Impact of construction on pavement performance

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dc.contributor.author Bazi, Gabriel M.
dc.contributor.author Sebaaly, Peter E.
dc.date.accessioned 2017-11-28T07:14:29Z
dc.date.available 2017-11-28T07:14:29Z
dc.date.copyright 2004 en_US
dc.date.issued 2017-11-28
dc.identifier.uri http://hdl.handle.net/10725/6681
dc.description.abstract The long term performance of hot mix asphalt (HMA) pavements is significantly impacted by the properties of the HMA mixture. Regardless of how well the mix design and structural design have been prepared, the properties of the materials delivered to the job site, such as gradation, binder content, and the in-place compaction will ultimately control the behavior of the pavement under the combined action of traffic and environment. The job mix formula allows for certain tolerances in the HMA construction. This research studied the effect of construction variability on performance if the delivered product goes outside the tolerances range. The construction variability was studied for the northern (Lockwood) and southern (Sloan) Nevada aggregate sources mixed with an unmodified AC-20 and AC-30, respectively. Forty-two mixes were prepared for each source and tested for general strength using the resilient modulus, for rutting using the Asphalt Pavement Analyzer, for fatigue using the flexural beam fatigue and for thermal cracking using the Thermal Stress Restrained Specimen Test. Construction variability has a significant impact on pavement performance regardless of the aggregate source and binder type. However, some laboratory prepared mixtures may provide better performance than the optimum mixture but such mixtures may be impractical in the field. If the contractor violates the specification limits, then there is 81% chance that the pavement section will have lower performance than the optimum mix, therefore quality control is recommended to keep the mixes within the specification limits. en_US
dc.language.iso en en_US
dc.title Impact of construction on pavement performance en_US
dc.type Conference Paper / Proceeding 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.identifier.ctation Sebaaly, P. E., & Bazi, G. M. (2004). Impact of construction variability on pavement performance (No. RDT 04-050,). 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 https://scholar.google.com/scholar?hl=en&as_sdt=0%2C5&q=Impact+of+construction+variability+on+pavement+performance&btnG= en_US
dc.note Report Number: RDT 06-004 Report Date: December 2005 en_US
dc.author.affiliation Lebanese American University en_US

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