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All Journal Aceh International Journal of Science and Technology Journal of The Civil Engineering Student
Fachrurrazi Fachrurrazi
Universitas Syiah Kuala
Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Engineering Transportation

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The Significance Risk for Factors of Labour, Material, and Equipment on Construction Project Quality Saiful Husin; Mubarak Mubarak; Fachrurrazi Fachrurrazi
Aceh International Journal of Science and Technology Vol 8, No 2 (2019): August 2019
Publisher : Graduate Program of Syiah Kuala University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (429.322 KB) | DOI: 10.13170/aijst.8.2.13281

Abstract

The construction involves a series of activities that possibly face problems or risks. The risk probability is an uncertain condition that results in a negative impact on the project objectives. Threats can come from the resources factor in a construction project, such as labour, materials, and equipment. The handling of risks in construction work needs to be further reviewed. It is to find risk factors and risk variables contributing to high risk to achieve the quality objectives of construction implementation. The purpose of this study was to analyze the most significant risk towards the quality of construction associated with the condition of the Province of Aceh during 2000-2015. The situation is classified in three periods, namely political conflict (2000-2004 as Period I), rehabilitation and reconstruction (2005-2009 as Period II), and post-rehabilitation and reconstruction (2010-2015 as Period III). Dataset is collected using questionnaires to 15 large qualified contractor companies to capture construction quality information. The risk significance identified based on Risk Importance Index (RII) for frequency and severity of factors and variables. There are 7 variables for labour resources, 10 variables for material resources, and 17 variables for equipment resources. The quality of construction mostly affected by the labour resources factors in Period I and Period III. The risk comes from the variable discipline of workers who are not good (A3). For Period II, the lack of labour capacity (A2) variable become as the most significant risk.
Model Time-Cost Trade-Off pada Pekerjaan Tangga Beton Di Banda Aceh T. Muhammad Fachrul Rozie; Fachrurrazi Fachrurrazi; Cut Zukhrina Oktaviani
Journal of The Civil Engineering Student Vol 3, No 1 (2021): Volume 3, Nomor 1, April 2021
Publisher : Jurusan Teknik Sipil, Fakultas Teknik, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/journalces.v3i1.12496

Abstract

The construction project is very dependent on the project management process, both costs and time. In the implementation process, the service provider must complete one job before doing the next work. Addressing this problem requires a method that is accelerated. The purpose of this study is to do time-cost trade-off modeling. The model wa devoloped from respondent’s perceptions through filling out questionnaires and RAB data. Respondents in study ware directors, estimators and project manager at construction companies domiciled in Banda Aceh. The results showed that ladder work can be broken down into formwork, cleaning and casting. Based oo sub-activities, ladder work can be accelerated from the normal duration of the projectwith the maximum additional cost arisisng from the acceleration of the duration of the ladder work is Rp. 14.109.984,07 (22,13% of normal costs), the maximum additional cost incurred due to the acceleration of the duration of the casting work is Rp. 12.144.740,00 ((18,78% of normal costs) and the maximum additional cost incurred due to the acceleration of the duration of the formwork work is Rp. 12.331.359,00 (19,64% of normal costs). Additional costs per day vary for work items on the stairs because the time-cost trade-off model is non-linear.
Co-Authors Alisha Wifa Almira Cut Zukhrina Oktaviani Mubarak Mubarak Nurul Malahayati Saiful Husin T. Muhammad Fachrul Rozie