Polyethylene Terephthalate (PET) plastic bottle waste can be used as an additive in asphalt mixtures. The use of asphalt mixed with plastic bottle waste helps strengthen the bond between aggregates and simplifies the process of use. This research aims to determine the stability and flow values of Asphalt Concrete-Wearing Course (AC-WC) asphalt mixtures with the addition of PET plastic bottles using Marshall testing. The research method was carried out experimentally in the laboratory with reference to Bina Marga 2018 specifications. The variation of PET addition used was 0%; 4%; 6%; and 8% by weight of asphalt with Optimum Asphalt Content of 6.15%. The results showed that the highest stability value was found in the 8% variation with a value of 1372.38 kg, but did not exceed the stability of the normal mixture. Meanwhile, the highest yield value was also found in the 8% variation with a value of 4.07 mm, but did not meet the 2018 Bina Marga specifications. In this study, the maximum PET content was 7.83%, while the optimum PET content was 5.94%.
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