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Hot mix asphalt design prediction and field performance, an arizona study



Title: Hot mix asphalt design prediction and field performance, an arizona study
Author(s): G. B. Way, J. Sousa, K. Kaloush
Paper category : conference
Book title: Sixth International RILEM Symposium on Performance Testing and Evaluation of Bituminous Materials
Editor(s): M. N. Partl
Print-ISBN: 2-912143-35-7
e-ISBN: 2912143772
Publisher: RILEM Publications SARL
Publication year: 2003
Pages: 543 - 549
Total Pages: 7
Nb references: 11
Language: English


Abstract: The Arizona Department of Transportation in cooperation with the Federal Highway Administration and private industry designed and built numerous experimental paving projects from 1993 through 2001. Projects were built in a variety of different Arizona climatic zones representing hot desert climates and cold snowfall mountainous regions. Traffic truck loading levels also varied from state highways to major Interstate freeways.The purpose of all of these projects is to use new laboratory tests developed as part of the SHRP and the Superpave Models to characterize cracking and rutting of various hot mix asphalt types. The fatigue cracking test is the four point bending beam test. The rutting test is the repetitive simple shear test at constant height and the triaxial creep test. As a result of this early experimental work, the ADOT adopted the SHRP asphalt grading system in 1997 for all paving projects. SHRP consensus aggregate properties with regard to a greater degree of crushed coarse and fine particles and the fine aggregate angularity were also adopted in 1997. Asphalt rubber open graded friction courses and gap graded mixes continue to be used to compliment the structural HMA layers as the final wearing surface.


Online publication: 2003-03-02
Publication type : full_text
Public price (Euros): 0.00
doi: 10.1617/2912143772.068


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