Karakteristik Campuran Aspal Porus dengan Pemanfaatan Limbah Plastik PET pada Substitusi Aspal Modifikasi. (Characteristics of Porous Asphalt Mixtures Utilizing PET Plastic Waste as a Substitute in Modified Asphalt)

Sugiarto, Moch Rizqi (2026) Karakteristik Campuran Aspal Porus dengan Pemanfaatan Limbah Plastik PET pada Substitusi Aspal Modifikasi. (Characteristics of Porous Asphalt Mixtures Utilizing PET Plastic Waste as a Substitute in Modified Asphalt). Undergraduate thesis, Universitas 17 Agustus 1945 Surabaya.

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Abstract

This study aims to analyze the characteristics of porous Asphalt mixtures using PET plastic waste as a substitute for PG 70 modified asphalt with OGA 14 gradation based on AAPA (2004). The Optimum Asphalt Content (OAC) was determined by evaluating Marshall Stability, Flow, Marshall Quotient (MQ), Cantabro Loss (CL), and Asphalt Flow Down (AFD) at asphalt contents of 4%, 4.5%, 5%, 5.5%, and 6%. The results showed that the 6% asphalt content provided the optimal performance, with a stability value of 964.50 kg (≥500 kg), Flow of 1.75 mm, MQ of 556.02 kg/mm, CL of 12.42% (≤35%), and AFD of 0.26% (≤0.3%). Therefore, the 6% asphalt content was selected as the OAC due to its highest stability and lowest CL value. At the OAC condition, PET substitution levels of 0%, 2.5%, 5%, and 7.5% were applied, with 0% PET used as the control mixture. Increasing the PET content within the range of 2.5%–7.5% tended to improve the stability and stiffness of the mixture, as indicated by the increase in stability from 864.03 kg to 1245.81 kg and MQ from 444.82 kg/mm to 1008.97 kg/mm. Conversely, the Flow value decreased from 2.00 mm to 1.25 mm with increasing PET content, resulting in only the 2.5% PET variation meeting the specification requirements. Cantabro Loss increased from 7.32% to 29.95%, while Asphalt Flow Down decreased from 0.26% to 0.17%; however, all variations satisfied the AAPA (2004) specifications. Permeability decreased from 0.15 cm/s to 0.14 cm/s for PET contents ranging from 2.5% to 7.5%, while the drainage capability of the mixture was maintained. Based on the research results, the 2.5% PET variation provided optimal performance because it was the only variation that met the Flow specification while maintaining good durability and permeability. These results indicate that PET plastic waste can be used as a substitute for modified asphalt in porous asphalt mixtures without reducing the drainage characteristics and durability of the mixture.Pada kondisi KAO dilakukan substitusi PET sebesar 0%, 2,5%, 5%, dan 7,5%, dengan PET 0% sebagai pembanding. Peningkatan kadar PET pada rentang 2,5%–7,5% cenderung meningkatkan stabilitas dan kekakuan campuran, ditandai dengan peningkatan stabilitas dari 864,03 kg menjadi 1245,81 kg serta MQ dari 444,82 kg/mm menjadi 1008,97 kg/mm. Sebaliknya, nilai Flow menurun dari 2,00 mm menjadi 1,25 mm seiring bertambahnya kadar PET, sehingga hanya variasi PET 2,5% yang memenuhi spesifikasi. Nilai Cantabro Loss meningkat dari 7,32% menjadi 29,95%, sedangkan Asphalt Flow Down menurun dari 0,26% menjadi 0,17%, namun seluruh variasi masih memenuhi spesifikasi AAPA (2004). Nilai permeabilitas pada variasi PET 2,5%–7,5% menurun dari 0,15 cm/detik menjadi 0,14 cm/detik, namun kemampuan drainase campuran tetap terjaga. Berdasarkan hasil penelitian, variasi PET sebesar 2,5% memberikan kinerja paling optimal karena merupakan satu-satunya variasi yang memenuhi spesifikasi Flow dengan durabilitas dan permeabilitas yang baik. Hasil ini menunjukkan limbah plastik PET dapat digunakan sebagai substitusi aspal modifikasi pada campuran aspal porus tanpa mengurangi karakteristik drainase dan ketahanan campuran.

Item Type:	Thesis (Undergraduate)
Uncontrolled Keywords:	Aspal Porus, Limbah Plastik PET, Marshall, Durabilitas, Permeabilitas.
Subjects:	T Technology > TA Engineering (General). Civil engineering (General)
Divisions:	Fakultas Teknik > Program Studi Teknik Sipil
Depositing User:	1432200123 Moch Rizqi Sugiarto
Date Deposited:	18 Aug 2026 07:06
Last Modified:	18 Aug 2026 07:06
URI:	http://repository.untag-sby.ac.id/id/eprint/47717

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