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All Journal Bulletin of Chemical Reaction Engineering & Catalysis Prosiding Semnastek IJFAC (Indonesian Journal of Fundamental and Applied Chemistry) Jurnal Distilasi WIDYA LAKSANA Jurnal Inovator Barometer Jurnal Abdimas Mandiri Best Journal (Biology Education, Sains and Technology) Jurnal Abdi Insani AJARCDE (Asian Journal of Applied Research for Community Development and Empowerment) Aptekmas : Jurnal Pengabdian Kepada Masyarakat PROSIDING SEMINAR NASIONAL PENELITIAN DAN PENGABDIAN KEPADA MASYARAKAT (SNPPM) UNIVERSITAS MUHAMMADIYAH METRO Bulletin of Chemical Reaction Engineering & Catalysis International Journal of Information Engineering and Science
Eka Sri Yusmartini
Program Studi Magister Teknik Kimia, Program Pascasarjana, Universitas Muhammadiyah Palembang, Palembang,
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Journal : International Journal of Information Engineering and Science

 1 
Addition of Plastic Mixture (LDPE) for the Development of Alternative Mixtures in Concrete Blocks Abdullah, Abdullah; Erna Yuliwati; Eka Sri Yusmartini
International Journal of Information Engineering and Science Vol. 2 No. 3 (2025): August : International Journal of Information Engineering and Science
Publisher : Asosiasi Riset Teknik Elektro dan Infomatika Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62951/ijies.v2i3.301

Abstract

This study investigates the potential of Low-Density Polyethylene (LDPE) plastic waste as a partial substitute for sand in concrete block mixtures, focusing on its effects on compressive strength and water absorption. LDPE is a non-biodegradable plastic waste that poses significant environmental challenges. Its incorporation into construction materials offers a promising solution to reduce pollution while enhancing the performance of building components. The research employed LDPE substitution levels of 10%, 15%, 20%, 25%, and 30% by weight of sand, compared against conventional concrete blocks without LDPE. Experimental results revealed that the highest compressive strength was achieved with a 15% LDPE mixture, reaching 80.762 kg/cm² at 28 days of curing—an increase of approximately 40.8% compared to normal blocks, which recorded 57.359 kg/cm². LDPE additions up to 20% maintained favorable strength characteristics, while higher proportions (25% and 30%) led to a decline in mechanical performance. In terms of water absorption, the inclusion of LDPE demonstrated a decreasing trend, attributed to the hydrophobic nature of plastic, which enhances moisture resistance in the concrete blocks. These findings suggest that a 15% LDPE substitution represents an optimal formulation for producing eco-friendly concrete blocks with improved strength and reduced water absorption. The study highlights the dual benefits of waste management and material innovation, aligning with sustainable development goals. By repurposing plastic waste into construction applications, this approach not only mitigates environmental impact but also contributes to the advancement of green building technologies. Further research is recommended to explore long-term durability, thermal properties, and scalability of LDPE-based concrete products in real-world construction settings.
Co-Authors Abdullah Abdullah Ardianto, Feby Ario Oktora Aseptianova Aseptianova Aseptianova Aseptianova Aseptianova Atikah Atikah Atikah Eko Ariyanto Elfidiah, Elfidiah Elvidiah Elvidiah Erna Yuliwati Erna Yuliwati fatimah Fatimah Hery Gunawan Innike Abdillah Fahmi Junanda Marza Kharismadewi, Dian Mardwita, Mardwita Mardwita, Mardwita Meylinda Rahayu Mitayani Purwoko, Mitayani Muhammad Faizal Muhammad Mansyur, Muhammad Mujiharti, Mujiharti - Nidya Wisudawati Nindia Selviana Nindia Selviana Parwanti, Sri Rahadianto Wahyu Triaji Rahadianto, Wahyu Triaji Ridhowan, Thoufiq Rifdah, Rifdah Rifdah, Rifdah Rinjani, Retno - Rivaldo, M. Chobind Robiah, Robiah Septiaranisi, Eci Dwi Sri Martini Suli Cahaya Kaswari Sulton Nawawi Ummi Kalsum Zuber Angkasa