Developing a Rehab Strategy FHWA & CRSI · The Keys to Developing a Rehab Strategy Understanding the mechanisms causing the distress Understanding the impact of the rehab strategy

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CRCP RehabilitationCRCP RehabilitationACPA Meeting

Richmond, VirginiaMarch 7, 2007

Richard B. Rogers, P.E. (Texas)

The Keys to Developing a Rehab The Keys to Developing a Rehab StrategyStrategy

Understanding the mechanisms causingthe distressUnderstanding the impact of the rehab strategy on pavement performance

FHWA & CRSIFHWA & CRSI

CRCP Suite of GuidesCRCP Suite of Guides

Developing a Rehab StrategyDeveloping a Rehab StrategyRecords ReviewEvaluationAnalysis

ANALYSISANALYSIS ANALYSISANALYSIS

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CRCP Rehab OptionsCRCP Rehab OptionsIsolated repairs

Isolated RepairsIsolated Repairs

Full depth

Isolated RepairsIsolated Repairs

Full depthPartial depth

CRCP Rehab OptionsCRCP Rehab OptionsIsolated repairsGrinding

GrindingGrinding

Restore skid (may expose soft CA)

GrindingGrinding

Restore skid (may expose soft CA)Added smoothness

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GrindingGrinding

Restore skid (may expose soft CA)Added smoothnessReduce noise

GrindingGrinding

Restore skid (may expose soft CA)Added smoothnessReduce noiseLooks good

CRCP Rehab OptionsCRCP Rehab OptionsIsolated repairsGrindingStitching

Stitching Longitudinal JointsStitching Longitudinal JointsSafety

Stitching Longitudinal JointsStitching Longitudinal JointsSafetyEstablish Load Transfer

Stitching Longitudinal JointsStitching Longitudinal JointsSafetyEstablish Load TransferReduces Loss of Support

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CRCP Rehab OptionsCRCP Rehab OptionsIsolated repairsGrindingStitchingTied Concrete Shoulders

Tied Concrete ShouldersTied Concrete Shoulders

Increased Structural Capacity


Increased Structural CapacityProtects the Layers Under the Load


Increased Structural CapacityProtects the Layers Under the LoadDetour or Traffic Lane

CRCP Rehab OptionsCRCP Rehab OptionsIsolated repairsGrindingStitchingTied Concrete ShouldersBonded CRCP Overlay

Bonded CRCP OverlayBonded CRCP Overlay

Increased Structural Capacity

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Increased Structural CapacityAdded Steel to Hold Cracks Tight


Increased Structural CapacityAdded Steel to Hold Cracks TightMinimum Increase in Thickness


Increased Structural CapacityAdded Steel to Hold Cracks TightMinimum Increase in ThicknessRequirements

Effective bond to existing CRCP



Effective bond to existing CRCPLoad transfer efficiency of at least___?



Effective bond to existing CRCPLoad transfer efficiency of at least___?Stabilize areas with loss of support

CRCP Rehab OptionsCRCP Rehab OptionsIsolated repairsGrindingStitchingTied Concrete ShouldersBonded CRCP OverlayUnbonded CRCP Overlay

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UnbondedUnbonded CRCP OverlayCRCP Overlay

Requires Less Repair


Requires Less RepairHMA Layer Required

Bond Breaker



Bond BreakerLevel Up



Bond BreakerLevel Up> Distress Requires > Thickness



Bond BreakerLevel Up> Distress Requires > Thickness

Existing CRCP Treated as a Layer in a Composite Structure

CRCP Rehab OptionsCRCP Rehab OptionsIsolated repairsGrindingStitchingTied Concrete ShouldersBonded CRCP OverlayUnbonded CRCP OverlayThin HMA Overlay

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Interstate 664Interstate 664Interstate 664Interstate 664

Interstate 664Interstate 664NBNB 1212

Interstate 664Interstate 664NB 17NB 17

Interstate 664Interstate 664NB after 17NB after 17

Interstate 664Interstate 664NB Looking NB Looking bkbk PowhatanPowhatan

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Interstate 664Interstate 664NB near exit lane CollegeNB near exit lane College

Interstate 664Interstate 664NB Newport News 27thNB Newport News 27th

Interstate 664Interstate 664NB Port NB Port OverhdOverhd Sign5Sign5

Interstate 664Interstate 664NB Ports NB Ports OverhdOverhd SignSign



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Interstate 664Interstate 664NB PowhatanNB Powhatan

Interstate 664Interstate 664NB NB PughsvillePughsville RdRd

Interstate 664Interstate 664NB NB PughsvillePughsville RdRd

Interstate 664Interstate 664NB under NB under PughsvillePughsville RdRd

Interstate 664Interstate 664NB under Town PtNB under Town Pt

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Interstate 664Interstate 664NB NB

Interstate 664Interstate 664SB After Powhatan OSB After Powhatan O

Interstate 664Interstate 664SB After Powhatan SB After Powhatan

Interstate 664Interstate 664SB Looking back at Powhatan21SB Looking back at Powhatan21

Interstate 64Interstate 64Interstate 64Interstate 64

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Interstate 64 WInterstate 64 W1991 31991 3rdrd LaneLane

Interstate 64 WInterstate 64 W1991 31991 3rdrd LaneLane

Interstate 64 WInterstate 64 W(a)(a)

Interstate 64 WInterstate 64 W(b)(b)

Interstate 64 WInterstate 64 W(c)(c)

Interstate 64 WInterstate 64 W(d)(d)

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Interstate 64 WInterstate 64 W(e)(e)

Interstate 64 WInterstate 64 W(f)(f)

Interstate 64 WInterstate 64 W(g)(g)

Interstate 64 WInterstate 64 W(h)(h)

Interstate 64 WInterstate 64 W(k)(k)

Interstate 64 WInterstate 64 W(l)(l)

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Interstate 64 WInterstate 64 W(m)(m)

Interstate 64 WInterstate 64 W(n)(n)

Interstate 64 WInterstate 64 W(o)(o)

Interstate 64 WInterstate 64 W(p)(p)

Interstate 64 WInterstate 64 W(q)(q)

Interstate 64 WInterstate 64 W(r)(r)

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Interstate 295 EastInterstate 295 East

Interstate 295 EastInterstate 295 East(a)(a)

Interstate 295 EastInterstate 295 East(b)(b)

Interstate 295 EastInterstate 295 East(c)(c)

Interstate 295 EastInterstate 295 East(d)(d)

Interstate 295 WestInterstate 295 West

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Interstate 295 WestInterstate 295 West(e)(e)

Interstate 295 WestInterstate 295 West(f)(f)

Interstate 295 WestInterstate 295 West(g)(g)

Questions?

Developing a Rehab Strategy FHWA & CRSI · The Keys to Developing a Rehab Strategy Understanding the mechanisms causing the distress Understanding the impact of the rehab strategy

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