rigid pavement concrete. transverse cracking rigid pavement transverse cracking causes: slab longer...

Rigid PavementRigid Pavement

ConcreteConcrete


Transverse CrackingTransverse Cracking



Causes:Causes:Slab longer Slab longer than 15’than 15’

Slab CurlSlab Curl

CuringCuring



Cures:Cures:Crack Crack SealingSealing

Full-depth Full-depth rigid repairrigid repair

Dowel bar Dowel bar retrofitretrofit


Longitudinal CrackingLongitudinal Cracking


Longitudinal Cracking Longitudinal Cracking

Causes:Causes:

Waiting Waiting too long too long to cut to cut center center jointjoint


Longitudinal Cracking Longitudinal Cracking

Causes:Causes:Waiting too Waiting too long to cut long to cut center jointcenter joint

Subsoil Subsoil settlementsettlement





Meander Meander crackscracks



CuresCuresJoint SealingJoint SealingFull Depth Full Depth replacementreplacement

Subsurface Subsurface stabilizationstabilization


PumpingPumping


PumpingPumping

Causes:Causes:WaterWaterFinesFinesLack of load Lack of load transfertransfer

LoadingLoading


PumpingPumping

CuresCuresUnder Under sealingsealing

Dowel bar Dowel bar retrofitretrofit

Full depth Full depth rigid repairrigid repair

Concrete Concrete pavement pavement grindinggrinding


FaultingFaulting


FaultingFaulting

Causes:Causes:End-result of End-result of pumpingpumping


FaultingFaulting

Causes:Causes:End-result of End-result of pumpingpumping

Eroded Eroded subsoilsubsoil


FaultingFaulting

Cures:Cures:Full-depth Full-depth rigid repairrigid repair

UndersealingUndersealingDowel bar Dowel bar retrofitretrofit

GrindingGrinding


Transverse Joint SpallingTransverse Joint Spalling



Causes:Causes:Improper Improper dowel dowel alignmentalignment




Lack of joint Lack of joint sealseal




Lack of joint Lack of joint sealseal

IncompressibIncompressibles in jointles in joint



Cures:Cures:Crack & Joint Crack & Joint SealSeal

Bonded Bonded PatchingPatching

Full-depth Full-depth patchingpatching


Wear & PolishingWear & Polishing



Causes:Causes:Traffic wears Traffic wears off surface off surface aggregateaggregate



Cures:Cures:GrindingGrindingAsphalt Asphalt OverlayOverlay


ScalingScaling


ScalingScaling

Causes:Causes:Non-air-Non-air-entrained entrained concreteconcrete


ScalingScaling


De-icing De-icing chemicalschemicals


ScalingScaling


De-icing De-icing chemicalschemicals

Improper Improper finishing finishing techniquetechnique


ScalingScaling

Cures:Cures:GrindingGrindingAsphalt Asphalt overlayoverlay

Bonded Bonded resurfacingresurfacing

Partial depth Partial depth patchpatch


Shallow ReinforcingShallow Reinforcing



Cause:Cause:Reinforcing Reinforcing Steel too Steel too close to close to surfacesurface



Cure:Cure:Asphalt Asphalt overlay or overlay or patchpatch

Replacing Replacing steel & steel & partial or full partial or full depth repairdepth repair


D-CrackingD-Cracking



Causes:Causes:Poor quality Poor quality aggregateaggregate



Causes:Causes:Poor quality Poor quality aggregateaggregate

Freeze/thaw Freeze/thaw cyclecycle



Cures:Cures:Temporary:Temporary:

Partial Partial depth depth asphalt asphalt patchpatch

Permanent:Permanent:Full-depth Full-depth repairrepair


Corner CrackingCorner Cracking



Causes:Causes:Insufficient Insufficient soil supportsoil support



Causes:Causes:Insufficient Insufficient soil supportsoil support

Temperature Temperature related slab related slab movementmovement



Cures:Cures:Partial or full-Partial or full-depth patchdepth patch

Replace slab Replace slab Stabilize Stabilize subsurfacesubsurface


BlowupsBlowups


BlowupsBlowups

Causes:Causes:Expansion of Expansion of concreteconcrete


BlowupsBlowups


Poorly sealed Poorly sealed jointsjoints


BlowupsBlowups


Poorly sealed Poorly sealed jointsjoints

Hot weatherHot weather


BlowupsBlowups

Cures:Cures:Pressure Pressure relief joints relief joints to preventto prevent

Patch or Patch or reconstructioreconstruction after n after occurrenceoccurrence

rigid pavement concrete. transverse cracking rigid pavement transverse cracking causes: slab longer...

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