new materials in bridge maintenance - nysdot home · this presentation highlights some of the...
TRANSCRIPT
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Peter J. Weykamp, P.E. NYSDOT
Transportation Maintenance Division 50 Wolf Road, POD 51
Albany, NY 12232 (518) 457-8485
Synopsis:
Bridge maintenance involves performing long term treatments and repairs in a short period of time with minimal equipment under live traffic conditions. Traffic volumes and user delays discourage overnight or long term lane closures. Therefore, innovative and unique repair materials are necessary to get the lane back into service as quickly as possible. Fortunately, there is no shortage of product vendors soliciting the bridge maintenance community to try their new or improved products. Unfortunately, their claims often exceed actual performance. This presentation highlights some of the promising products tried by NYSDOT bridge maintenance forces. New materials suited to common bridge maintenance needs, such as expansion joint and deck repairs, will be presented. The advantages and limitations of each product will be discussed. A few non-material products, such as hardware and equipment, that have proven useful in bridge maintenance will also be presented.
About the Presenter:
Peter Weykamp received his B.S. from the University of Buffalo in 1983 and his M.P.A. from the State University of New York at Albany in 1988. He is currently the Bridge Maintenance Program Engineer for NYSDOT Transportation Maintenance Division. This work involves establishing bridge maintenance goals, network and project level programming for minor repairs and preventive maintenance for all state-owned highway structures. Pete works closely with Regional Bridge Maintenance Engineers to improve maintenance procedures, evaluate materials and methods, and identify program needs. Pete has over 21 years of experience in bridge design, research, construction, and maintenance on projects for the NYSDOT.
SESSION 5.2
New Products in Bridge Maintenance
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October 2004
Department of Transportation
NEW PRODUCTS IN BRIDGE NEW PRODUCTS IN BRIDGE MAINTENANCEMAINTENANCE
Statewide Conference on Local Bridges
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Presentation
Materials in useConcrete repairsDeck treatments SpecificationsApplications
Hardware ConcernsSummary
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Field Testing/Trial InstallationsState forcesState assetVariety of conditionsVariety of designsLiability
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Expansion JointsApproval processSpecificationSpecial specificationMaintenance usage
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Approval ProcessElastomeric Concrete
Draft materials specApproved list
Joint FillerApproved listManufacture Cert.
Joint systemCyclic loadingField trials
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Deck Repair Materials
Deck patchingDeck cracksDeck overlays
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Deck Patching MaterialsCementitious
Approved listMaterials specification
Non-cementitiousLimited to mag phos
PolymerLimited to MMA
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Field TestingVarious materialsPerformance
ShrinkageBond
Procedure review
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Test Results
Poor Bond
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Patch ProtectionFill crackBridge crack
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“Healer/Sealers”Limited experience ApplicationsDOT specification
Structures special spec
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Thin Polymer OverlaysLimited useApplicationsNo specification
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Material TypesHigh Molecular Weight Methacrylates
3 part mixBest penetration
Methyl Methacrylates2 part mixDOT hazardous material designation
Epoxy2 part mixLow odor
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Safety
MSDSPPEIH testing
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Exposure Levels
050
100150200250300350400
Methyl Methacrylate Petroleum Distillates
BRMBRMPESH
400100PESH PEL[4]
3-50.007142Employee 2
3-5<0.006 [3]149Employee 1
Petroleum Distillates[2]Methyl Methacrylate[1]Time (minutes)Employee
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SafetyBe awareMurphy’s lawBe prepared
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Paver-Placed TreatmentsMicrosurfacingNova-chipSpecial spec
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Fiber Reinforced PolymersFRP – EIApproved list
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Overhead Sign Structures 5 year repairTraining avail.
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Direct Tension Indicators
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Shoring systemsEFCOPeri
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Equipment
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Equipment
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Homemade Equipment
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Summary
Safety firstLimited experienceLots of productsExperimentalEvolving specifications
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Peter Peter WeykampWeykampBridge Maintenance Program EngineerBridge Maintenance Program Engineer
(518) 457(518) [email protected]@dot.state.ny.us