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Contractor QC

Contractor QC. Wesley Glass Kentucky Transportation Cabinet 2007 KAHC/KYTC Meeting Bowling Green/Lexington, Kentucky. Contractor QC. What is Required? 23 CFR 637. Contractor QC. Frequency Guide Schedule Identification of Location for Sampling and Testing

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Contractor QC

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  1. Contractor QC Wesley Glass Kentucky Transportation Cabinet 2007 KAHC/KYTC Meeting Bowling Green/Lexington, Kentucky

  2. Contractor QC What is Required? • 23 CFR 637

  3. Contractor QC • Frequency Guide Schedule • Identification of Location for Sampling and Testing • Specify attributes to be inspected

  4. Contractor QC Quality Control sampling & testing may be used as part of acceptance decision provided that:

  5. Contractor QC • Qualified labs & personnel • Validated by verification samples • Evaluated by an IA program • Establish a dispute resolution system

  6. Contractor QC Kentucky’s Use of Contractor’s Results for Acceptance • HMA • Soil Embankment and Subgrade • Concrete Pavement • Concrete – Structural/Non Structural • Aggregate • Striping • Bridge Coating

  7. Contractor QC • HMA – Well Established • Attributes – Volumetrics & Density • Sampling – Plant and Roadway • Lot – Four Contractor/One State • Quality Measure – Individual Value • Pay – Incentive/Disincentive

  8. Contractor QC • Soil Embankment and Subgrade– Special Note • Attributes – Density & Moisture • Sampling - Roadway • Lot – Four Contractor/One State • Quality Measure – Individual Value • Pay – Accept/Reject

  9. Contractor QC • Concrete Pavement – Special Note • Attributes – Air, Slump, Temp, & Compressive Strength • Sampling - Jobsite • Lot – Eight Contractor/One State • Quality Measure - PWL • Pay – Incentive/Disincentive

  10. Contractor QC • Concrete Structural/Non Structural – Special Note • Attributes – Air, Slump, Temp, & Compressive Strength • Sampling - Jobsite • Lot – Eight Contractor/One State • Quality Measure – Individual Value • Pay – Accept/Reject

  11. Contractor QC • Aggregate – Special Note • Attributes – Gradation, Minus 200 and Density • Sampling - Jobsite • Lot – Four Contractor/One State • Quality Measure – Individual Value • Pay – Accept/Reject

  12. Contractor QC • Striping – Special Notes • Attributes - Retroreflectivity • Sampling - Roadway • Lot – Segments (1/5 of days striping) • Quality Measure – 80% exceed required minimum • Pay - Disincentive

  13. Contractor QC • Bridge Coating – Special Note • Attributes – Profile, Test Patch, Dry Film Thickness, Visual • Sampling - Jobsite • Lot – Quality Control Points • Quality Measure - Inspection • Pay – Accept/Reject

  14. Contractor QC • On Down the Road! • Total Project QC • Special Note for Contractor Quality Assurance Program

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