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 Draft Status Scheduled for Ballot in November 2011
Testing Facilities KYTC – Division of Materials Field Test Deck
Sample Submission and Data Reporting Data Mine
• http://data.ntpep.org
PCO Work Plan
Manufacturers Participation Annual submission cycle Overlay submitted as a system
• Resin and Aggregate Five year resubmission cycle
Testing Laboratory 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 Gradation AASHTO
T27 Soundness AASHTO T10 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 Between June 1 and
June 30 I-64 Concrete and
Asphalt I-75 over Kentucky River
Evaluation Within 30 Days, 12
Months, and 24 Months Photographs Delaminated Area (%) Bond Strength
ASTM C 1583
Skid ResistanceAASHTO
T242
KYTC Skid Testing
Established Skid Testing Program Quality Control
3 Year Calibration cycle Maintain 3 control sections
What’s Left??
Finalize surface preparation requirements Develop e-PEF Develop DataMine module Develop Technical Committee Documents
Evaluation and Reporting time line Quality assurance program User’s Guide
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
