AZ ROC A-14 Asphalt Paving Practice Questions - Arizona ROC A-14 Asphalt Paving Examination Exam

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Under the Performance Graded (PG) binder specification system (AASHTO M320), what does a designation of PG 64-22 indicate?

Penetration value of 64 dmm at 22°C Kinematic viscosity of 64 cSt at 220°F 7-day average maximum pavement design temperature of 64°C and minimum pavement design temperature of -22°C Softening point of 64°F and flash point of 220°F

Correct Answer:

7-day average maximum pavement design temperature of 64°C and minimum pavement design temperature of -22°C

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