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AuthorSirin, Okan
AuthorPaul, Dalim K.
AuthorKassem, Emad
AuthorOhiduzzaman, Md
Available date2020-05-14T09:55:43Z
Publication Date2019
Publication NameApplied Sciences (Switzerland)
ResourceScopus
ISSN20763417
URIhttp://dx.doi.org/10.3390/app9142783
URIhttp://hdl.handle.net/10576/14826
AbstractAsphalt mixtures are subjected to short-term aging during the production, placement, and compaction processes. Proper evaluation of asphalt pavement performance relies on the accurate characterization of asphalt mixtures during the design stage. In this study, three different loose asphalt mixtures often used in Qatar were evaluated to develop a laboratory short-term aging procedure. Sample mixtures 1 and 3 were collected from a construction site, while mixture 2 was obtained from an asphalt plant. Virgin aggregates and binders were also collected to reproduce the mixtures in the laboratory. Laboratory-produced mixtures were conditioned at 135 °C using various time durations. The mechanical properties of laboratory-produced mixtures were compared to those of mixtures produced on site. The results of the mechanical and binder testing demonstrated that the proper short-term aging protocol for asphalt mixtures often used in road construction in the State of Qatar would involve heating asphalt mixtures for 4 h at 135 °C before laboratory compaction.
SponsorFunding: This paper was made possible by the NPRP grant (NPRP 6-773-2-320) from the Qatar National Research Fund (a member of the Qatar Foundation). The findings herein reflect this work and are solely the responsibility of the authors.
Languageen
PublisherMDPI AG
SubjectAsphalt mixture
Asphalt mixture performance tester (AMPT)
Dynamic modulus
Short-term aging
Superpave binder testing
TitleEvaluation of short-term aging protocol for asphalt mixtures
TypeArticle
Issue Number14
Volume Number9
dc.accessType Open Access


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