Analisis Pengaruh Variasi Kadar Reclaimed Asphalt Pavement terhadap Karakteristik Kinerja Campuran Beraspal Panas Berbasis Aspal PG 70
Julian Situmorang, Ir. Latif Budi Suparma, M.Sc.,Ph.D.; Ir. Taqia Rahman, S.T., M.Sc., Ph.D.
2025 | Tesis | S2 Mag. S. & T.Transportasi
Preservasi jalan merupakan elemen
penting dalam mempertahankan mobilitas orang dan barang. Campuran beraspal
dituntut tidak hanya ekonomis, tetapi juga memiliki kinerja tinggi untuk
menahan beban kendaraan. Dengan keterbatasan dana preservasi, penggunaan Reclaimed
Asphalt Pavement (RAP) dalam campuran aspal dapat menjadi solusi karena sejalan
dengan prinsip pembangunan berkelanjutan dengan mengurangi limbah konstruksi serta
penggunaan sumber daya alam baru. Kombinasi antara RAP dan aspal Performance
Grade (PG) yang dirancang khusus untuk menghadapi kondisi iklim ekstrem dan
memiliki ketahanan deformasi dapat menjadi pilihan tepat untuk meningkatkan
ketahanan dan umur layan jalan.
Kadar RAP yang digunakan pada
penelitian terdiri atas variasi 0%, 20%, 30%, dan 40%. Penelitian diawali
dengan pengujian material agregat, filler, aspal PG 70, dan RAP. Selanjutnya
dilakukan uji saringan, perhitungan perkiraan kadar aspal, dan uji berat jenis
maksimum (GMM). Pengujian
dilakukan terhadap benda uji kombinasi campuran bertujuan untuk mengevaluasi
karakteristik mekanik, fisik, dan performa dari campuran aspal dengan berbagai
komposisi material, seperti agregat, aspal, filler, dan bahan tambahan
RAP dengan Marshall test, stabilitas Marshall sisa, indirect tensile
strength, dan wheel tracking test.
Hasil pengujian stabilitas Marshall
dari variasi campuran aspal RAP 0%, 20%, 30%, dan 40% masing-masing memiliki
hasil 1.478 kg, 1.711 kg, 1.795 kg, dan 2.006 kg. Hasil pengujian stabilitas
Marshall sisa dari variasi campuran aspal RAP 0%, 20%, 30%, dan 40%
masing-masing memiliki hasil 91,43%; 91,36%; 94,12%; dan 96,84%. Hasil
pengujian dari variasi campuran aspal
RAP 0%, 20%, 30%, dan 40% masing-masing memiliki nilai stabilitas dinamis wheel
tracking test 3.316 lintasan/mm, 12.600 lintasan/mm, 15.750 lintasan/mm,
dan 21.000 lintasan/mm. Hasil pengujian indirect
tensile strength ratio dari variasi campuran aspal RAP 0%, 20%, 30%, dan
40% masing-masing memiliki hasil 86,88%; 79,09%; 88,83%; dan 86,65%. Variasi
RAP 0%, 30%, dan 40% menunjukkan karakteristik mampu menahan deformasi plastis,
kinerja baik pada masa layan, tahan terhadap rutting, dan tahan
kerusakan akibat air.
Road preservation is a vital element
in maintaining people and goods’ mobility. Asphalt mixtures are required to be
not only economical, but also high-performing to withstand vehicle loads. Given
the limitations of preservation funding, the use of Reclaimed Asphalt Pavement
(RAP) in asphalt mixtures can be a viable solution, as it aligns with the
principles of sustainable development by reducing construction waste and the
use of new natural resources. The combination of RAP and Performance Grade (PG)
asphalt, specifically designed to withstand extreme climatic conditions and
provide deformation resistance, can be an effective option to enhance road
durability and service life.
RAP content used in this study
consisted of 0%, 20%, 30%, and 40%. The research started with materials testing,
including aggregate, filler, PG 70 asphalt, and RAP. This was followed by sieve
analysis, asphalt content estimation, and maximum specific gravity (GMM)
testing. The testing of the asphalt mixture specimens aimed to evaluate the
mechanical, physical, and performance characteristics of the mixtures with
various material compositions, using Marshall test, retained Marshall
stability, indirect tensile strength, and wheel tracking test.
The results of the Marshall stability
tests for the RAP asphalt mixture variations of 0%, 20%, 30%, and 40% were
1,478 kg, 1,711 kg, 1,795 kg, and 2,006 kg respectively. The retained Marshall
stability results for the same RAP mixture variations were 91.43%, 91.36%,
94.12%, and 96.84%. The wheel tracking test results for the RAP variations of
0%, 20%, 30%, and 40% yielded dynamic stability values of 3,316 passes/mm,
12,600 passes/mm, 15,750 passes/mm, and 21,000 passes/mm respectively. The
indirect tensile strength ratio results for RAP content variations of 0%, 20%,
30%, and 40% were 86.88%, 79.09%, 88.83%, and 86.65% respectively. The RAP
variations of 0%, 30%, and 40?monstrated characteristics of resistance to
plastic deformation, resistance to rutting, and resistance to moisture damage.
Kata Kunci : Reclaimed Asphalt Pavement (RAP), Aspal PG 70, Stabilitas Marshall, Stabilitas Dinamis, Indirect Tensile Strength Ratio
