Perlakuan Campuran antara Material Aspal dengan Plastik dan Pengaruhnya Terhadap Marshall Test

Abstract

One of the material additions in road pavement often conducted is plastic waste to improve the asphalt quality. The reason why plastic used as the material addition in asphalt pavement is because of the characteristics of plastic which are strong, flexible, and hard destroyed. Based on the fact, plastic also has a high softening point so it is hoped to be able to improve the hot asphalt mixture resistance to the influence of the temperature and elasticity. The LDPE (Low-Density Polyethylene) plastics were used in this study as the asphalt replacement material by the purpose of whether it is positive which can be applied in the roads of Indonesia and also be one of the plastic waste problems handling in Indonesia. There are two ways of the plastic addition to improving the asphalt quality, namely the first way is smelting the plastic then added to the hot asphalt, the second is without smelting the plastic (plastic chopped and put into the hot aggregate). The first way was used in this study. Before conducting the Marshall test and durability on the mixture, it was needed to prepare the materials and the materials tester. After the all met the standard, it was conducted the printing of testing means by asphalt level of 6.0% of the total mixture. The testing means were conducted in three variations namely using 100% of Asphalt, adding 4% of plastic, and using 6% of LDPE plastic which then pounded as many 2 times 75 (2 x 75). Then, the Marshall test result showed that the average stability without plastic added was 3690.555 kg and the average smelting was 3.053 mm. The 4% plastic added obtained the average stability of 4617.596 kg and the average smelting of 2.816 mm, whereas on 6% obtained the average stability of 4463.262 kg and the average smelting of 2.773 mm. After conducting the Marshall test, the result obtained that on plastic added type Low-Density Polyethylene by smelting the plastic of 4% and 6% can not be used to the AC – WC mixture.