Seasonal effects on a low-volume road flexible pavement

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dc.contributor.author Bazi, Gabriel
dc.contributor.author Briggs, Robert
dc.contributor.author Saboundjian, Steve
dc.contributor.author Ullidtz, Per
dc.date.accessioned 2017-10-12T06:46:44Z
dc.date.available 2017-10-12T06:46:44Z
dc.date.copyright 2015 en_US
dc.date.issued 2017-10-12
dc.identifier.issn 2169-4052 en_US
dc.identifier.uri http://hdl.handle.net/10725/6302
dc.description.abstract Alaska’s Parks Highway is a 323-mi, asphalt-paved, predominantly two-lane, low-volume roadway that links the state’s two largest cities (Anchorage and Fairbanks). The effects of thawing on this low-volume roadway pavement were assessed, and seasonal adjustment factors for the different pavement layers were developed. Falling weight deflectometer (FWD) testing was carried out weekly during springtime at three temperature data probe sites. The purpose of the FWD tests was to monitor the pavement structural conditions and moduli variations during the spring thaw and recovery periods. When the pavement began to thaw, how quickly thawing progressed, and whether the pavement returned to an equilibrium summertime state were also determined. Observations indicated that profound changes in backcalculated modulus values could occur within 1 week of thaw onset. In addition, moduli were used to develop modular ratios for the subgrade and base course layers. Results showed that while thawing, the subgrade and base course layers reached about 30% to 40% and 50% to 70%, respectively, of their summertime reference moduli. These ratios were lower than those currently used in Alaskan pavement design. Additional testing should be conducted to verify the proposed seasonal adjustment factors. Surface moduli values, calculated and plotted without the need for the pavement layer thicknesses, are useful in instantly identifying whether partial thawing has occurred. en_US
dc.language.iso en en_US
dc.title Seasonal effects on a low-volume road flexible pavement
dc.type Article en_US
dc.description.version Published en_US
dc.author.school SOE en_US
dc.author.idnumber 201407244 en_US
dc.author.department Civil Engineering en_US
dc.description.embargo N/A en_US
dc.relation.journal Transportation Research Record en_US
dc.journal.volume 2510 en_US
dc.article.pages 81-89 en_US
dc.identifier.doi https://doi.org/10.3141/2510-10 en_US
dc.identifier.ctation Bazi, G., Briggs, R., Saboundjian, S., & Ullidtz, P. (2015). Seasonal Effects on a Low-Volume Road Flexible Pavement. Transportation Research Record: Journal of the Transportation Research Board, (2510), 81-89. en_US
dc.author.email gabriel.bazi@lau.edu.lb en_US
dc.identifier.tou http://libraries.lau.edu.lb/research/laur/terms-of-use/articles.php en_US
dc.identifier.url http://trrjournalonline.trb.org/doi/abs/10.3141/2510-10 en_US
dc.author.affiliation Lebanese American University en_US

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