CTDOT

FHWA CONCRETE PAVEMENT TECHNOLOGY PROGRAM

WORKSHOP ON BEST PRACTICES FOR CONCRETE PAVEMENTS

Newington, Connecticut – April 29 & 30, 2009

• Assessment of Design Features
•  The Design Process - MEPDG Basics

•   PartA

•   PartB
• Introduction to Concrete Materials
Ingredients – cementitious Material, Aggregates, Admixtures
Concrete Durability – D- Cracking, ASR
Mixture Design and Mixture Proportioning
•  Testing – Fresh and Hardened Concrete

• The paving process
Equipment – Slip form pavers
Concrete Plants/Production
Concrete Placement, Finishing & Curing
Joint Sawing and Sealing
Common Early Age Failures

• Key Specification Items
Contractor Process Control (QC)
Acceptance Testing (QA)

• Dowel Alignment Testing
• Concrete Thickness Measurement
• Maturity Testing, HIPERPAVE

• Overview of Concrete Overlays
• Bonded & unbonded Overlays of Existing AC , PCC and Composite Pavements

• Joint Sealing; Partial Depth Patching; Full-Depth repairs
Retrofit Dowel Bars; Grinding; Cross-Stitching

Shiraz Tayabji

• Concrete Pavement Surface Characteristics – Issues &  Directions –
Two-Lift Construction – What & Why –
Sustainability Considerations –
• Discussion on Local Practices & Experiences