Across
- 5. Air travel hub
- 7. Major public road
- 8. Material used to block leaks
- 9. Not synthetic
- 11. Laying a road surface
- 13. Leading or representative product
- 14. Positively charged (chemistry term)
- 16. Large inland body of water
- 19. Structure that spans a gap or roadway
- 21. Item made for sale
- 23. Color commonly associated with asphalt
- 24. Sticky petroleum-based binder
- 25. Additive that changes properties
- 26. Purified through processing
- 27. Extracting materials from the earth
- 28. Heavy-equipment scoop
Down
- 1. Blends of immiscible liquids
- 2. Road surface depression
- 3. Underground passageway
- 4. Liquid surface coating
- 6. Aircraft takeoff and landing strip
- 10. Road-surfacing material made from bitumen
- 11. Sticky, tar-like substance
- 12. Finished road surface
- 15. End point or airport building
- 17. Protective surface layers
- 18. Caribbean island known for natural asphalt
- 20. Barrel for transporting materials
- 22. Binding material in construction
- 23. Extremely hot or bubbling