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A review on rejuvenating materials used with reclaimed hot mix asphalt

Al Saffar, Zaid Hazim and Haryati, Yaacob and Mohd Khairul Idham, Mohd Satar and Saleem, Mhmood Khleel and Lai, Jau Choy and Putra Jaya, Ramadhansyah (2020) A review on rejuvenating materials used with reclaimed hot mix asphalt. Canadian Journal of Civil Engineering. ISSN 0315-1468 (Print); 1208-6029 (Online)

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Abstract

In recent years, flexible pavement construction technology has relied heavily on the use of reclaimed asphalt pavement (RAP). However, the brittle nature of RAP, which stems from the use of an aged asphalt, has introduced numerous complexities into the process, with important implications to pavement service life. The properties of the aged asphalt can be rejuvenated to improve the performance and the behavior of RAP mixtures. This paper presents a review of past works that have used rejuvenating materials with RAP, including their benefits and drawbacks, as well as the optimal approach to increase RAP content in asphaltic mixtures. The method of rejuvenating aged asphalt and the mechanism of rejuvenation are also reviewed. The findings of this review can be used to predict the current and future challenges in the regeneration of RAP mixtures using rejuvenating materials.

Item Type: Article
Uncontrolled Keywords: Reclaimed asphalt pavement (RAP); Hot mix asphalt (HMA); Rejuvenators; Recycling agents, Aged asphalt, Stiffness.
Subjects: T Technology > TE Highway engineering. Roads and pavements
Faculty/Division: College of Engineering
Depositing User: PM Dr. Ramdhansyah Putra Jaya
Date Deposited: 12 Aug 2020 08:33
Last Modified: 12 Aug 2020 08:33
URI: http://umpir.ump.edu.my/id/eprint/27878
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