9. The purpose of PAV test is to: a) simulate short-term aging of asphalt concrete manufacture b) Simulate oxidative agi

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9 The Purpose Of Pav Test Is To A Simulate Short Term Aging Of Asphalt Concrete Manufacture B Simulate Oxidative Agi 1 (46.16 KiB) Viewed 17 times

9. The purpose of PAV test is to: a) simulate short-term aging of asphalt concrete manufacture b) Simulate oxidative aging during service c) Determine temperature below which there's no fire hazard d) Correlate fatigue damage and rutting 10. Which one is NOT the advantage of asphalt emulsion over cutback? a) It cures faster b) It is cost effective. c) It does not release hazardous materials. d) It uses water to make emulsion 11. What distress mode will most likely happen if hard grade asphalt is used in a cold arca? a) Rutting b) Fatigue cracking c) Thermal cracking d) None of them 12. On the viscosity of asphalt binder, which statement is NOT correct? a) Viscosity of asphalt decreases when temperature increases. b) Viscosity of asphalt decreases after aging. c) Viscosity of asphalt increases after hot mixing and placing. d) Viscosity of asphalt increases after volatilization of hydrocarbons. 13. Which one is NOT the reason to compact asphalt concrete? a) To prevent further compaction b) To provide shear strength or resistance to rutting e) To ensure the mixture is waterproof d) To ensure excessive oxidation of the asphalt binder. 14. What is NOT the advantages of warm mixed asphalt? a) Energy savings b) Decreased emissions c) Decreased fumes d) Increased binder ageing 15. To simulate the aging of asphalt binder after 5-year service, which test should be conducted? a) RTFO b) PAV c) Flash point d) Rotational viscometer.