airport pavement management€¦ · pavement management. tom freeman. program manager, pavement...
TRANSCRIPT
![Page 1: AIRPORT PAVEMENT MANAGEMENT€¦ · Pavement Management. Tom Freeman. Program Manager, Pavement Management. Texas A&M Transportation Institute. Phone: 979-317-2320. E-Mail T-Freeman@TAMU.EDU](https://reader033.vdocuments.site/reader033/viewer/2022051512/602fd2b0f954f1011f54790a/html5/thumbnails/1.jpg)
2017
AIRPORT PAVEMENT MANAGEMENT
![Page 2: AIRPORT PAVEMENT MANAGEMENT€¦ · Pavement Management. Tom Freeman. Program Manager, Pavement Management. Texas A&M Transportation Institute. Phone: 979-317-2320. E-Mail T-Freeman@TAMU.EDU](https://reader033.vdocuments.site/reader033/viewer/2022051512/602fd2b0f954f1011f54790a/html5/thumbnails/2.jpg)
Pavement Management
Tom Freeman
Program Manager, Pavement ManagementTexas A&M Transportation Institute
Phone: 979-317-2320
E-Mail [email protected]
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Pavement Management
PMS Concepts
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Pavement Management
Based on finding a cost-effective treatment,
At a given time,
To give the desired level of service.
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PMS Concepts
Pay me NOW!
or
Pay me LATER!
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PMS Concepts
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PMS Concepts
Good Pavement Costs LessThan Bad Pavement
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PMS Concepts
Good Pavement Costs LessThan Bad Pavement
Over the long-term
If and reasonable level of service is provided
If the pavement will respond to preventive maintenance
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Airport Pavement Inspection
Old Method was Based on LOI Currently on Inspection Schedule
Approximately 90/Yr
3 Year Cycle
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Airport Pavement Inspection
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Airport Pavement Inspection
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Airport Pavement Inspection
TEXT
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Airport Pavement Inspection
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Airport Pavement Inspection
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Airport Pavement Inspection
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Airport Pavement Inspection
Inspect Aircraft Pavements FAA Condition Survey (150/5320-17A)20% Inspection Rate
– 2 Runways (Usually)– Taxiways– Aprons
Overall and Close-up Pictures of– RW Center, Edge, Close-up, and RW Extended– Each Section– Office, Fuel Area
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Airport Pavement Inspection
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Airport Pavement Inspection
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Airport Pavement Inspection
TEXT
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Airport Pavement Inspection
TEXT
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Airport Pavement Inspection
Inspect Aircraft Pavements Videos
– 360o at Runway Ends and Center-ish– Pavement Condition Discussion– High-speed (60mph) – Tour of TWs and Aprons– Entrance Road
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Airport Pavement Inspection
TEXT
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Airport Pavement Inspection
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Airport Pavement Inspection
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Airport Pavement Inspection
Inspect Aircraft Pavements Other Testing
– Deflection
– Profile
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Airport Pavement Inspection
TEXT
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Airport Pavement Inspection
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Airport Pavement Inspection
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Airport Pavement Inspection
Summarize Quantities
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Airport Pavement Inspection
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Airport Pavement Inspection
Write Final Report
– Send to Aviation
– Sent to Airport Manager
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Lessons Learned
Three Major Distresses
–Edge Cracking and Encroachment
–Block Cracking
–Weathering and Raveling
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Edge Cracking and Encroachment
Probably LowSeverity
Lessons Learned
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Not Low Severity!
Lessons Learned
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Lessons Learned
Edge Happens !!– Moisture Changes Along Edge of Pavement
• Less Water Under Pavement
• More Water Along Edge
– Soil Shrinks and Swells
– Differential Temperature
– Fix By Crack Sealing (Kill Weeds)
– May Be Able To Address In Design - Wider Bases
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Encroachment
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Lessons Learned
Encroachment–Weeds and Grasses Along Edge of Pavement
–Causes Cracking Along Edge, FOD, Weathering of Pavement
–Reduces Width of Pavement
–Fix With Mowing, Herbicide, Grading, Millings, Wider Bases
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Block Cracking - Low SeverityLessons Learned
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Medium Block Cracking, Medium Weathering
Lessons Learned
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Lessons Learned
What Causes This?–Sun/Ultraviolet and Oxygen Remove Volatiles
(Maltenes)
–Pavement Gets Brittle
–Daily and Annual Temperature Cycling
–Lack of Traffic
–Asphalt Wears Away, Aggregate Gets Loose
–Hello FOD, Goodbye Paint
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Lessons Learned
For Airports, Block Cracking is Death.
–No Inexpensive Treatments to Fix
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Lessons Learned
What Fixes This–Fix By Mill and Overlay, Cape Seal, or Reconstruct
• Expensive
• Deteriorates Slowly, So We Can Wait. Fog to Reduce Rate
• Best to PREVENT
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Lessons Learned
Weathering and Ravelling– Weather is Loss of Fine Aggregate
– Ravelling is Loss of Coarse Aggregate
– Most Common Distress
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Lessons Learned
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Lessons Learned
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Lessons Learned
What Fixes This• Fix Weathering and Raveling by Fog, Coal Tar, Rejuvenator,
Slurry, Overlay, Reconstruct
– Best to PREVENT
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Lessons Learned
Plan of Attack– Seal Cracks (Every Two Years@ $0.10/Ft)
– Blade Edges and Kill Weeds (Annual)
– Fog Seal (Every 2-4 Years @ $0.10 - $0.20/SY)
– Rejuvenator (See Manufacturer)
– Slurry Seal (5-7 Years @ $1/SY)
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Lessons Learned
Why Preventive Maintenance?
Why Not Just Let it Rot?
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Lessons Learned
Advantages of a Preventive Maintenance Strategy
• Lower Overall Cost
• Better Overall Condition
• Fewer Complaints
• Less Down Time
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0
10
20
30
40
50
60
70
80
90
100
0 10 20 30 40 50Age
PC
IPreventiveMaintenance
$1.50/SY $1.20/SY $1.50/SY
Total = $4.20
Runway Closed 1 - 3 Days Each Time
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0
10
20
30
40
50
60
70
80
90
100
0 10 20 30 40 50Age
PCI
Overlay
$6/SY $6/SY $6/SY
Total = $18
Runway Closed 4 - 10 Days Each Time
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0
10
20
30
40
50
60
70
80
90
100
0 10 20 30 40 50Age
PC
IReconstruct
$12/SY $12/SY
Total = $24
Runway Closed 4- 6 Months Each Time
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Where Do You Turn For Assistance TxDOT
– Division of Aviation
• 1-800-68-Pilot
Department of Transportation
• RAMP Coordinators
Consultants
Me - Tom Freeman [email protected]
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Finale
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Questions?