relation: https://eprints.untirta.ac.id/52703/
title: PEMANFAATAN LIMBAH LOW DENSITY POLYETHYLENE DAN PASIR SILIKA SEBAGAI MATERIAL PENYUSUN ROSTER BERBASIS PARTICULATE-FILLED POLYMER COMPOSITE
creator: ANSARA, ADHILA PRAMARTHA DWI
subject: TN Mining engineering. Metallurgy
description: Polyethylene, particularly LDPE, is a type of plastic that is commonly used in daily life, resulting in its waste being frequently encountered in the environment. One approach to address this issue is to utilize this waste as a matrix in air-ventilated blocks (rosters) based on particulate-filled polymer. However, using LDPE as a substitute for cement can reduce the silica (SiO2) content, which may compromise the quality of the roster. Therefore, silica sand is used to replace regular sand as a filler to enhance the strength of the roster, given that silica sand has a high silica content. The research involved creating four variations of the composition of LDPE:silica sand:crushed stone (% by weight), specifically 70:10:20, 60:20:20, 50:30:20, and 40:40:20. Cube-shaped samples measuring 15×15×15 cm were produced using a conventional method, which included melting LDPE on a stove at a temperature of 110-125 °C, mixing in silica sand and crushed stone, and manually stirring until homogeneous. The casting and drying stages were conducted according to SNI 03-1974-1990 standards. The tests performed included compressive strength, water absorption, and density. The results of the tests indicated that all four roster samples met the criteria of SNI 03-0349-1989, suggesting they are suitable for application. Based on optimization using data normalization in Microsoft Excel, the best sample that met the required criteria, such as the highest compressive strength, lowest water absorption, and lowest density, was Sample 1, which exhibited a compressive strength of 139.86 kg/cm², a water absorption of 0.716%, and a density of 1150 kg/m³.
date: 2025
type: Thesis
type: NonPeerReviewed
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identifier: https://eprints.untirta.ac.id/52703/5/Adhila%20Pramartha%20Dwi%20Ansara_3334210024_FULLTEXT.pdf
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identifier: https://eprints.untirta.ac.id/52703/2/Adhila%20Pramartha%20Dwi%20Ansara_3334210024_01.pdf
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identifier: https://eprints.untirta.ac.id/52703/1/Adhila%20Pramartha%20Dwi%20Ansara_3334210024_02.pdf
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identifier: https://eprints.untirta.ac.id/52703/3/Adhila%20Pramartha%20Dwi%20Ansara_3334210024_03.pdf
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identifier: https://eprints.untirta.ac.id/52703/4/Adhila%20Pramartha%20Dwi%20Ansara_3334210024_04.pdf
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identifier: https://eprints.untirta.ac.id/52703/6/Adhila%20Pramartha%20Dwi%20Ansara_3334210024_05.pdf
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identifier: https://eprints.untirta.ac.id/52703/7/Adhila%20Pramartha%20Dwi%20Ansara_3334210024_Ref.pdf
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identifier: https://eprints.untirta.ac.id/52703/8/Adhila%20Pramartha%20Dwi%20Ansara_3334210024_CP.pdf
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identifier: https://eprints.untirta.ac.id/52703/9/Adhila%20Pramartha%20Dwi%20Ansara_3334210024_Lamp.pdf
identifier:   ANSARA, ADHILA PRAMARTHA DWI  (2025) PEMANFAATAN LIMBAH LOW DENSITY POLYETHYLENE DAN PASIR SILIKA SEBAGAI MATERIAL PENYUSUN ROSTER BERBASIS PARTICULATE-FILLED POLYMER COMPOSITE.  S1 thesis, Fakultas Teknik Universitas Sultan Ageng Tirtayasa.