1. WMA Kenneth Ray Hobson, P.E. Bituminous Engineer

2. Overview State Perspective Qualified Sources Specifications Lab Sampling & Testing Review Acronyms

3. State Perspective Improve Quality –Air Emissions –Density –Longevity Decrease Cost –Burner Fuel Savings Implementation

4. Qualified Sources Approved Technologies: http://v.gd/nBTKiI –Foaming –Chemical –Organic

5. Qualified Sources

6. Specifications WMA Special Provisions –411-13http://v.gd/ljMfSQ411-13http://v.gd/ljMfSQ Behind Paver Min. 215°F [102°C] HMA - 250°F [121°C] –708-22http://v.gd/ohpb4Y708-22http://v.gd/ohpb4Y Reheat from 100°F [38°C] Heat 4 hours at 300°F [149°C] –AASHTO T 283 Moisture Sensitivity –OHD L-55 Hamburg Rut Test

7. Specifications Roadway Compaction Temperature Trends –WMA Chemical 230°F –WMA Foaming 260°F –HMA w/ PG 64-22: 290°F –HMA w/ PG 70-28: 305°F –HMA w/ PG 76-28: 305°F

8. Specifications Designs http://v.gd/eWi4VgDesigns http://v.gd/eWi4Vg

9. Specifications

10. Lab Sampling & Testing Similar to HMA except for Reheat WMA Chemical & Organic Technologies –Lab Compaction Temperatures Vary

12. Automatic Marshall Hammers

13. Superpave Gyratory Compactor (SGC)

14. Review State Perspective –Improve Quality –Decrease Cost –Implementation Qualified Sources - http://v.gd/nBTKiIhttp://v.gd/nBTKiI

15. Review Specifications –411-13http://v.gd/ljMfSQ411-13http://v.gd/ljMfSQ –708-22http://v.gd/ohpb4Y708-22http://v.gd/ohpb4Y Lab Sampling & Testing –Similar to HMA except for Reheat –WMA Chemical & Organic Technologies Lab Compaction Temperatures Vary

16. Acronyms Ndes – Number of SGC Gyrations at JMF Binder Nini – Number of SGC Gyrations backcalculated from Ndes Specimens –Density Similar to That Behind Paver Nmax – Number of SGC Gyrations at End of Pavement Life (mix design only)

17. Acronyms WMA – Warm-Mix Asphalt HMA – Hot-Mix Asphalt RAP – Recycled Asphalt Pavement RAS – Recycled Asphalt Shingles ODOT – Oklahoma Department of Transportation ASA – Anti-Strip Additive