Abstract
The Federal Aviation Administration (FAA) National Airport Pavement Test Facility (NAPTF) is located at the William J. Hughes Technical Center, Atlantic City International Airport, New Jersey. The primary objective of the tests performed at the NAPTF is to generate full-scale pavement performance and response data for development and verification of airport pavement design criteria. Four construction cycles (CC1, CC2-OL, CC3, CC5-TS) for testing flexible pavements under heavy aircraft loading have been completed and the fifth one is under way. In both CC1 and CC3, deformation of the aggregate base and aggregate subbase due to densification was noted and contributed to the rutting of the asphalt pavement test sections. This paper will discuss if the Total Void (TV) calculation based upon historic data of CC1 and CC3 can be used to predict the total deformation of the aggregate base and subbase layers in flexible pavements, as well as, to investigate whether the FAA gradation specifications for subbase and base courses are susceptible to deformation based upon the total void calculation.
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