Evaluation of Hot Mix Asphalt Moisture Sensitivity Using the Nottingham Asphalt Test Equipment

dc.contributor.author Williams, R.
dc.contributor.author Breakah, Tamer
dc.contributor.author Williams, R.
dc.contributor.department Institute for Transportation
dc.date 2018-02-13T13:42:36.000
dc.date.accessioned 2020-06-30T04:50:25Z
dc.date.available 2020-06-30T04:50:25Z
dc.date.embargo 2013-08-28
dc.date.issued 2010-03-01
dc.description.abstract <p>Pavements are subjected to different stresses during their design lives. A properly designed pavement will perform adequately during its design life, and the distresses will not exceed the allowable limits; however, there are several factures that can lead to premature pavement failure. One such factor is moisture sensitivity.</p> <p>AASHTO T 283 is the standard test used in the moisture susceptibility evaluation of asphalt mixtures, but the results of the test are not very representative of the expected behavior of asphalt mixtures. The dynamic modulus test measures a fundamental property of the mixture. The results of the dynamic modulus test can be used directly in the Mechanistic-Empirical Pavement Design Guide (MEPDG) and are considered a very good representation of the expected field performance of the mixture. Further research is still needed to study how the dynamic modulus results are affected by moisture. The flow number test was studied in previous research as a candidate test for moisture-susceptibility evaluation, but the results of that research were not favorable.</p> <p>This research has four main objectives. The first objective of this research is to evaluate the usefulness of the dynamic modulus and flow number tests in moisture-susceptibility evaluation. The second objective is to compare the results to those achieved using the AASHTO T 283 test. The third objective is to study the effect of different methods of sample conditioning and testing conditions. The fourth objective of the research is to study the variability in the test results.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/intrans_reports/15/
dc.identifier.articleid 1016
dc.identifier.contextkey 4518626
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath intrans_reports/15
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/44776
dc.language.iso en
dc.relation.ispartofseries IHRB Project TR-555
dc.source.bitstream archive/lib.dr.iastate.edu/intrans_reports/15/Williams_Asphalt_moisture_report.pdf|||Fri Jan 14 20:30:14 UTC 2022
dc.subject.disciplines Civil Engineering
dc.subject.keywords Civil Construction and Environmental Engineering
dc.subject.keywords compaction
dc.subject.keywords dynamic modulus test
dc.subject.keywords flwo number
dc.subject.keywords MEPDG
dc.title Evaluation of Hot Mix Asphalt Moisture Sensitivity Using the Nottingham Asphalt Test Equipment
dc.type article
dc.type.genre report
dspace.entity.type Publication
relation.isAuthorOfPublication 7cc8558c-bf2b-4713-bb66-e82d14bb79a3
relation.isOrgUnitOfPublication 0cffd73a-b46d-4816-85f3-0f6ab7d2beb8
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