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Presents. Stantec Meeting. Agenda. Topic Duration Presenter Participant Introduction 5 Min Foster DiFiore (DiFiore Group) What is Foamed Asphalt? 15 Min Tim Kowalski What are its physical characteristics (Wirtgen America) Expansion ratio Half life Optimization

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Presents

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Presentation Transcript

  1. Presents

  2. Stantec Meeting

  3. Agenda Topic DurationPresenter Participant Introduction 5 Min Foster DiFiore (DiFiore Group) • What is Foamed Asphalt? 15 Min Tim Kowalski • What are its physical characteristics (Wirtgen America) • Expansion ratio • Half life • Optimization • Foam mix design process • Uses of Foamed Asphalt 15 Min Tim Kowalski • Cold In Place Recycling • Full Depth • Plant Produced • Job Specific Plant Produced illustrations (Web Driven) 18 Min Dave Galeazzo • Lake Road Video Foster DiFiore • Job Reports • Lake Road • Bernard's Grove • Sweden Town Park • Webster Schools • Xerox Re • Testing QA/QC considerations 15 Min Greg Samios (EDP) • Marshall mix consideration • Layer coefficients • Typical sections • Questions/Discussions 20 Min All

  4. What is Foamed Asphalt?

  5. What are its Physical Characteristics

  6. Sieve Size (mm 0.075 0.015 0.300 0.600 1.18 2.36 4.75 9.5 12.5 19.0 25.0 37.5 50.0 % Passing 5.5 7.9 11.5 18.5 27.1 41.2 62.8 79.0 84.2 93.3 99.4 100.0 100.0 Foam Mix Design Process

  7. Foamed Asphalt Process • In-Situ

  8. Foamed Asphalt Process • Cold In Place Recycling

  9. Foamed Asphalt Process • Plant Produced – KMA 200

  10. Quality Control • Plant Produced KMA-200 • Consistency and Performance

  11. QA/QC Overview • Testing QA/QC considerations • Structural layer coefficients • Typical sections

  12. QA/QC Fieldwork • Verification of application rates • Sample treated materials • Cast briquettes at varying densities using Marshall hammer • 3 briquettes at 50 blows per side • 3 briquettes at 75 blows per side • 3 briquettes at 112 blows per side • Measure briquettes for wet density • Complete density testing of reclaimed pavement using heavy-duty Marshall density, i.e. 75 blows per side

  13. QA/QC Fieldwork cont. • Moisture content testing • Completed at plant location • Completed during placement • Verification of placement depths

  14. QA/QC Follow-up Testing • Briquettes are cured using same methods as completed during the mix design • Strength testing completed for • Dry ITS • Soaked ITS • Soaked stability and flow

  15. QA/QC Follow-up Testing • Develop polynomial trend lines using strength and field wet density values • Estimate in-place strength of SBC at each compaction test location • Dry ITS • Soaked ITS • Stability

  16. QA/QC Structural Layer Coefficients

  17. Questions / Discussion ?

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