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All Journal Edukasi: Jurnal Pendidikan As-Salam: Jurnal Studi Hukum Islam & Pendidikan Rancang Bangun Dinamisia: Jurnal Pengabdian Kepada Masyarakat utile: Jurnal Kependidikan Report of Biological Education Sustainable Civil Building Management and Engineering Journal Bersama: Jurnal Pengabdian Kepada Masyarakat
Setiono
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Humanities Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Education Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mathematics Social Sciences Transportation Other

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Journal : Sustainable Civil Building Management and Engineering Journal

 1 
Greenhouse Gas Emission Analysis Using the Life Cycle Assessment Method for the CO2 Compressor Machine Foundation at PT Kaltim Methanol Industri Hardianto, Rifki; Setiono; Handayani, Fajar
Sustainable Civil Building Management and Engineering Journal Vol. 2 No. 1 (2025): January
Publisher : Indonesian Journal Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47134/scbmej.v2i1.3580

Abstract

Climate change and global warming have become major global concerns due to their significant impacts on the environment and human life. One of the primary contributors to climate change is Greenhouse Gas (GHG) emissions, which are generated by various industrial activities, including the construction sector. PT Kaltim Methanol Industri, one of Indonesia's largest methanol producers, plans to add a new unit for CO₂ injection to enhance its production capacity. In this new unit, the reciprocating compressor machine foundation is a crucial structural component that must not only meet technical requirements but also consider environmental impacts, particularly GHG emissions produced during the construction process. This study employs the Life Cycle Assessment (LCA) method to identify the life cycle stages that contribute the most to GHG emissions and to compare the GHG emissions of various foundation types, namely standard block foundation, spring-supported foundation types 1, 2, and 3. The dimensions of each foundation type are 10.2 m in length and 6.2 m in width, with varying heights: standard block foundation (1.5 m), spring-supported type 1 (1.25 m), spring-supported type 2 (1.0 m), and spring-supported type 3 (0.75 m). The height above ground for each foundation type is 0.35 m. The study results indicate that the raw material stage contributes the most emissions, with the highest emissions recorded in the standard block foundation at 65,969.8476 kgCO₂e. Meanwhile, the foundation with the lowest emissions is the spring-supported type 3, producing 36,550.0597 kgCO₂e.
A Comparative Analysis of the CPM and PERT Methods in Project Time Management for a High-Rise Building Construction Project in Yogyakarta Santoso, Fazabella Wijaya; Handayani, Fajar Sri; Setiono
Sustainable Civil Building Management and Engineering Journal Vol. 2 No. 2 (2025): April
Publisher : Indonesian Journal Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47134/scbmej.v2i2.3927

Abstract

This study examines the comparison of PERT (Program Evaluation and Review Technique) and CPM (Critical Path Method) in time management for construction projects through a case study of a 21-story high-rise building project in Yogyakarta. The research is motivated by the need for effective time management in construction projects to avoid delays that may escalate costs and disrupt project execution. The objectives are to determine the estimated duration for completing the building’s structural work, compare the differences between the initial schedule and the results of PERT and CPM analyses. The study employs a case study approach, with primary data collected through direct interviews with project stakeholders regarding activity durations and predecessors, as well as secondary data from project documentation, including schedules and structural drawings. Data analysis involves applying PERT calculations using three-time estimates (optimistic, most likely, and pessimistic) and identifying critical paths through CPM. Data processing and network diagram visualization are conducted using a project management software to comprehensively map critical and non-critical project activities.  Results indicate that the CPM method predicts a project duration of 419 days, 237 days shorter than the initial schedule, while the PERT method estimates 580 days, 76 days shorter than the original timeline, with an 82.98% probability of timely completion.  
Co-Authors Aa Juhanda Afrianto, Evo Agus Setiya Budi Arfatul Makiyah Asnawati Is bopalyon Pedi Utama Budi Prastia delvia nora Effi Yudiawati Gina Nuranti Gusni Yelni Handayani, Fajar Handayani, Fajar Sri Hardianto, Rifki Hasnelly Iqbal Noor karmila, yeni Kaspani, Utik Lili Suryani Muhammad Hayyu 'Alam Pitriani Pratama, Zidan Rachmat Santoso, Fazabella Wijaya Sistiana Windyariani Subagiono Suhendar SUPRIYONO Suryani, Fikriman Suryani, Isyaturriyadhah