1. Full Depth Reclamation
John Hood, BOMAG Americas
March 9, 2011

2. Failing Roadways

3. Failing Roadways

4. What is Full Depth Reclamation?1)
Full Depth Reclamation is a rehabilitation process in which
the full flexible pavement section and a pre-determined
portion of the underlying materials (base and/or sub-grade)
are uniformly pulverized and blended resulting in a
homogeneous stabilized base course.

6. Why Utilize Full Depth Reclamation?
By addressing the entire pavement section, FDR is able to correct delinquent cross sections, increase the load-bearing strength of the base and use 100% of the existing materials.
Substantial savings can be realized while meeting environmental goals and guidelines. 1)

7. Reasons to utilize Full Depth Reclamation?
• Completely eliminates an existing cracking pattern
• Allows for cross section Corrections
• Cost effective when compared to total reconstruction
• Faster and easier than total reconstruction
• Facilitates road widening
• More uniform compaction of processed material
• Environmentally friendly
• Conserves natural resources 1)

8. General Overview of the Full Depth Reclamation Process
Survey the project to gain a clear overview of the work to be performed.
2) Take Core Samples to determine the composition of the road. Take samples at the best and worst portions of the road.
3) Formulate a plan to address the project including the weakest areas of the road. Select additives (cement, calcium chloride, emulsion, foamed bitumen, fly ash, etcetera to assist with strengthening the base. 1)

9. General Overview of the Full Depth Reclamation Process
4) Evaluate the road width and formulate grinding pattern
5) Remove any organic materials (grass, bushes) from shoulders
6) Ensure and correct proper water drainage from ditches.

10. Remove Organic Materials and Correct Water Drainage

11. General Overview of the Full Depth Reclamation Process
7) Grind road and predetermined depth of base material utilizing additional aggregates or additives to insure maximum strength of the finished base. In some instances multiple passes are required
Compact ground roadway with pad-foot roller
9) Shape roadway with motor grader to desired grade

12. Initial Grinding of Roadway and Base

13. Initial Grinding of Roadway and Base

14. Applying Water or Stabilizing Additive

15. Compacting the Recycled Roadway

16. Add Cement Slurry for overly weak area of roadway

17. Distributing Dry Additive Materials on Roadway

18. Remix and Compact Cement treated base

19. Compacting the Recycled Roadway

20. Grading and Shaping the Recycled Roadway

21. General Overview of the Full Depth Reclamation Process
10) Compact roadway with smooth drum or rubber tired roller to finish recycled base.
11) Apply “Fog Seal” asphalt emulsion or final additive to allow water to shed off top of roadway and not soak in.
12) Apply Final Additive, Chip Seal or Overlay.

22. Finish Compacting the Recycled Roadway

23. Recycled and Stabilized Roadway

24. Apply “FOG Seal” Asphalt Emulsion

25. Additional Seal Material and temporary wear course

26. Roadway Prior to Reclamation

27. Chip Seal Roadway

28. Asphalt Overlay Roadway

29. 30+ years of Recycling all over the World
World wide jobsites
Austria
France
Italy
Germany GB
Kenia
Poland
Germany
Spain
Netherland
China
USA
30+ years of Recycling all over the World

30. END