilization process. Based on the three stabilizers, a 5% cement mixture can be the best alternative. Cement stabilizers can increase the maximum dry volume weight, reduce the rate of soil swelling, and change natural soils' classification from high plasticity clay to silty sand. Keywords: Expansive Soil, Mechanical Stabilization, Physical Stabilization, Swelling Potential.
ANALISA KOMPARATIF ANTARA ACUAN PERANCAH SEMI SISTEM DENGAN ACUAN PERANCAH ALUMINIUM. STUDI KASUS : PROYEK RANCANG BANGUN RUMAH SUSUN, PONDOK CINA, DEPOK Illona Fatikah Andriyono; Agung Budi Broto
Construction and Material Journal Vol. 3 No. 1 (2021): Construction and Material Journal Vol. 3 No. 1 Maret 2021
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/cmj.v3i1.3729

Abstract

In selecting the formwork work method, the things that need to be considered include cost, quality, and time. Comparison of several methods of formwork work is carried out to obtain the correct method. Comparisons were made to the Semi System formwork method and the Aluminum formwork method. To compare the two methods requires volume calculation, the multiplier coefficient referred to by the PUPR Regulation No. 28 / PRT / M / 2016, non-conformence data, and work duration. This data is processed into the need for the cost of formwork for the two methods based on the PUPR Ministerial Regulation Number 28 / PRT / 2016, the percentage of concrete defects due to formwork, and the scheduling duration presented in the bar chart. The two methods are compared based on the need for the cost of the work, the number of percent of quality, and the work duration. The comparison shows that the aluminum formwork method is superior in terms of cost (RAB). It is produced more efficiently by 3.4%. In terms of quality, this method results in less damage (concrete defects) to minimize repair costs later, and when the work reaches 43% more effective. Keywords: Comparison, Formwork, Semi System Formwork, Aluminium Formwork.
PEMANFAATAN STYROFOAM SEBAGAI PENGGANTI SEBAGIAN AGREGAT HALUS PADA BETON DENGAN FAS 0.4 Danindra Pramudya Wardana; Gilang Fadhlurrahman Evriantama; Muhtarom Riyadi
Construction and Material Journal Vol. 3 No. 1 (2021): Construction and Material Journal Vol. 3 No. 1 Maret 2021
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/cmj.v3i1.3731

Abstract

Concrete is a material commonly used for structural work. However, concrete has one disadvantage, namely that its specific gravity is high enough so that the dead load on a structure becomes large. One way to deal with high concrete density is to use Styrofoam waste as a substitute for some of the fine aggregate. This research was conducted to examine the physical and mechanical properties as well as the optimum value of compressive strength, split tensile strength and modulus of elasticity of concrete with a 0.4 fas using Styrofoam as a partial substitute for fine aggregate. The research method used is an experimental method by making the test object in the form of a concrete cylinder with a diameter of 15 cm and a height of 30 cm. The composition of the concrete mixture used is a volume ratio of 1 Pc: 2 Ps: 2 Kr with a fas 0.4. The styrofoam variations used are 10%, 20%, and 30% of the ratio to the volume of fine aggregate in normal concrete mixtures. Testing of the mechanical properties of concrete was carried out at the age of 7, 14, 21, and 28 days for the concrete compressive strength test, and 28 days for the split tensile strength of the concrete, and the modulus of elasticity. The results showed that the compressive strength of the concrete increased with the age of the concrete and the addition of the styrofoam variations with the exception of the 10% variation. For the split tensile strength test, there was an increase in line with the increase in the styrofoam variation, while the modulus of elasticity decreased at 10% variation against 0% variation and increased at 20% and 30% variation with 0% variation. Keywords: Concrete, Styrofoam, Variation.

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