Abstract
To increase sidewalks in Indonesia there are several things that must be considered, such as aggregate quality, implementation methods and asphalt quality. The amount of waste plastic waste in Indonesia at this time and in the years to come, can be reprocessed, one of them is by using it as an additive in the technique of making asphalt concrete. It is expected that a complex problem related to the amount of plastic waste piles can be turned into an opportunity to build the acceleration and quality of concrete asphalt roads in Indonesia. The method used for this research is the wet process, which is the direct method of mixing plastic material into asphalt which is heated at temperature according to Tait’s parameters, then added aggregate. The optimum asphalt used in this study was 5.7%. The variables used are 5%, 7%, and 9% of the plastic for substitution at the optimum level of asphalt used. Plastic variable added 100% high density polyethylene (HDPE) plastic, 100% polypropylene (PP), HDPE: PP and mixture (50:50), then Marshall Test. The best results were obtained by adding 9% plastic mixture variable with HDPE: PP ratio (1:1) resulting in an increase of 179% MQ then normal asphalt.
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