As new materials are being developed, new test methods have also been developed to better predict performance. European test methos have been imported to the U.S., and the Strategic Highway research program also developed new laboratory methods to better characterize liquid asphalt and asphalt mixtures in terms of field performance. Samples were taken during the construction of the taxiway and of field performance. Samples were taken during the construction of the taxiway and run through a variety of performance tests. The polymer modified liquid asphalt tested as a Superpave Performance Grade PG 82-22. That means the asphalt binder should not contribute to permanent deformation at pavement temperatures up to 82 deg C (179.6 deg F), and thermal cracking at temperatures down to 22 deg C (-7 deg F).
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