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AuthorSadek, Husam
AuthorMasad, Eyad
AuthorSirin, Okan
AuthorAl-Khalid, Hussain
AuthorHassan, Khaled
Available date2024-03-27T08:07:09Z
Publication Date2014-09-08
Publication NameJournal of Performance of Constructed Facilities
Identifierhttp://dx.doi.org/10.1061/(ASCE)CF.1943-5509.0000627
CitationSadek, H., Masad, E., Sirin, O., Al-Khalid, H., & Hassan, K. (2015). Performance evaluation of full-scale sections of asphalt pavements in the State of Qatar. Journal of Performance of Constructed Facilities, 29(5), 04014123.
ISSN0887-3828
URIhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84941894277&origin=inward
URIhttp://hdl.handle.net/10576/53573
AbstractThe population and economy in the State of Qatar have been increasing in the past 5 years. Accordingly, traffic loading has also increased rapidly, which affected the performance of existing roads and highways. This high traffic loading merits consideration of the design and construction of long-lasting pavements that require minimal maintenance. The Transport Research Laboratory (TRL) in collaboration with the Public Works Authority (PWA) of Qatar constructed a field experiment that consisted of six different pavement sections in order to investigate the influence of using different materials and asphalt mixture designs on performance. This paper presents a comprehensive study for the field evaluation of the performance of these trial sections. The evaluation involved the use of the falling weight deflectometer (FWD) and a vehicle equipped with instruments for measuring permanent deformation and cracking. These field measurements were complemented with laboratory measurements on field cores: the dynamic modulus, flow number, and semicircular bending tests. The results revealed that the increase in temperature between winter and summer in Qatar reduced the stiffness of asphalt mixtures by about 80%. The sections in which polymer-modified bitumen was used had the lowest temperature susceptibility. Moreover, the results showed that the bitumen and aggregate type significantly affected the stiffness and the trial sections' resistance to rutting and fracture.
SponsorThis work was supported by Qatar National Research Fund (QNRF) through the National Priority Research Program (NPRP) Project 08-310-2-110. This project was awarded jointly to Texas A&M at Qatar and Qatar University. The researchers at Texas A&M at Qatar also acknowledge the support through NPRP 4-789-2-293.
Languageen
PublisherAmerican Society of Civil Engineers (ASCE)
SubjectDynamic modulus
Falling weight deflectometer (FWD)
Mechanistic-empirical pavement design
Perpetual pavement
Qatar
Semicircular bending
TitlePerformance evaluation of full-scale sections of asphalt pavements in the State of Qatar
TypeArticle
Issue Number5
Volume Number29
ESSN1943-5509
dc.accessType Full Text


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