1. General Issues an Asphalt Technology Longitudinal Joints

2. I – 81 Pennsylvania April 2005

3. I-84, New York April 2005

4. I – 84 Connecticut April 2005

6. Penna. Turnpike MP 94 - 99

7. Industry MUST exercise more care in batching placing and compacting asphalt pavements The Port Authority of New York & New Jersey “Raise the bar or lose the work”

8. This is the exception in Maryland, but

9. Pave the first lane straight

10. Compacting Unconfined Edges Unconfined edges may shove out First pass 6 - 12” from edge to develop lateral confinement Second pass slight overhang Compacted portion supports weight of drum

11. Compacted Mat Uncompacted Mat Typical Overlap on Longitudinal Joints Thickness of Rolldown 25-35 mm

12. Bump the joint

13. Wedged Edge

14. Longitudinal Joint Compaction Both drums on hot side first pass Force hot material against joint Hot Mat Cold Mat

15. Longitudinal Joint

16. Do We Need a Joint Density Specification or Prescription Specification ?