Mаtch the Term tо the аnswer thаt falls intо that categоry.
Answer very briefly оr fill in the blаnks (4 pоints eаch unless оtherwise mentioned) 1. Mention TWO reаsons for the flexible pavements to be built in layers. i. -------------------------- ii._____________________ 2. (2) Why is pumping more prevalent on rigid highway pavements? 3. (3) Mention THREE factors that must be present for pumping to occur in concrete pavements. i.________________ ii.________________ iii.________________ 4. (3) Mention THREE factors that must be present simultaneously to produce frost action. i._______________________ ii._______________________ iii._______________________ 5. Why is silt more susceptible to frost than clay? Name one thing you can do in design to prevent the capillary rise in the subgrade. 6. What is the significance of the 0.1-second haversine load pulse in pavement material characterization (no sketch is necessary)? 7. (2 + 2) What are the “mechanistic” and “empirical” parts of the mechanistic-empirical pavement design process? 8. On which pavement does pumping occur more frequently, airports or highways? Why? 9. Name the differences between highways and airport pavements concerning (i) load magnitude and (ii) load placement. Factor Highway Airport Load magnitude ____________ ________________ Load placement ____________ ________________ 10. Mention two ways of controlling expansive soil in the highway subgrade. 1.______________ 2.______________ 11. Mention two strategies for controlling expansion due to high sulfate-rich soil. 1._________________ 2._________________ 12. Name two classes of geosynthetics used for pavement construction. _______________ _______________ 13. (2) What is AADT? 14. (2) How do you classify vehicles when deploying WIM? 15. Mention TWO uses of WIM data. 1.________________ 2.________________ 16. Briefly discuss the operating principle of the following types of Weigh-In-Motion (WIM) technology: Bending plate Capacitative 17. (2) Name ONE primarily moisture-related distress on asphalt pavements. 18. (2) Name ONE primarily moisture-related distress on concrete pavements. 19. Why is cross-slope provided on pavements? Is there any cross slope on the super-elevated pavement?