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R/W 15-33 Rehabilitation. Pavement Condition North 3000 feet North 8000 feet.

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Presentation on theme: "R/W 15-33 Rehabilitation. Pavement Condition North 3000 feet North 8000 feet."— Presentation transcript:

1 R/W 15-33 Rehabilitation

2 Pavement Condition North 3000 feet North 8000 feet

3 NDT Deflection Data Basin Area LTE Effective slab thickness Interlayer properties Subgrade support

4 Factors: E c Friction Subgrade k Design Aircraft – B ???

5 Average Values of NDT Parameters of R/W 15L-33R ParameterNorth 3000 ftMiddle 5000 ftSouth 4000 ft Area (in.) RRS (in.) h e (in.) Dynamic k value (psi.in) Interlayer friction coefficient LTE (%) # of Joints < 70%

6 Deflection Analysis

7 B 777

8 Subgrade Stress Limits

9 General ClassificationApproximate Resilient Modulus at a Deviatoric Stress of Approximately 6 psi Approximate Unconfined Compressive Strength, psi Stiff, fine-grained subgrade12,35033 Medium, fine-grained subgrade 7,68023 Soft, fine-grained subgrade3,02013 Very soft, fine-grained subgrade 1,0006

10 Present FEM Capability Bonded Layers Unbonded Layers

11 Partial Bond P

12 Overlay Design – B ???

13 Middle 5000 feet 98% Reliability

14 Joint LTE Restoration Middle 5000 ft Restored LTE Repair LTE# joints 80%<70% 83%<73% 85%<77%


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