AASHTO/NTPEP Polymer Concrete Overlays for Bridges and Pavements (PCO)

Alphabet Soup  AASHTO – American Association of State Highway Transportation Officials  NTPEP – National Transportation Product Evaluation Program  e-PEF – Electronic Product Evaluation Form  PCO – Polymer Concrete Overlays

Purpose  Develop and Implement a Nationally Standardized Performance Based Evaluation Process for Polymer Concrete Overlay Systems  Reduce Redundancy of Testing  Produce Valuable Unbiased Data

Polymer Concrete Overlays  Work Plan Scheduled for Ballot in November 2012 Scheduled for Ballot in November 2012 Extending Field Test Decks to 3-Yr EvaluationExtending Field Test Decks to 3-Yr Evaluation  Testing Facilities KYTC – Division of Materials KYTC – Division of Materials Field Test Deck Field Test Deck  Sample Submission and Data Reporting PCO PEF Design.xlsm PCO PEF Design.xlsm PCO PEF Design.xlsm PCO PEF Design.xlsm PDF Posted to NTPEP TC Webpage PDF Posted to NTPEP TC Webpage

PCO Work Plan  Manufacturers Participation Annual submission cycle Annual submission cycle September 12, 2012September 12, 2012 Overlay submitted as a system Overlay submitted as a system Resin and AggregateResin and Aggregate Five year resubmission cycle Five year resubmission cycle  Testing Laboratory Laboratory Field test deck Field test deck

Laboratory Testing Neat Resin  Viscosity ASTM D2196  Gel Time ASTM C881  Flash Point ASTM D 3278  Infrared Spectroscopy AASHTO T237 Cured Resin  Tensile Strength ASTM D638  Tensile Elongation ASTM D638  Modulus of Elasticity ASTM D638  Absorption ASTM D570

Laboratory Testing Cured Resin (Filled)  Compressive strength ASTM C579  Thermal compatibility ASTM C884  Resistance to chloride ion AASHTO T259/T260 Surface Aggregate  GradationAASHTO T27  Soundness AASHTO T104  Absorption AASHTO T84/T85  Shore D hardness ASTM D2240  LA Wear test AASHTO T96  Specific Gravity AASHTO T84/T85  XRF Spectroscopy

Field Test Deck Installation  Concrete Pavement, Asphalt Pavement, and Bridge Deck  200 Foot Test Section  Surface Preparation and Installation September September  I-64 Concrete and Asphalt  I-75 over Kentucky River Evaluation  Within 30 Days, 12 Months, 24 Months, and 36 months  Photographs  Delaminated Area (%)  Bond Strength ASTM D 7234  Skid Resistance AASHTO T242

KYTC Skid Testing  Established Skid Testing Program  Quality Control 3 Year Calibration cycle 3 Year Calibration cycle Maintain 3 control sections Maintain 3 control sections

Surface Preparation  Concrete Bridge Deck and Pavement Shot Blast CSP 5 to CSP 7 Shot Blast CSP 5 to CSP 7 Vacuum Surface Debris Vacuum Surface Debris  Asphalt Pavement Air Blast 180CFM Air Blast 180CFM  Traffic Control Single Lane Closure Single Lane Closure 8pm Friday Thorough 8pm Sunday 8pm Friday Thorough 8pm Sunday

Cost Schedule  Laboratory Testing $4,000  Concrete Bridge Deck $14,000 Minimum 3 Products Minimum 3 Products  Concrete Pavement $10,000 Minimum 5 Products Minimum 5 Products  Asphalt Pavement $8,000 Minimum 5 Products Minimum 5 Products

How Can YOU Help  General input on surface preparation requirements  General input on installation equipment/processes  General input on installation time requirements

Thank You Derrick Castle, PCS Chemical and Corrosion Laboratory Specialist Kentucky Transportation Cabinet Division of Materials