Cessation temperature
As HMA cools, the asphalt binder eventually becomes viscous enough to effectively prevent any further reduction in air voids regardless of the applied compactive effort. As a rule-of-thumb the temperature at which this occurs, commonly referred to as cessation temperature, is about 79¡C (175¡F) for dense-graded HMA. The grade of PG binder is known to have somewhat of an effect on cessation temperature.