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All Journal International Journal Of Science, Technology & Management (IJSTM) Makara Journal of Technology
Ferdinand, Joshua
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Aerospace Engineering Agriculture, Biological Sciences & Forestry Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Transportation

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Development Of Risk-Based Audit Method Standard For Stadium Project Using Design And Build Contract To Minimize Dispute Based On Inspectorate Perpective Ferdinand, Joshua; Putro, Anggoro; Latief, Yusuf
International Journal of Science, Technology & Management Vol. 4 No. 1 (2023): January 2023
Publisher : Publisher Cv. Inara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46729/ijstm.v4i1.721

Abstract

Construction projects have been developing from the management side year by year. One of the problems that government has been facing government construction projects over the years is the duration of the procurement process that takes too long which is hard to be implemented if the project is urgent in terms of time. This creates the urgency to seek the solutions to the problem of how to shorten the time of the procurement process. The design and build integrated contract method that unites the planning and implementation process simultaneously is able to answer these problems and shorten the procurement time of government construction projects. However, there are many disputes faced by construction projects that use integrated design contracts postproject, one of which comes from the Government Internal Supervisory Apparatus (APIP) or commonly called the Inspectorate. This is because there are several different standard between the inspectorate and the owner or contractor that has been used in the process of government construction projects Audit. This study aims to identify the standards of the audit process of the Inspectorate, analyze the risks that cause disputes, and to develop standards for risk-based audit methods for design and build-based construction projects in order to minimize disputes that occured from the inspectorate side of perspective.
Experimental and Numerical Studies on the Compressive Strength Test of Recycled Aggregate Concrete using Digital Image Correlation Sentosa, Bastian Okto Bangkit; Ferdinand, Joshua; Handika, Nuraziz
Makara Journal of Technology Vol. 28, No. 1
Publisher : UI Scholars Hub

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Abstract

The utilization of recycled aggregate (RA) as substitute of natural aggregate in concrete contributes to the research of sustainable building construction materials. Many applications of RA have been studied worldwide. However, the application of RA with a specific range of strength and specific damage behavior requires further study. This research aims to examine the mechanical characteristics of RA concrete, particularly its load–displacement response and crack pattern, through the experimental and numerical studies of compressive strength test. Laboratory concrete waste from cylindrical sample with 30–35 MPa strength was chosen as RA. The digital image correlation (DIC) method was applied throughout the compressive tests. In the post-processing step of the DIC method, vertical and horizontal displacement and the strains of the observed concrete surface were predicted to detect the crack patterns at the initial and maximum load stages. Numerical modeling was then performed on the same shape by applying the concrete damage model by Mazars. Numerical modeling gives close results to the experimental ones from the initial stage to the maximum load stage. These results can be useful for further studies to improve the accuracy of numerical models for alternative building material, specifically for large structures.
Co-Authors Handika, Nuraziz Putro, Anggoro Sentosa, Bastian Okto Bangkit Yusuf Latief