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New Technologies Land on Airport Pavements

AAPTP Background. Cooperative Agreement FAA

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New Technologies Land on Airport Pavements

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    1. New Technologies Land on Airport Pavements Rocky Mountain Asphalt Conference February 18-20, 2009

    2. AAPTP Background Cooperative Agreement FAA & AU Created in 2004 $2million/year $1.6 million for 3 year obtained Organized similar to TRB NCHRP 19 Projects funded Future dependent upon New FAA Legislation in Congress

    4. Obstacles for Technology Lack of experience with technology Aversion to risk Differences between airport and highways FAA lack of encouragement

    5. Technologies Introduced PG Binder Grading (04-02) Superpave (04-03) SMA (04-04) Guidelines for Rubblization (04-01) Longitudinal Joints (04-05)

    6. Projects of Interest HMA Airport Construction Best Practice Manual (05-01) Techniques for Mitigation of Reflective Cracking (05-04) Use of RAP in Airport Pavements (05-06)

    7. Projects Underway Life Cycle Cost Analysis For Airfield Pavements (06-06) Non Coal Tar Based Fuel Resistant Sealers and Binders (05-02) Techniques for Prevention and Remediation of Non-load Related Distresses (05-07 & 06-01) Effect of De-icing Chemical on HMA Airfield Pavements (05-02)

    8. Projects Underway (Cont.) Non-destructive Testing to Identify Presence and Extent of Delamination of HMA Airfield Pavements (06-04) Use of Recycled ASR PCC Materials in HMA (06-02) Guidelines for Use of State DOT Specs (06-05) Performance Base Specs for Airfields (06-3) Assessment of Existing Overlay Design Procedures for Airfield Pavements (06-07)

    9. Change from highways to airfield Considerations for airfield use Gross vehicle weights Number of loads Speed of Loadings Wander Use of pavement facility Availability of required asphalt grade Project 04-02 PG Binder Selection

    10. PG Binder Selection Background PG System Design based upon highway traffic and expected temperatures at the pavement site Grades based upon same performance measurement at different temperatures PG 64-22 represents a binder that provides satisfactory performance at a high temperature of 64 C and at a low temperature of -22C

    12. LTPPBind Software

    13. Procedure Convert aircraft weights into Equivalent Highway loads (EHE) Select base temperature from LTPPBind 3.1 Adjust for traffic and pavement location on facility Check for availability within US PG Binder Selection

    14. Convert Aircraft to EHE

    15. PG Adjustments

    16. Check for Availability

    17. Questions?

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