Composite Materials for Maintenance and Repair - U.S. Army
Composite Materials for Maintenance and Repair - U.S. Army
Composite Materials for Maintenance and Repair - U.S. Army
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FRP <strong>Composite</strong>s <strong>for</strong> <strong>Maintenance</strong><strong>and</strong> <strong>Repair</strong> of Navigation StructuresRichard LampoUSA ERDC-CERLLocks <strong>Maintenance</strong> Workshop28 February 2012US <strong>Army</strong> Corps of EngineersBUILDING STRONG ®
Fiber Rein<strong>for</strong>ced Polymer (FRP)<strong>Composite</strong>s• A fiber rein<strong>for</strong>ced polymer (FRP) composite isdefined as a polymer (plastic) matrix that isrein<strong>for</strong>ced (combined) with a fiber or otherrein<strong>for</strong>cing material with a sufficient aspect ratio(length to thickness) to provide a discerniblerein<strong>for</strong>cing function in one or more directions.• Both Thermoset <strong>and</strong> Thermoplastic <strong>Composite</strong>sBUILDING STRONG ®
FRP <strong>Composite</strong> Rein<strong>for</strong>cements <strong>for</strong> Concrete• TYPE OF REINFORCEMENTS Rebars Tendons / Cables Grids Plates Overlays / WrapsCorroded steel rein<strong>for</strong>cementExternal overlaysBUILDING STRONG ®
FRP <strong>Composite</strong> Structural Shapes & PanelsProfile ofcompositedecking<strong>Composite</strong> valve gatePotentialapplication aspanel fillersHybridcompositesheet pilingBUILDING STRONG ®
Rebar rein<strong>for</strong>ced HDPEPolymeric PilingsDolphin clusterFender systemFender pilingsBUILDING STRONG ®
Guide Walls <strong>and</strong> FendersPlastic Timberson Sector GateGuide Wall / BoardwalkBUILDING STRONG ®
Civil Works ChallengesUnique Structures / Difficult <strong>Repair</strong> EnvironmentBUILDING STRONG ®
Survey Questionnaire• Have you ever used FRP compositematerials <strong>for</strong> maintenance <strong>and</strong> repair?• Lessons learned?• Potential applications of FRP composites?• Possible field tests <strong>and</strong> demos?• Barriers to use?• Need <strong>for</strong> guidance?BUILDING STRONG ®
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