Analysis of the Effect of Adding PET (Polyethylene Terephthalate) Plastic Waste to a Laston Aus (AC-WC) Mixture Using the Marshall Method
Analisis Pengaruh Penambahan Limbah Plastik PET (Polyethylene Terephthalate) pada Campuran Laston Lapis Aus (AC-WC) Menggunakan Metode Marshall
DOI:
https://doi.org/10.21070/ups.12457Keywords:
AC-WC, Marshall, PET, plastic waste, wet processAbstract
Laston Lapis Aus (AC-WC) is a surface layer of flexible pavement that is directly exposed to traffic loads and environmental effects. This study aimed to analyze the effect of PET plastic waste addition on the Marshall characteristics of AC-WC mixtures and determine whether an optimum PET content could be obtained. PET contents of 0%, 2%, 4%, and 6% were used with asphalt contents of 5.40%, 5.90%, and 6.40%, resulting in 36 main specimens. The mixtures were prepared using the wet process and evaluated based on density, stability, flow, Marshall Quotient (MQ), VIM, VMA, and VFA. The results showed non-linear changes in Marshall characteristics. At 5.90% asphalt, the highest stability of 4,790.77 kg was obtained at 4% PET, while the highest MQ of 1,202.23 kg/mm occurred at 6% PET. However, VIM remained above the specified range. Therefore, the optimum PET content could not be determined.
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