On October 28, 2009, TRB conducted a web briefing or "Webinar" that explored intrusive and non-intrusive experimental laboratory and field test methods for the estimation of stiffness properties (resilient modulus) of subgrades and unbound materials for pavement design. For more details, view a summary of this webinar. Email Reggie Gillum at RGillum@nas.edu to receive a link to the recording of this session.

There is no fee for employees of TRB sponsors to receive this recording.
Others must pay $89.00 to receive a link to view this recorded session