Electronic Theses and Dissertation

Infrastruktur transportasi darat merupakan elemen penting dalam memfasilitasi mobilitas barang dan jasa. Hal ini bergantung pada penyediaan material pembangunan jalan. Inovasi yang dapat dilakukan adalah meningkatkan mutu aspal beton dengan menambahkan bahan tambah. Pada penelitian ini, bahan tambah yang digunakan yaitu plastik berjenis LPDE (Low Density Polyethylene). Untuk mengurangi limbah plastik LDPE, Peneliti menggunakan plastik LDPE murni dan LDPE hasil pirolisis berjenis blend untuk mengetahui pengaruh pencampuran terhadap karakteristik campuran laston lapis aus (AC-WC). Setelah melakukan pengujian, didapatkan nilai KAO yaitu 5,29%, 5,79%, dan 6,29% yang masing-masing persentase disubstitusi terhadap LDPE murni pada kadar 3%, 6%, dan 9% dengan metode pencampuran kering dan dilakukan pengujian Marshall. Diperoleh kadar LDPE rata-rata terbaik pada persentase 5,35% dengan kadar aspal rata-rata 5,79%. Dilakukan pengujian substitusi LDPE murni dan LDPE hasil pirolisis dengan kadar 5,35%. Hasil penelitian menunjukkan nilai stabilitas terbaik pada substitusi LDPE murni 5,35% yaitu sebesar 1068,15 kg, sedangkan pada substitusi LDPE hasil pirolisis 5,35% yaitu sebesar 1004,46 kg. Untuk mencari kadar alternatif LDPE hasil pirolisis, dilakukan pengujian substitusi LDPE hasil pirolisis 4,5% dan diperoleh nilai stabilitas yaitu sebesar 1011,02 kg. Nilai tersebut lebih tinggi dibandingkan dengan LDPE pirolisis 5,35%, namun LDPE murni pada kadar 5,35% masih lebih baik dibandingkan dengan LDPE hasil pirolisis pada kadar 4,5% dan 5,35%. Nilai parameter yang terkait yaitu kepadatan, VIM, VMA, VFA, stabilitas, flow, dan MQ telah memenuhi Bina Marga 2020. Pengujian durabilitas dilakukan dengan perendaman pada kadar LDPE terbaik selama 30 menit dan 24 jam untuk menentukan keawetan campuran aspal dan didapatkan nilai stabilitas 99,69%. yang telah memenuhi Bina Marga 2020 yaitu ≥ 90%.

Kata kunci : Low Density Polyethylene (LDPE) murni , LDPE hasil Pirolisis, Laston Lapis Aus (AC-WC), Metode Pencampuran Kering.

Land transportation infrastructure is an important element in facilitating the mobility of goods and services. This depends on the provision of road construction materials. The innovation that can be done is to improve the quality of asphalt concrete by adding additional materials. In this study, the added material used is LPDE (Low-Density Polyethylene) type plastic. To reduce LDPE plastic waste, researchers used pure LDPE plastic and blended LDPE pyrolysis results to determine the effect of mixing on the characteristics of the worn layered concrete mixture (AC-WC). After conducting the test, the Bitumen Optimum Content values were obtained, namely 5.29%, 5.79%, and 6.29%, each of which was substituted for pure LDPE at levels of 3%, 6%, and 9% with the dry mixing method and tested. Marshall. The best average LDPE content was obtained at a percentage of 5.35% with an average asphalt content of 5.79%. Substitution of pure LDPE and LDPE pyrolysis results were tested with a concentration of 5.35%. The results showed that the best stability value was 5.35% pure LDPE substitution, which was 1068.15 kg, while the pyrolysis LDPE substitution was 5.35%, which was 1004.46 kg. To find alternative levels of LDPE pyrolysis results, a substitution test of LDPE pyrolysis results of 4.5% was carried out and the stability value was obtained, namely 1011.02 kg. This value is higher than pyrolysis LDPE 5.35%, but pure LDPE at 5.35% is still better than pyrolysis LDPE at 4.5% and 5.35% respectively. The related parameter values, namely density, VIM, VMA, VFA, stability, flow, and MQ have met the 2020 Highways. The durability test was carried out by immersing the best LDPE content for 30 minutes and 24 hours to determine the durability of the asphalt mixture and obtained a stability value of 99,69%. which has fulfilled the 2020 Highways, which is 90%. Keywords : Pure Low Density Polyethylene (LDPE) , LDPE pyrolysis results, Asphalt Concrete Wearing Course (AC-WC), dry Mixing Method