Abstract
This study aims to determine the effect of the addition of oil palm shell ash on the characteristics of asphalt and its mixtures. Palm shell is chosen as a filler material due to its content of silicon dioxide (SiO2) so that it is used as a suitable binder. This study consisted of several stages: (1) making modified bitumen; (2) testing modified bitumen with asphalt physical requirements method; (3) making and testing specimens; (4) Marshall testing. The results showed that the addition of oil palm shell ash resulted in increased asphalt stability values with the highest stability of 1553 kg from sample 4. Furthermore, the addition of oil palm shell ash resulted in increased asphalt flow values with the highest flow of 3,85 mm from sample 5. Based on the results of the research and discussion, it was concluded that there was an effect of the addition of oil palm shell ash on the characteristics of asphalt and its mixture.
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