PENGARUH PENGKONDISIAN CAMPURAN BERASPAL PANAS TERHADAP KETAHANAN ALUR DAN FATIK

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Published: Dec 29, 2017

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Dani Hamdani
Pusjatan
Nono -
Pusjatan

Abstract

Benda uji campuran beraspal panas yang disiapkan di laboratorium memiliki kinerja campuran yang berbeda dengan yang diproduksi di unit produksi campuran beraspal. Salah satu perbedaannya adalah lamanya antara rentang waktu pencampuran dan pemadatan campuran beraspal. Hal demikian sangat berpengaruh terhadap tingkat penuaan aspal atau proses oksidasi dari campuran beraspal panas yang disiapkan di laboratorium dan yang diproduksi di unit produksi campuran beraspal. AASHTO R30-02 merekomendasikan untuk pengujian di laboratorium pembuatan benda ujinya  dilakukan pengkondisian. Tujuan penelitian ini adalah mengkaji pengaruh pengkondisian campuran beraspal panas terhadap ketahanan terhadap alur dan fatik. Campuran beraspal panas lapis aus dibuat 2 tipe, yaitu yang dikondisikan di dalam oven pemanas selama 4 jam ± 5 menit pada temperatur yang setara temperatur 135 ± 3 oC dan yang tidak dikondisikan/standar. Berdasarkan hasil kajian di laboratorium dapat diambil kesimpulan, yaitu penurunan nilai penetrasi berturut turut sebesar 22 % dan  17 % pada campuran AC-WC Pen-60 dan ACWC-Polimer yang dikondisikan lebih besar daripada nilai penurunan penetrasi pada Aspal Pen-60 dan aspal Polimer berturut turut sebesar 19 % dan 11 % akibat simulasi penuaan aspal dengan pengujian RTFOT. Campuran beraspal panas AC-WC Pen-60 dan ACWC-Polimer yang mengalami pengkondisian di laboratorium akan mengalami penuaan dan meningkatkan kekakuan campuran beraspal sehingga mempengaruhi ketahanan terhadap alur dan fatik campuran tersebut dengan nilai 5596 MPa dan 3848 MPa dibandingkan dengan kekakuan campuran beraspal panas AC-WC Pen-60 dan ACWC-Polimer standar sebesar 4465 MPA dan 2899 MPa

Article Details

Issue
Vol. 34 No. 2 (2017)
Section
Jalan dan Jembatan

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Author Biography

Dani Hamdani, Pusjatan

Peneliti Muda

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