The characteristics of Asphalt Concrete – Wearing Course (AC-WC) mixture using Buton Rock Asphalt (BRA) with Oily Sludge (OS) as a rejuvenator

Abstract

Indonesia is a country that has an abundant supply of natural asphalt, namely Buton Rock Asphalt (BRA). The problems faced by the BRA pavement as a binder is the quality of asphalt concrete produced cannot yet compete the oil asphalt pavement as a binder. Therefore, researchers use Oily Sludge (OS) as a BRA rejuvenator. In this study, a test is conducted to identify the behavior and characteristics of Marshall and dynamic stability on the mixture of Asphalt Concrete – Wearing Course (AC-WC) with the use of BRA as a binder and an OS as the rejuvenation material of BRA. The variation of asphalt content used are 4,5%, 5%, 5,5%, 6%, and 6,5%. Based on the result of the test, the dynamic stability value of asphalt and BRA mixture that has been rejuvenated has a higher dynamic stability value than the mixture without BRA.