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ACTT Workshop: Wyoming
September 21-22, 2004, DuBois, Wyoming

Appendix C (continued): Skill Set Reporting Forms

Pavements

Pavements Team
Mark Ayen-WYDOT, Cheyenne
Dale Decker-Decker LLC, Washington, DC
Earl Montgomery-WYDOT, Cheyenne
Facilitator-Kevin Powell-WYDOT, Cheyenne
Vicki Bonds-WYDOT, Cheyenne
Gerry Huber-Heritage Group, Indianapolis
Mike Schulte-WYDOT, Cheyenne
Recorder-Bruce Burrows-WYDOT, Cheyenne
Notes - Pavements Skill Set
Idea (short name) Idea (detailed description) Implementation Details (barriers, skill set coordination, etc.)
Increase asphalt thickness
  • Increase from 4 in to 6 in would add pavement life by reducing thermal cracking, helping meet goal of "perpetual pavement."
  • Smoothness specification might require three lifts instead of two, increasing cost and time needed for construction. Variations in soil types and drainage characteristics in select areas along project prevent this type of increase. Terminology (perpetual) might be confusing for public because an overlay will still be necessary.
Adjust specification for asphalt mix from supplier
  • Will the current "64-28" binder specification be sufficient to address concerns?
  • A constraint: supplier issues limit on what can be obtained. In any case, current asphalt specification is deemed to be appropriate.
Non-traditional paving methods
  • Possibilities include alternative paving schedules (including nighttime paving), A+B bidding and temperature standard waiver.
  • Need to maintain density and moisture standards.
Longitudinal joints
  • Density testing at joints. Consider use of joint sealers at time of construction.
  • Possible increase in contractor bid related to density testing requirements.
Stone matrix asphalt (SMA)
  •  
  • SMA on I-80 suffered from pumping problem. Even without problems, could it be justified due to additional cost?
Staging area locations
  • Locations to minimize impacts over old/new pavements, increase efficiency of construction activities.
  • Constraint posed by jurisdictional issues; i.e., Forest Service stewardship of public land required.
Obtaining and processing material sources
  • Let crushing and stockpiling contract, separate and in advance of actual reconstruction.
  • Sites identified so far:
  • Dunoir pit, Blackrock Creek.
  • Turpin Meadows, Fourmile Meadows, Deception Creek, and other sites should be investigated.
  • Turpin Meadow pit: small; not enough quantity for uses beyond PM aggregate.
  • Too late to let separate contract ahead of Brooks Lake job, but could add this on to the Brooks Lake contract for use on Togwotee Pass section.
  • Want to avoid having to do additional NEPA.
  • Use Blackrock and Turpin Meadow sources for west slope jobs.
Chip sealing
  • Determine most efficient timing for chip sealing.
  • Consider use of one chip seal over entire corridor instead of on a project-by-project basis, if chip sealing is deemed necessary.
Use of geogrid
  • Use geogrid to reduce thickness of base course.
  • Some controversy currently within over use of geogrid. Results from previous test section are inconclusive.
Plant mix base
  • Use of plant mix base provides construction platform; i.e., provide mobility through construction zones. Another option: stabilized base on top of drainable base.
  • Additional cost, uncertainty about drainage ability. Reduction in aggregate quantity. Second option-lot of cost for slight reduction in overall thickness?
New testing methods
  • What, if any, changes or improvements in testing technologies are available, or appropriate?
  • New methodologies need additional testing and validation. Time frame probably too short to institute changes by next spring; prospects better for subsequent projects. But, QC/QA on CB would push into evaluating new methods.
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Updated: 11/06/2013
Federal Highway Administration | 1200 New Jersey Avenue, SE | Washington, DC 20590 | 202-366-4000