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SW I FT CONFERENCE 2 0 0 6 PAVEMENT DEFECTS AND REPAI R Mounir - PowerPoint PPT Presentation

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SW I FT CONFERENCE 2 0 0 6 PAVEMENT DEFECTS AND REPAI R Mounir Moughabghab PEng AAE Outline 1 . I ntroduction to Pavem ent Defects 1 . I ntroduction to Pavem ent Defects 2 . Pavem ent Quality Characteristics 2 . Pavem ent Quality

  1. SW I FT CONFERENCE 2 0 0 6 PAVEMENT DEFECTS AND REPAI R Mounir Moughabghab PEng AAE

  2. Outline 1 . I ntroduction to Pavem ent Defects 1 . I ntroduction to Pavem ent Defects 2 . Pavem ent Quality Characteristics 2 . Pavem ent Quality Characteristics 3 . Asphalt Pavem ent Defects 3 . Asphalt Pavem ent Defects 4 . PCC Pavem ent Defects 4 . PCC Pavem ent Defects 5 . PCC Pavem ent Repairs 5 . PCC Pavem ent Repairs 6 . Catchbasin/ Manhole Top Adjustm ent 6 . Catchbasin/ Manhole Top Adjustm ent

  3. Introduction to Pavement Defects � DEFECTS INFLUENCES ON PAVEMENT QUALITY RIGID PAVEMENT � FLEXIBLE PAVEMENT � � TYPICAL FLEXIBLE PAVEMENT DEFECTS AT TPIA LONGITUDINAL CRACKS � TRANSVERSE CRACKS � SLIPPAGE CRACKS � SHOVING AND RUTTING � � TYPICAL RIGID PAVEMENT DEFECTS AT TPIA SPALLING AT JOINTS � CORNER CRACKS � TRANSVERSE CRACKS � ERRATIC CRACKS � � STANDARD DRAWINGS FOR REPAIR WORK

  4. Pavement Quality Characteristics Defect Influence on Pavement Quality Characteristics Pavement Strength Smoothness Skid Structural Surface Defects Resistance Integrity Drainage Asphalt Pavements Χ Χ Transverse Cracking Χ Χ Longitudinal Cracking Χ Χ Alligator Cracking Χ Χ Map Cracking Χ Χ Block Cracking Χ Χ Raveling Χ Χ Χ Χ Rutting Χ Bleeding

  5. Pavement Quality Characteristics Defect Influence on Pavement Quality Characteristics Pavement Strength Smoothness Skid Structural Surface Defects Resistance Integrity Drainage Concrete Pavements Χ Χ Χ Slab Cracking Χ Χ Corner Cracking Χ Χ Edge Cracking Χ Χ Scaling & Spalling Χ Joint Faulting

  6. Pavement Quality Characteristics Defect Influence on Pavement Quality Characteristics Pavement Strength Smoothness Skid Structural Surface Defects Resistance Integrity Drainage All Pavements Χ Χ Surface Texture Χ Rubber Deposits Χ Χ Χ Settlement/ Ponding Χ Frost Heave Χ Χ Patching Χ Χ “Pot-Holes” Χ Shoulder Erosion Χ Shoulder Slopes Χ Catch Basin Heave

  7. Asphalt Pavement Defects: Slippage Crack Taxiway Delta Constructed 1997 Observed November 1, 2000 Repaired November 10, 2000

  8. Asphalt Pavement Defects: Shoving and Rutting CAUSE: HIGH ASPHALT CEMENT CONTENT, LOW VOID RATIO, HIGH TACK / PRIME COAT APPLICATION RATES, HIGH SUMMER TEMPERATURE AND HEAVY WHEEL LOADS STOP AND GO

  9. Asphalt Pavement Defects: Shoving and Rutting CAUSE: HIGH ASPHALT CEMENT CONTENT, LOW VOID RATIO, HIGH TACK / PRIME COAT APPLICATION RATES, HIGH SUMMER TEMPERATURE AND HEAVY WHEEL LOADS STOP AND GO

  10. Asphalt Pavement Defects: Slippage at Inset Lights

  11. Asphalt Pavement Defects: Slippage at Inset Lights

  12. Asphalt Pavement Defects: Slippage & Shoving over PCC

  13. Asphalt Pavement Defects: Cracks at Longitudinal Joints CAUSE: WEEK LONGITUDINAL JOINTS, LATE JOINT/CRACK SEALING AND WATER INFILTRATION

  14. Asphalt Pavement Defects: Transverse Cracks over PCC Transverse & Reflection Cracks CAUSE: REFLECTION CRACKS- HMAC OVERLAY ON PCC SLABS

  15. PCC Pavement Defects: Diagonal Cracks CAUSE: DIFFERENTIAL SUBGRADE SUPPORT & SETTLEMENT

  16. PCC Pavement Defects: Diagonal Cracks CAUSE: DIFFERENTIAL SUBGRADE SUPPORT & SETTLEMENT

  17. PCC Pavement Defects: Corner & Diagonal Cracks CAUSE: DIFFERENTIAL SUBGRADE SUPPORT & SETTLEMENT AND OVERSTRESSED CORNER

  18. PCC Pavement Defects: Transverse Cracks CAUSE: LOSS OF SUBGRADE SUPPORT,

  19. PCC Pavement Defects: Spalling at Joints & Compression Cracks CAUSE: INPROPER JOINT SEALING, DEBRIS IN JOINT PREVENT MOVEMENT

  20. PCC Pavement Defects: Joint Faulting/Stepping CAUSE: LOSS OF KEYWAY SUPPORT

  21. GATE 522 INFIELD TERMINAL: ERRATIC CRACKS CAUSE: SUBGRADE SETTLEMENT, FROST HEAVE, FRICTION BONDING TO SUBBASE

  22. PCC Pavement Defects: Causes

  23. PCC Pavement Defects: Causes

  24. PCC Pavement Repairs: General Rules � < ¼ INCH (6.5 MM) LEAVE ALONE � ¼ – ½ INCH (6.6 – 13 MM) ROUTE AND SEAL � 3/8 – 1 INCH (9.5 – 25 MM) TIE STITCHING & ROUTE SEAL � > 1 INCH (25 MM) FULL DEPTH REPAIR NOTES: � PCC SLABS WITH MORE THAN TWO CRACKS OVER 13 MM WIDE, FULL SHOULD BE REPLACED � CORNER CRACKS LARGER THAN 13 MM SHOULD BE PARTIALLY FULL DEPTH REPLACED

  25. PCC Pavement Repairs: General Guide

  26. PCC Pavement Repairs: General Guide

  27. PCC Pavement Repairs: Full Depth Repair

  28. PCC Pavement Repairs: Partial Depth Repair

  29. PCC Pavement Repairs: Cross Stitching

  30. PCC Pavement Repairs: Routing and Sealing

  31. PCC Pavement Repairs: Restoration After Trenching

  32. Catchbasin/Manhole Top Adjustment

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