5 - rwmKDOT_NDEpeer20221128_7min (2) (Rick Miller - Kansas).ppsx

Real Estate ppt

1. Kansas DOT
NonDestructive
Testing with
Pavements Peer
11/28/2022
Rick Miller, PMS Engineer KDOT

2. KDOT Interest in NDE for Pavements
•Mostly a report on KDOT use of FWD/TSD
•Interest in the pooled fund, but not enough hours to commit

3. KDOT History with NDE for Pavements
•Long History with FWD (Falling Weight Deflectometer)
•Still collecting FWD when we can
•Ran over one FWD with Traffic Control
•Use FWD both at Project and Network Level
•Learning to use TSD (Traffic Speed Deflection)
•2018-2022 ~1700 miles of TSD data
•Why does KDOT care about deflection of pavements?

4. KDOT History with NDE for Pavements

5. KDOT History with NDE for Pavements
•Long History with FWD (Falling Weight Deflectometer)
•Still collecting FWD when we can
•Ran over one FWD with Traffic Control
•Use FWD both at Project and Network Level
•Learning to use TSD (Traffic Speed Deflection)
•2018-2022 ~ 2000(CHECK) miles of TSD data
•Why does KDOT care about deflection of pavements?

6. KDOT History with NDE for Pavements
Western
Kansas
TSD collection
~375 miles
July 2020
Oklahoma to Nebraska
U-169/U-400/K-99
TSD collection
~275 miles
July 2022
I-70 TSD collection
~500 miles
July/August 2018
U-83/K-383/U-36/K-
23
~250 miles
September 2022
Eastern Kansas
TSD collection
~300 miles
November/December
2018

7. KDOT History with NDE for Pavements
•Long History with FWD (Falling Weight Deflectometer)
•Still collecting FWD when we can
•Ran over one FWD with Traffic Control
•Use FWD both at Project and Network Level
•Learning to use TSD (Traffic Speed Deflection)
•2018-2022 ~1700 miles of TSD data
•Why does KDOT care about deflection of pavements?

8. KDOT History with NDE for Pavements

9. KDOT TSD Findings of Note
•Comparisons between FWD and TSD (a simple view)
•TSD and slippage (an ugly picture)
•TSD and sinkholes (what you can’t see)

10. KDOT TSD Findings of Note
•Comparisons between FWD and TSD (a simple view)
•TSD and slippage (an ugly picture)
•TSD and sinkholes (what you can’t see)

11. KDOT TSD Findings of Note

12. KDOT TSD Findings of Note
•Comparisons between FWD and TSD (a simple view)
•TSD and slippage (an ugly picture)
•TSD and sinkholes (what you can’t see)

13. KDOT Future with NDE
•Repeat of why we care, but we are getting others in KDOT to
care...
•FWD/TSD and project scopes (do we need structure)

14. Thank you
•[email protected]