Tack coat specifications can promote long-term pavement performance and reduce issues like slippage and delamination between layers. TRB will host a webinar on Tuesday, December 17, 2024 from 1:00 PM to 2:30 PM Eastern that provided an overview of NCHRP Web-Only Document 381: Developing Laboratory Methods and Specification Language to Test Tack Coat Materials, highlighting key findings from the study, including recommended changes to tack coat material specifications. Presenters covered the evaluation plan for tack coat materials and a field experiment designed to validate the proposed specifications.
This webinar was sponsored by TRB’s National Cooperative Highway Research Program and the Standing Technical Committees on Production and Use of Asphalt Mixtures and Asphalt Pavement Construction and Rehabilitation.
The slides are available. Please contact trbwebinar@nas.edu for a link to the recording. There may be a $90 fee.
 
Webinar agenda and presenters

• Background, objective, and research approach for tack coat study – Adam Hand, University of Nevada, Reno
• Overview of experimental plan and findings – Rita Nasr, University of Nevada, Reno
• Proposed changes to tack coat specifications and field evaluation plan – Codrin Daranga, Ergon Asphalt & Emulsions, Inc.
• Question and answer session moderated by Sam Cooper III, Louisiana Transportation Research Center

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

• Understand the basis and the proposed language changes for the tack coat material specifications
• Evaluate the newly proposed changes for tack coat specifications

 
Professional Development Hours
This webinar was delivered as a scheduled – e-learning live event and is categorized within RCEP as Technical, Health and Safety.
Professional Development Hours (PDHs) earned on completion of this program were reported to the Registered Continuing Education Program (RCEP). Certificates of Completion are issued to all participants via the RCEP.net online system. Complaints about registered providers may be addressed to RCEP, 1015 15th Street, NW, 8th Fl., Washington, DC, 20005.