TRB Webinar: Asphalt Content of Recycled Mixes by Ignition Testing

This webinar was posted on 01/26/2024

Register for this webinar

February 28, 2024 11:00 AM - 12:30 PM U.S. Eastern
Cost (for your seat)
Professional Development Hours for this webinar
1.50 hour(s)
Continuing Education Hours for this webinar
AAE: 0.00 hour(s)
AICP: 0.00 hour(s)
CLE: 0.00 hour(s)

Determining accurate asphalt content of mixtures is critical, particularly as the quantity of recycled materials allowed during production increases. TRB will host a webinar on Wednesday, February 28, 2024 from 11:00 AM to 12:30 AM Eastern that will present the work conducted by NCHRP to revise the current AASHTO T 308 test procedure to be able to incorporate mixes with high recycled materials content. Presenters will explore the effect of reducing the test temperature from 1,000 degrees Fahrenheit to 800 degrees Fahrenheit. Presenters will also share a new precision statement of the AASHTO procedure including recycle mixes.
This webinar is based on NCHRP Research Report 1060: Ignition Furnace Correction Factors: Identifying Influences and Minimizing Variability.
This webinar is sponsored by TRB’s National Cooperative Highway Research Program.
Registration is free for employees of TRB sponsors as well as Titanium and Cobalt Global Affiliates. The registration rate for all other attendees is $100. Sign into to view registration information. Contact Patrice Davenport to inquire about becoming a TRB sponsor or global affiliate organization.
A recording will be sent to all registrants after the webinar.
Webinar agenda and presenters

  • Limitations of AASHTO T 308 – Ray Brown, National Center for Asphalt Technology
  • Report summary – Carolina Rodezno, National Center for Asphalt Technology at Auburn University
  • Question and answer session moderated by Roberto Barcena, Transportation Research Board

The first 60 minutes of the webinar will be for presentations and the final 30 minutes will be reserved for audience questions.
Learning Objectives
At the end of this webinar, participants will be able to:

  • Identify the current limitation of AASHTO T 308 for asphalt content determination of mixes with high recycled materials
  • Make modifications to AASHTO T 308 procedure for more accurate asphalt content determination
  • Apply the revised precision statement of AASHTO T 308

Professional Development Hours
Professional engineers (PEs) who register and attend the entire webinar as an individual will be awarded 1.5 Professional Development Hours (PDHs). TRB’s webinar program awards PDH credits only to the registered individual, and not to other members of a group that view the webinar together. To be eligible for the credits, individuals must remain signed in for the entire webinar, including for any question and answer session following the presentations.
This webinar will be delivered as a scheduled – e-learning live event and is categorized within RCEP as Technical, Health and Safety.
Please check with your licensing board to ensure that TRB webinar PDHs are approved by your board.
TRB will report credits earned to the Registered Continuing Education Program (RCEP). Complaints about registered providers may be sent to RCEP, 1015 15th Street, NW, 8th Floor, Washington, D.C., 20005.
Pre-registration is required. Once the webinar starts, you will be unable to register. Individuals that are registered for a webinar but do not receive their confirmation emails due to their organization’s internal firewalls should contact TRB Helpdesk for assistance in signing in.
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Registration questions? Contact TRB webinar program.