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WARRANTED HOT MIX ASPHALT PAVEMENTS: Development, Benefits and Risks

This document examines the roles of warranties in hot mix asphalt pavements, highlighting their development, benefits, and associated risks. It distinguishes between performance guarantees and defect-free assurances while discussing the motivations for implementing warranties, such as incentivizing quality construction and fostering innovation. It addresses the responsibilities of both agencies and contractors, the impact on performance, and common hurdles faced in warranty adoption. Ultimately, it presents a balanced view of how warranties can lead to improved construction outcomes and performance accountability.

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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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