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Abstract:The scope of the work encompassed evaluating the effect of Vestoplast on the performance of hot mix asphalt. The Vestoplast was added to a Port Authority of New York and New Jersey (PANYNJ) FAA #3 asphalt mixture with a PG64-22 asphalt binder. Two baseline mixes were also evaluated for comparisons: 1) FAA #3 with a PG64-22 and 2) FAA #3 with a PG76-22. The FAA #3 with a PG64-22 was the base mix used prior to the addition of the Vestoplast. This allows for a comparison of the increase or decrease in performance simply due to the addition of the Vestoplast additive. The FAA #3 with PG76-22 would be the performance the researcher was striving to achieve with the Vestoplast modification. Three different characterization tests were used to evaluate the performance of the mixtures: 1) dynamic modulus (AASHTO TP62-07); 2) flexural beam fatigue (AASHTO T321); and repeated load (NCHRP report 465).
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