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المؤلفSadek, Husam
المؤلفMasad, Eyad
المؤلفSirin, Okan
المؤلفAl-Khalid, Hussain
المؤلفHassan, Khaled
تاريخ الإتاحة2024-03-27T08:07:09Z
تاريخ النشر2014-09-08
اسم المنشورJournal of Performance of Constructed Facilities
المعرّفhttp://dx.doi.org/10.1061/(ASCE)CF.1943-5509.0000627
الاقتباسSadek, 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.
الرقم المعياري الدولي للكتاب0887-3828
معرّف المصادر الموحدhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84941894277&origin=inward
معرّف المصادر الموحدhttp://hdl.handle.net/10576/53573
الملخصThe 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.
راعي المشروعThis 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.
اللغةen
الناشرAmerican Society of Civil Engineers (ASCE)
الموضوعDynamic modulus
Falling weight deflectometer (FWD)
Mechanistic-empirical pavement design
Perpetual pavement
Qatar
Semicircular bending
العنوانPerformance evaluation of full-scale sections of asphalt pavements in the State of Qatar
النوعArticle
رقم العدد5
رقم المجلد29
ESSN1943-5509
dc.accessType Full Text


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