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 - - PowerPoint PPT Presentation

Oct 29, 2022 113 likes •447 views

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

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SW I FT CONFERENCE 2 0 0 6 PAVEMENT DEFECTS AND REPAI R

Mounir Moughabghab PEng AAE

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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 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 . Asphalt Pavem ent Defects 3 . Asphalt Pavem ent Defects

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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

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Pavement Quality Characteristics

Defect Influence on Pavement Quality Characteristics

Pavement Defects Strength Smoothness Skid Resistance Structural Integrity Surface Drainage Χ Bleeding Χ Χ Χ Χ Rutting Χ Χ Raveling Χ Χ Block Cracking Χ Χ Map Cracking Χ Χ Alligator Cracking Χ Χ Longitudinal Cracking Χ Χ Transverse Cracking Asphalt Pavements

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Defect Influence on Pavement Quality Characteristics

Pavement Defects Strength Smoothness Skid Resistance Structural Integrity Surface Drainage Χ Joint Faulting Χ Χ Scaling & Spalling Χ Χ Edge Cracking Χ Χ Corner Cracking Χ Χ Χ Slab Cracking Concrete Pavements

Pavement Quality Characteristics

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Defect Influence on Pavement Quality Characteristics

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

Pavement Quality Characteristics

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

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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

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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

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Asphalt Pavement Defects: Slippage at Inset Lights

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Asphalt Pavement Defects: Slippage at Inset Lights

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Asphalt Pavement Defects: Slippage & Shoving over PCC

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Asphalt Pavement Defects: Cracks at Longitudinal Joints

CAUSE: WEEK LONGITUDINAL JOINTS, LATE JOINT/CRACK SEALING AND WATER INFILTRATION

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Transverse & Reflection Cracks

Asphalt Pavement Defects: Transverse Cracks over PCC

CAUSE: REFLECTION CRACKS- HMAC OVERLAY ON PCC SLABS

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CAUSE: DIFFERENTIAL SUBGRADE SUPPORT & SETTLEMENT

PCC Pavement Defects: Diagonal Cracks

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PCC Pavement Defects: Diagonal Cracks

CAUSE: DIFFERENTIAL SUBGRADE SUPPORT & SETTLEMENT

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PCC Pavement Defects: Corner & Diagonal Cracks

CAUSE: DIFFERENTIAL SUBGRADE SUPPORT & SETTLEMENT AND OVERSTRESSED CORNER

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PCC Pavement Defects: Transverse Cracks

CAUSE: LOSS OF SUBGRADE SUPPORT,

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PCC Pavement Defects: Spalling at Joints & Compression Cracks

CAUSE: INPROPER JOINT SEALING, DEBRIS IN JOINT PREVENT MOVEMENT

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PCC Pavement Defects: Joint Faulting/Stepping

CAUSE: LOSS OF KEYWAY SUPPORT

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GATE 522 INFIELD TERMINAL: ERRATIC CRACKS

CAUSE: SUBGRADE SETTLEMENT, FROST HEAVE, FRICTION BONDING TO SUBBASE

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PCC Pavement Defects: Causes

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PCC Pavement Defects: Causes

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< 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 PCC Pavement Repairs: General Rules

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PCC Pavement Repairs: General Guide

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PCC Pavement Repairs: General Guide

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PCC Pavement Repairs: Full Depth Repair

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PCC Pavement Repairs: Partial Depth Repair

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PCC Pavement Repairs: Cross Stitching

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PCC Pavement Repairs: Routing and Sealing

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PCC Pavement Repairs: Restoration After Trenching

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Catchbasin/Manhole Top Adjustment