Show simple item record

AuthorKhan, Mohammad S.
AuthorKassem, Emad
AuthorMcDonald, Armando
AuthorSirin, Okan
AuthorAston, D. Eric
Available date2024-03-26T10:27:33Z
Publication Date2022-04-12
Publication NameJournal of Transportation Engineering Part B: Pavements
Identifierhttp://dx.doi.org/10.1061/JPEODX.0000376
CitationKhan, M. S., Kassem, E., McDonald, A., Sirin, O., & Aston, D. E. (2022). Comparative characterization of field and laboratory-aged binders modified with antioxidant additives and copolymers using Fourier transform infrared spectroscopy and gel permeation chromatography. Journal of Transportation Engineering, Part B: Pavements, 148(2), 04022032.
URIhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85128894066&origin=inward
URIhttp://hdl.handle.net/10576/53514
AbstractThis study investigates the behavior of antioxidant additives and copolymers to an asphalt binder by comparing laboratory-aged (up to 60 h) and antioxidant-modified binders with binders extracted from field cores. To evaluate the change in carbonyl, sulfoxide, aromatic, and aliphatic compounds of asphalt binders due to both lab and field-aging, spectral analysis was performed using Fourier transform infrared spectroscopy. A good correlation was found between carbonyl growth and viscosity in the field-aged binders. Chemical analysis with gel permeation chromatography showed that the quantity of large particle sizes increases with the increase in carbonyl growth due to aging. Both Redicote and Solprene were found to retard the growth of large molecular size particles in lab-aged binders when compared to field-aged binders. This study provides further validation of the use of Redicote and Solprene in retarding the aging of asphalt binders. The advanced chemical characterization conducted in this study can be used to evaluate the effectiveness of antioxidant additives and copolymers in retarding oxidative aging and selecting the proper products that work better with specified asphalt binders.
SponsorThis paper was made possible by an NPRP grant (NPRP 6-773-2-320) from the Qatar National Research Fund (a member of the Qatar Foundation).
Languageen
PublisherAmerican Society of Civil Engineers (ASCE)
SubjectAging
Asphalt binder
Carbonyl index
Fourier-transform infrared spectroscopy (FTIR)
Gel permeation chromatography (GPC)
Large molecular size% (LMS%)
TitleComparative Characterization of Field and Laboratory-Aged Binders Modified with Antioxidant Additives and Copolymers Using Fourier Transform Infrared Spectroscopy and Gel Permeation Chromatography
TypeArticle
Issue Number2
Volume Number148
ESSN2573-5438
dc.accessType Full Text


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record