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Evaluasi Dampak Perawatan Filter Udara terhadap Performa Mesin Mobil: Tinjauan Empiris di Bengkel Honda Camp Fast Jati Asih Rahmat Nur Amin Hidayatullah; Marysca Shintya Dewi; Sandy Suryady
JURAL RISET RUMPUN ILMU TEKNIK Vol. 4 No. 1 (2025): April : Jurnal Riset Rumpun Ilmu Teknik
Publisher : Pusat riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jurritek.v4i1.5941

Abstract

Air filter maintenanceThis study aims to determine the effect of air filter maintenance on engine lifespan and performance in cars at Honda Camp Fast Jati Asih. The air filter is an important component in the combustion system, as it can influence engine power, fuel efficiency, and engine durability. The research uses a quantitative approach through experiments and case studies, involving cars that regularly undergo air filter maintenance. Data collected includes engine performance before and after maintenance, as well as engine lifespan records during the maintenance period. The results show that regular air filter maintenance can improve engine performance, save fuel, and extend engine life. These findings highlight the importance of air filter maintenance in keeping car engines in good condition.
Formwork Implementation Methods for Reinforced Concrete Column Structures Using PERI System Reynold Andika Pratama; Marysca Shintya Dewi; Wildan Abdul Jabar; Aryo Bismoko
International Journal Multidisciplinary Science Vol. 4 No. 2 (2025): June: International Journal Multidiciplinary Science
Publisher : Asosiasi Dosen Muda Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56127/ijml.v4i2.2226

Abstract

This study investigates the implementation methods of the PERI formwork system for reinforced concrete column structures in the KAI CO-Living Gondangdia project, an 8-story residential building in Central Jakarta. Employing a qualitative case study approach, the research documents the assembly, installation, concrete placement, and removal processes of the PERI system during a three-month internship. Key aspects analyzed include material preparation, panel assembly, alignment techniques, quality control measures, and safety protocols. The PERI system, characterized by modular steel-framed panels and phenolic-coated plywood, facilitated rapid assembly (45-60 minutes per column), high dimensional accuracy (±3mm tolerance), and excellent concrete surface quality for 85% of columns. The system’s reusability (24 cycles) and reduced labor requirements (25% less than traditional methods) enhanced project efficiency. Standardized procedures, skilled labor, and rigorous quality control were critical to success, though specialized training was necessary. The findings highlight the PERI system’s advantages in speed, quality, and cost-effectiveness for repetitive structural elements, offering practical insights for optimizing formwork in modern construction. Recommendations include investing in crew training, detailed planning, and comprehensive quality protocols to maximize system benefits.