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Indirect Tensile Fatigue Test (ITFT) Analysis of Asbuton Mixture with Used Oil Additives and HDPE Husni, M Ari; Karyawan, I Dewa Made Alit; Sideman, IAO Suwati
Jurnal Penelitian Pendidikan IPA Vol 11 No 7 (2025): July
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i7.11912

Abstract

This study aims to assess the impact of the use of used oil and High Density Polyethylene (HDPE) plastic as additives in asphalt mixtures modified with Asbuton on fatigue resistance in AC-BC mixtures. This mixture is designed with an optimal asphalt content of 6.0% and combined with variations in the proportion of modified Asbuton asphalt and oil asphalt. Testing was carried out using the Indirect Tensile Fatigue Test (ITFT) method at a pressure of 500 kPa and at a temperature of 20 degrees Celsius to evaluate fatigue performance due to repeated loads. The results showed that increasing the proportion of modified asphalt containing Asbuton, used oil, and HDPE resulted in a significant increasing trend in the fatigue life of the tested specimens. These findings indicate that asphalt modification with a combination of these waste materials can increase the flexibility and resistance of the mixture to repeated loads. This study contributes to the development of more environmentally friendly road pavement materials with better performance.
Indirect Tensile Stiffness Modulus (ITSM) Analysis of Asbuton Mixture with Used Oil Additives and HDPE Husni, M Ari; Karyawan, I Dewa Made Alit; Sideman, IAO Suwati
Indonesian Journal of Multidisciplinary Science Vol. 4 No. 11 (2025): Indonesian Journal of Multidisciplinary Science
Publisher : International Journal Labs

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55324/ijoms.v4i11.1184

Abstract

Asbuton is a natural raw material that has great potential in the development of high-quality asphalt mixtures. To optimize its performance, this study explored the use of additives in the form of used oil and high density polyethylene (HDPE) plastic, which is considered to be able to increase the flexibility, adhesion, and stability of the mixture. The commonly used Marshall method is considered less representative in measuring the indirect tensile stiffness of mixtures which is important for assessing elastic response, so Indirect Tensile Stiffness Modulus (ITSM) testing is used to obtain a more comprehensive picture of the performance of asbutone mixtures. This study uses an AC-BC mixture where the Asphalt content is in a combination of Modified Asphalt (MO) and Oil Asphalt (MI), this modified asphalt uses Asbuton which is given an added ingredient of used Oil and HDPE Plastic, this study uses KAO of 6.0% of the total weight of the test object, from the percentage of this KAO combined with 3 compositions of Asphalt mixture, namely Modified Asphalt with Oil Asphalt. Namely 40% Modified Asphalt: 60% Oil Asphalt, 50% Modified Asphalt: 50% Oil Asphalt, and 60% Modified Asphalt: 40% Oil Asphalt, resulting in consecutive ITSM values of 6124 Mpa, 6286 Mpa, and 6738 Mpa. From these results, it can be concluded that with the increase in the composition of modified asphalt, it increases the rigidity of the test specimen.