| Abstrakt: |
Roads play a crucial role in the infrastructure of land transportation. Transportation plays a significant role in the economy and daily life in Indonesia. Therefore, suitable, flexible road pavement construction is required to promote economic activity in a region. This kind of pavement is frequently used in Indonesia. However, it has the drawback of being subject to high temperatures and excessive vehicle loads, leading to cracking, distortion, wear, and bleeding. Using various kinds of natural materials as substitutes and additives to improve road pavement quality is one alternative that has been tried. These materials can improve the pavement's strength. Therefore, in this study, modified HDPE plastic waste material (high-density polyethylene) with a content of 2%, asphalt content of 6%, and variants of filler at levels of 0%, 25%, 50%, 75%, and 100% as a mixture of rock ash were utilized. This study aims to ascertain how the Marshall Test's values change when modified asphalt, plastic waste, and different types of lime are used as fillers in a rock ash mixture. These values include the stability value, MQ value, and asphalt durability, with a decreasing relationship between the two as stability declines. The highest stability value was obtained at filler content with 6.40 percent asphalt content and a stability value of 1913.37 kg, according to the Marshall test's research findings and final analysis. The MQ value at filler and using HDPE-modified asphalt experienced an increase of 10.57 percent. It was better than the previous researcher's, equivalent to 533.67 kg divided by 591.04 kg/mm. The durability of the 50% lime variant is excellent since it has a little decline after immersion. The best decrease in stability value at this filler level went from 1314.20 kg to 1301.47 kg from the asphalt concrete mixture without immersion. [ABSTRACT FROM AUTHOR] |
