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WARRANTED HOT MIX ASPHALT PAVEMENTS: Development, Benefits and Risks

WARRANTED HOT MIX ASPHALT PAVEMENTS: Development, Benefits and Risks. What Warranties Are Not. Guarantee of defect free pavement Throwing away the spec book A way to get rid of DOT employees. What Warranties Are. Guarantee of good performance Incentive for quality construction

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WARRANTED HOT MIX ASPHALT PAVEMENTS: Development, Benefits and Risks

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  1. WARRANTED HOT MIXASPHALT PAVEMENTS:Development,Benefits and Risks

  2. What Warranties Are Not • Guarantee of defect free pavement • Throwing away the spec book • A way to get rid of DOT employees

  3. What Warranties Are • Guarantee of good performance • Incentive for quality construction • Incentive for innovation

  4. Incentive for Good Performance • Current Specifications written to push the contractor towards “good performance” • Warranty Specifications define what good performance is

  5. “The Contract Specifications Were Met” Definition of Success

  6. BENEFIT OF WARRANTY • Success = Performance • Non-Confrontational Construction • Innovation Rewarded

  7. Assigning Risk • “Who has control of an item?” • Contractor?then contractor assumes risk of poor performance. • Agency?then agency maintains risk of poor performance.

  8. DOT Responsibilities Structure Quantities Time Unit Cost Condition Survey

  9. Contractor Responsibilities Materials Mix Design Process Control Remediation Plans

  10. Industry Benefits • Liability • “Raises the bar” • Improves competition with pcc • Builder sets own specs • No approvals required

  11. Agency Benefits • People loss • Improves probability of good performance • Less confrontation

  12. Friction

  13. FN = 24

  14. Correlation of Friction Number to Macro-texture Depth

  15. HURDLES #1 is PEOPLE

  16. HURDLES • Agency • “What I want is a guarantee of performance • “. . . And by the way, I want to keep the specifications we have because they are a good set of specs. We have tuned them to cover all situations. • “. . . besides, I need a hammer to control poor (out-of-state) contractors.”

  17. HURDLES • Contractor • “What I want is for the agency to get out of my hair • “. . . don’t shut me down • “. . . and I want to get paid for every ton I put down.”

  18. WHAT’S IN IT • For the Agency • Performance

  19. WHAT’S IN IT • For the Contractor • Freedom in exchange for performance

  20. BENEFITS • Success = Performance • Risk Balanced • Innovation Rewarded • Non-Confrontational Construction

  21. SHORT TERM • 3 to 5 years • Focuses attention on manufacturing and placement details • Minimal opportunity for innovation

  22. LONG TERM • Shifts focus from construction • Innovative materials • Maintenance techniques

  23. WARRANTIES • Improve performance • Require change Worth it? You Decide

  24. SURE LOOKS GOOD TO ME!

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