Electronic Theses and Dissertation

Permasalahan sampah plastik semakin meningkat setiap tahun dan menimbulkan dampak negatif terhadap lingkungan, khususnya di wilayah perkotaan. Upaya pengelolaan sampah plastik memerlukan pendekatan inovatif yang tidak hanya berorientasi pada pengurangan volume limbah, tetapi juga memberikan nilai tambah dalam pemanfaatannya. Salah satu alternatif yang berkembang saat ini adalah pemanfaatan limbah plastik pada campuran reclaimed asphalt pavement. Kegiatan ini bertujuan untuk menganalisis potensi penggunaan limbah plastik, khususnya plastik pasca konsumsi seperti karung pupuk. Metodologi Kegiatan meliputi tahapan persiapan limbah plastik, proses pencacahan dan homogenisasi, pencampuran dengan aspal pada variasi persentase tertentu (0%, 5%, 10%, dan 15%), serta pengujian laboratorium untuk mengetahui karakteristik fisik dan mekanik campuran, di antaranya Marshall Stability, Marshall Flow, dan Marshall Quotient. Dari perspektif manajemen lingkungan, pemanfaatan limbah plastik dan reclaimed asphalt pavement memiliki dua keuntungan utama: (1) mengurangi jumlah timbunan sampah karung plastik yang berpotensi mencemari tanah dan perairan, serta (2) mendukung konsep ekonomi sirkular melalui substitusi bahan konstruksi ramah lingkungan. Kegiatan ini diharapkan dapat menjadi rekomendasi strategis dalam pengelolaan sampah perkotaan, sekaligus memberikan kontribusi nyata terhadap pembangunan infrastruktur berkelanjutan.
Kata kunci: limbah plastik, aspal termodifikasi, manajemen lingkungan, pengurangan sampah, infrastruktur berkelanjutan.

The problem of plastic waste continues to increase every year, creating negative impacts on the environment, particularly in urban areas. Plastic waste management requires innovative approaches that not only focus on reducing waste volume but also provide added value through reuse. One alternative that has gained attention is the utilization of plastic waste in reclaimed asphalt pavement. This study aims to analyze the potential use of post-consumer plastic waste, such as fertilizer sacks, as an additive in asphalt using the wet process method. The research methodology includes several stages: preparation of plastic waste, shredding and homogenization, mixing with asphalt at varying percentages (0%, 5%, 10%, and 15%), and laboratory testing to evaluate the physical and mechanical properties of the mixtures, including Marshall Stability, Marshall Flow, and Marshall Quotient. From an environmental management perspective, utilizing plastic waste and reclaimed asphalt pavement provides two main benefits: (1) reducing the amount of plastic waste accumulation that potentially pollutes soil and water, and (2) supporting the circular economy concept through the substitution of more sustainable construction materials. This study is expected to serve as a strategic recommendation for urban waste management while contributing to sustainable infrastructure development. Keywords: plastic waste, modified asphalt, environmental management, waste reduction, sustainable infrastructure.