Upcoming Webinar: Resilient Modulus Characterization for AASHTOWare PMED

December 15, 2025

December 16, 2025 | 1:00 p.m. – 2:30 p.m. EST

Resilient modulus is a critical input for pavement design because it quantifies the stiffness of unbound materials (like subgrade and base layers) under repeated traffic loading, which is essential for predicting pavement performance in mechanistic-empirical design. It’s used in PMED to calculate pavement responses, which are then used to predict distresses such as rutting and cracking. The value can be determined through laboratory triaxial tests (AASHTO T-307) or estimated from field tests like falling weight deflectometer (FWD) (back-calculation) or soil properties.

The learning outcomes will allow attendees to:

1. Describe resilient modulus testing and its usage in PMED.
2. Distinguish between resilient modulus usage in AASHTO 93 and PMED.
3. Explain the default resilient modulus values included in PMED.
4. Interpret resilient modulus laboratory testing results for proper application in PMED.
5. Select the proper resilient modulus inputs from laboratory testing and backcalculation for use in PMED.

Register today at: https://us02web.zoom.us/webinar/register/WN_ZxRLjHzgQkaP0bdMqZUlnw?utm_campaign=29558187-PMED%20Webinar%3A%20Resilient%20Modulus%20Characterization%20for%20AASHTOWare%20PMED&utm_source=hs_email&utm_medium=email&_hsenc=p2ANqtz-8dHATmcecl-7voOdRlQdtyWpZSgaHEpyk5eaVEpZvWl3fkERGa_4lpbQa2vQHQKWl_SbzK#/registration

The recordings of all of our webinars are available at:  https://www.youtube.com/@AASHTOWarePavementMEDesign/playlists under webinars, then click to view the list of titles.

Please submit suggestions for future webinar topics to:

Ryan Fragapane, AASHTO, rfragapane@aashto.org
Ben Sade, AASHTO, bsade@aashto.org
Hari Nair, VDOT, Chair, Harikrishnan.Nair@vdot.virginia.gov