warm mix asphalt yellowstone national park l.
Download
Skip this Video
Loading SlideShow in 5 Seconds..
Warm Mix Asphalt Yellowstone National Park PowerPoint Presentation
Download Presentation
Warm Mix Asphalt Yellowstone National Park

Loading in 2 Seconds...

play fullscreen
1 / 33

Warm Mix Asphalt Yellowstone National Park - PowerPoint PPT Presentation


  • 285 Views
  • Uploaded on

Warm Mix Asphalt Yellowstone National Park. Brad Neitzke Western Federal Lands Highway Division. Project Location. Project Location. Project Details. 11.2 Kilometers / 6.93 Miles Evaluated 2 technologies Advera Sasobit 28,400 metric tons of mix total 1/3 of the tonnage per mixture.

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'Warm Mix Asphalt Yellowstone National Park' - johana


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
warm mix asphalt yellowstone national park

Warm Mix AsphaltYellowstone National Park

Brad Neitzke

Western Federal Lands Highway Division

project details
Project Details
  • 11.2 Kilometers / 6.93 Miles
  • Evaluated 2 technologies
    • Advera
    • Sasobit
  • 28,400 metric tons of mix total
    • 1/3 of the tonnage per mixture
final mixture quantities
Final Mixture Quantities
  • 12,200 metric tons of Control Mix
  • 8,750 metric tons of Advera Mix
  • 7,450 metric tons of Sasobit Mix
mix design details
Mix Design Details
  • Hveem mix design
    • 5.3% asphalt content by mix
    • 1.0% hydrated lime added
    • 19 mm mix
    • 12.6% VMA
  • Superpave mix design
    • 75 Gyration mix
    • 5.2% asphalt content by mix
    • 12.4% VMA
paving details
Paving Details
  • Binder Type – PG 58-34
  • Placed in two 2” lifts
  • Mix Temperature ≈ 325°F
  • Placement Temperature ≈ 315°F
  • 90 minute one way haul
  • 7 vibe passes Ingersoll Rand DD-130
  • 3 finish passes Ingersoll Rand SD-77
  • Paving started August 21, 2007
advera admixture
Advera Admixture
  • Added at a rate of 0.3% by weight of mix
  • Blown in at the plant – Under binder
  • Initial mix temp ≈ 275°F
  • Eventual mix temp ≈ 250°F
  • Same roller pattern
  • Started paving August 26, 2007
sasobit admixture
Sasobit Admixture
  • Added at a rate of 1.5% by weight of binder
  • Blown in at the plant – Under binder
  • Used same port as Advera
  • Initial mix temp ≈ 275°F
  • Eventual mix temp ≈ 245°F
  • Same roller pattern
  • Started paving August 30, 2007
density comparison
Density Comparison
  • Control Mixture
    • Average = 93.2% s = 1.066
  • Advera Mixture
    • Average = 93.9% s = 1.395
  • Sasobit Mixture
    • Average = 93.4% s = 1.157
what have we learned
What Have We Learned
  • Field density achieved in all cases
  • Saved ≈ 20% in fuel at the plant
  • Temperature at plant hard to regulate
  • Mix handled similarly
  • Workers noted no handling difficulties
  • No smoke
  • Additives don’t seem to affect mix design
  • Sasobit stiffens binder
what s next
What’s Next
  • More testing by WFLHD
    • Volumetrics
    • Recovered asphalt properties
    • TSR
    • Rut (Hamburg and APA)
  • Field monitor
  • WRI testing and evaluation
  • FHWA Field Lab data / report
comments to the twg
Comments to the TWG
  • Focus on items for success
  • Good paving practices
  • Performance analysis for equal evaluation
  • Only one chance
questions

QUESTIONS????

Email: brad.neitzke@fhwa.dot.gov

360.619.7725