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All Journal Jurnal Manajemen Teknologi dan Teknik Sipil (JURMATEKS)
Topik Wahyu Widianto
Program Studi Teknik Sipil, Fakultas Teknik Sipil Dan Perencanaan, Universitas Balikpapan, Balikpapan, Indonesia
Civil Engineering, Building, Construction & Architecture Electrical & Electronics Engineering Engineering Transportation

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Kuat Lentur Beton Menggunakan Agregat Batu Petangis dan Pasir Semboja dengan Penambahan Botol Plastik Topik Wahyu Widianto; Andi Marini Indriani; Gunaedy Utomo
Jurnal Manajemen Teknologi & Teknik Sipil Vol. 6 No. 2 (2023): DECEMBER
Publisher : Kadiri University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30737/jurmateks.v6i2.4989

Abstract

Utilizing local materials is a strategic step in optimizing concrete production in East Kalimantan. There's an example supply of petangis stone and semboja sand aggregates. Apart from that, using various wastes, including plastic waste, in concrete production is also a current issue. This study aims to investigate the potential substitution of fine aggregates with PET and combine them with local materials, to understand their impact on the bending strength of concrete.  The study tested concrete bending strength using 15x15x60 cm blocks with PET plastic substitutions at 0.30%, 0.45%, and 0.60% of sand weight, comparing them with PET-free concrete. The research results show that adding 0.30 and 0.45% PET plastic bottles causes a decrease in the flexural strength of concrete. This is related to the influence of changes in the composition of the concrete mix, including factors such as uneven aggregate distribution and less-than-optimal material binding. Flexural strength increases at a percentage of 0.60% by 3.7% or 3.3 MPa and shows better results than normal concrete. So the PET percentage can be used as a recommendation in making concrete using local materials such as petangis stone aggregate and semboja sand.
Co-Authors Andi Marini Indriani, Andi Marini Gunaedy Utomo