The purpose of the investigation was to obtain the variation in trends of the thermoviscoelastic properties of an asphaltic concrete subjected to normal temperature and to high temperature during pre-heating, mixing, and compaction. The specimens were tested in uniaxial tension and uniaxial compression at constant strain rates varied over 5 decades and for temperature between—50 and 150°F. The ultimate stress varied 2 orders of magnitude while the ultimate strain varied by a factor of about 3 for the given extremes of test temperature and strain rates investigated. The four fundamental thermoviscoelastic properties for each set of tests were summarized on a single graph. Smith failure envelopes showed how the maximum ultimate stress increased and the maximum ultimate strain decreased with increased mixing and compaction temperatures. Results of the material characterizations in this study compare favorably with previous investigations.