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المؤلفKhan, Mohammad S.
المؤلفKassem, Emad
المؤلفMcDonald, Armando
المؤلفSirin, Okan
المؤلفAston, D. Eric
تاريخ الإتاحة2024-03-26T10:27:33Z
تاريخ النشر2022-04-12
اسم المنشورJournal of Transportation Engineering Part B: Pavements
المعرّفhttp://dx.doi.org/10.1061/JPEODX.0000376
الاقتباسKhan, 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.
معرّف المصادر الموحدhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85128894066&origin=inward
معرّف المصادر الموحدhttp://hdl.handle.net/10576/53514
الملخصThis 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.
راعي المشروعThis 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).
اللغةen
الناشرAmerican Society of Civil Engineers (ASCE)
الموضوعAging
Asphalt binder
Carbonyl index
Fourier-transform infrared spectroscopy (FTIR)
Gel permeation chromatography (GPC)
Large molecular size% (LMS%)
العنوانComparative Characterization of Field and Laboratory-Aged Binders Modified with Antioxidant Additives and Copolymers Using Fourier Transform Infrared Spectroscopy and Gel Permeation Chromatography
النوعArticle
رقم العدد2
رقم المجلد148
ESSN2573-5438
dc.accessType Full Text


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