Experimental Investigation on Asphalt Binders Ageing Behavior and Rejuvenating Feasibility in Multicycle Repeated Ageing and Recycling
Joint Authors
Nie, Yihua
Sun, Shiheng
Ou, Yajun
Zhou, Chenyang
Mao, Kunli
Source
Advances in Materials Science and Engineering
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-04-05
Country of Publication
Egypt
No. of Pages
11
Abstract EN
Multicycle repeated utilization of reclaimed asphalt pavement (RAP) is a quite recent development of sustainable pavement materials technology.
To investigate ageing rules and recycling possibility of asphalt binders in repeatedly used asphalt mixture, virgin asphalt AH-70 samples were heated by the rolling thin film oven test (RTFOT) at 163°C, respectively, for 40, 85, 180, 240, and 300 minutes to simulate different ageing degrees, and then the aged ones were rejuvenated by adding a self-made rejuvenator.
This ageing and recycling process was repeated altogether for 5 cycles to simulate repeated use of RAP binders.
In repeated recycling, rejuvenator contents for different cycle numbers or ageing durations were not the same, and the optimum ones were initially estimated by an empirical formula and finally obtained by comparative tests.
Empirical rheological tests and the infrared spectral (IR) analysis were done before and after each cycle of recycling.
Results indicate that for impact on deterioration of asphalt binders, ageing time is more important than cycle number.
Meanwhile, the asphalt after multicycle repeated ageing and recycling can be restored to the empirical rheological indices level of the virgin asphalt and meet specifications requirements.
American Psychological Association (APA)
Nie, Yihua& Sun, Shiheng& Ou, Yajun& Zhou, Chenyang& Mao, Kunli. 2018. Experimental Investigation on Asphalt Binders Ageing Behavior and Rejuvenating Feasibility in Multicycle Repeated Ageing and Recycling. Advances in Materials Science and Engineering،Vol. 2018, no. 2018, pp.1-11.
https://search.emarefa.net/detail/BIM-1121004
Modern Language Association (MLA)
Nie, Yihua…[et al.]. Experimental Investigation on Asphalt Binders Ageing Behavior and Rejuvenating Feasibility in Multicycle Repeated Ageing and Recycling. Advances in Materials Science and Engineering No. 2018 (2018), pp.1-11.
https://search.emarefa.net/detail/BIM-1121004
American Medical Association (AMA)
Nie, Yihua& Sun, Shiheng& Ou, Yajun& Zhou, Chenyang& Mao, Kunli. Experimental Investigation on Asphalt Binders Ageing Behavior and Rejuvenating Feasibility in Multicycle Repeated Ageing and Recycling. Advances in Materials Science and Engineering. 2018. Vol. 2018, no. 2018, pp.1-11.
https://search.emarefa.net/detail/BIM-1121004
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1121004