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All Journal Prokons: Jurnal Teknik Sipil Construction and Material Journal Media Komunikasi Dunia Ilmu Sipil (MoDuluS)
Afrizal Nursin
Politeknik Negeri Jakarta
Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Materials Science & Nanotechnology Transportation

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EVALUASI NON-PHYSICAL WASTE DENGAN LEAN CONSTRUCTION PADA PROYEK GEDUNG SANGGALA Marselino Gamaliel Tamallo; Afrizal Nursin
Prokons: Jurnal Teknik Sipil Vol 14, No 2 (2020): Agustus 2020
Publisher : Jurusan Teknik Sipil, Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/prokons.v14i2.294

Abstract

Abstract The construction industry faces many challenges with problems related to construction waste as it takes up time and effort without adding value to clients. A concept in project management, namely lean construction, has the main focus of minimizing waste and providing added value to a construction project. The purpose of this study was to know the existence of non-physical waste, its causative factors, and how lean construction can be implemented to minimize non-physical waste in earthworks, foundations and basement 2 of the Sanggala Hotel and Office Building Project. The study was carried out by observation, document study, and questionnaires to identify non-physical waste. This study showed that the non-physical waste that most often occurs in related project was equipment breakdown frequently with a weight of 0.086. Meanwhile, the non-physical waste variable that has the greatest impact on causing time overrun on the project was delayed schedule with a weight of 0.080. Equipment breakdown frequently is influenced dominantly by the equipment shortage. Delayed schedule is influenced dominantly by licensing problems. In general, lean construction approaches such as Construction Meetings, Preventive And Predictive Maintenance, and Fail-Safe For Quality And Safety can be applied by contractors to minimize non-physical waste that was dominant in the project. Keywords: Lean Construction, Non-Physical Waste, Waste
PENERAPAN GREEN CONSTRUCTION PADA PROYEK PEMBANGUNAN TOD MAHATA MARGONDA Muthia Utari Masloman; Afrizal Nursin
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.v3i1.3735

Abstract

Environmental damage and global warming has become an issue in the world. Developments in the construction project has a large influence in environmental change on the surface of the earth. Construction activities start from the constructing stage to the operating stage. Green construction is one part of the sustainable development that is required to participate in environmental sustainability. With this background, the author agreed to explain the criteria, stages of difficulty and obstacles in implementing Green Construction. Data collected by questionnaire method and data analysis using SPSS Statistics 26. The results of this study obtained the value of the Green Construction criteria that applied is waste project variables with an average value of 3,748 and the lowest is site project variables with average 3,198. The most dominant factor of difficulty in applying Green Construction is the water usage variable with an average value of 3,283 and the lowest difficulty in applying is the energy variable with an average of 2,817. The most challenging obstacle factor in implementing Green Construction is the cost factor with an average value of 4.00 and the lowest obstacle is the efficient design variable with an average of 2.96. Thus, from the results of this study is expected that the contractor can help more actively in improving the implementation of Green Construction in this construction project. Keywords: Green Construction, Obstacles, Level of Difficulty, Level of Application, Construction Project.
ANALISIS PRODUKTIVITAS ALAT PANCANG HYDRAULIC STATIC PILE DRIVER UNTUK MENINGKATKAN KINERJA WAKTU PADA PROYEK APARTEMEN APPLE 3 CONDOVILLA Melati Puspitasari; Afrizal Nursin
Construction and Material Journal Vol. 3 No. 3 (2021): Construction and Material Journal Vol. 3 No. 3 November 2021
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/cmj.v3i3.4162

Abstract

The selection of work methods is very important, especially inthe deep pilling installation methode. Hydraulic Static Pile Driver (HSPD) piling equipment is selected since the method uses static pressure without negative impacts (noise and vibration) for residents around the project during piling process. However, it needs to find out effective and efficient levels, and also productivity of this method. This paper will discuss the productivity and some strategies to improve duration level of pilling equipment for Apple 3 Condovilla apartment project. From analysis, it was found that the productivity value was less than one (<1) for day 2 and 4. Several factors affect the productivity of the piling equipment, such as: late start or early quits on the schedule; equipment damage, worker skills, material production, material mobilization, location of pile material, and the final set of piling. Some strategies can be performed to improve duration, such as: workers coordination workers, periodic equipment maintenance, production, mobilization, and placement of materials. Keywords: Hydraulic Static Pile Driver, Pilling, Productivity.
ANALISIS PRODUKTIVITAS PEKERJAAN FINISHING PADA PROYEK TRANSIT ORIENTED DEVELOPMENT (TOD) PONDOK CINA KOTA DEPOK Putri Aisyah Muthmainah; Afrizal Nursin
Construction and Material Journal Vol. 4 No. 1 (2022): Construction and Material Journal Vol. 4 No. 1 Maret 2022
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/cmj.v4i1.4480

Abstract

In the construction of a building project, one of the important elements in a building project is finishing work. Finishing work is a process of finishing or final completion of a building. The success of finishing work on the building depends on the success of each stage of the workers. Meanwhile, one of the factors influencing the success of a finishing work is the productivity of its workforce. This study aims to analyze productivity and what factors affect the productivity. This research uses the Relative Importance Index (RII) method, used a likert scale or a scale of 1 to 5 based on the perception of the level of interest of each respondent. Based on the results of the analysis, the performance of the project Transit Oriented Development (TOD) Pondok Cina Depok City on wall works is considered not good because the productivity index value is less than 1. Whereas the performance for floor and ceiling work is considered good because the productivity index value is more than 1. Factors that affect the productivity of finishing work are environment, work safety, education level, work experience, wages, and age. Keywords: Building, Finishing Work, Productivity.
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.
Produktivitas Rencana Dengan Aktual Pekerjaan Rigid Pavement Dengan Slipform Concrete Paver (Studi Kasus Jalan Tol Kayuagung – Palembang - Betung Seksi 3B) Fikri Armando; Afrizal Nursin
MoDuluS: Media Komunikasi Dunia Ilmu Sipil Vol 4, No 2 (2022)
Publisher : Universitas Veteran Bangun Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32585/modulus.v4i2.2766

Abstract

Alat berat digunakan didalam proyek konstruksi untuk memudahkan manusia dalam proses pekerjaan pembangunan infrastruktur dalam pelaksanaan konstruksi dan menjadi salah satu faktor dalam proses pelaksanaan proyek konstruksi, terutama pada proyek-proyek berskala besar yang tujuannya untuk memudahkan pekerja dan mempercepat durasi menyelesaikan pekerjaan Penggunaan alat berat dalam suatu proyek konstruksi tentunya akan membutuhkan biaya pelaksanaan yang lebih besar. Tidak menggunakan alat berat juga dapat berdampak negatif, salah satu contohnya seperti keterlambatan waktu kerja. Penelitian ini dilakukan untuk menganalisis angka tingkat produktivitas alat yang digunakan untuk pekerjaan rigid pavement, mengidentifikasi faktor-faktor yang mempengaruhi tingkat produktivitas alat, dan menganalisis biaya operasi dan biaya pekerjaan Rigid Pavement. Pengambilan data primer dilakukan untuk mendapatkan volume pekerjaan aktual lapangan, durasi pekerjaan, dan hambatan yang mungkin terjadi ketika pekerjaan rigid pavement berlangsung. Sementara untuk data sekunder yang dibutuhkan berupa data teknis proyek, spesifikasi alat volume pekerjaan, dan gambar rencana (Shop Drawing). Dari hasil analisis produktivitas pekerjaan Rigid Pavement dengan alat Slipform Concrete Paver didapat sebesar 27,10 m3/jam. Faktor – faktor yang mempengaruhi produktivitas alat ataupun pekerjaan yaitu cuaca yang kurang mendukung selama pekerjaan berlangsung seperti turunnya hujan, kinerja alat berat seperti adanya kerusakan pada salah satu bagian alat berat, dan suplai beton dari Batching Plan, jika suplai beton kurang dari yang di rencanakan diawal maka produktivitas akan semakin kecil. Dari hasil analisis biaya operasi alat, didapat biaya penggunaan alat Slipform Concrete Paver sebesar Rp 435.728 per jam. Berdasarkan perhitungan perbandingan biaya pekerjaan Rigid Pavement rencana dan aktual, didapat adanya kerugian karena hasil aktual lebih besar daripada yang direncanakan yaitu titik 1 dengan rasio -2,64%, titik 2 dengan rasio -0,86% dan hanya titik 3 yang tidak melebihi rencana dan memiliki rasio 0,29%. 
Co-Authors Fikri Armando Marselino Gamaliel Tamallo Melati Puspitasari Muthia Utari Masloman Putri Aisyah Muthmainah Satrio Mahardhika