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TRB Webinar: Basics of Asphalt Modeling: Part 1
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TRB Webinar: Basics of Asphalt Modeling: Part 1

TRB conducted a webinar on October 18, 2012, from 2:00 p.m.-4:00 p.m. ET that is the first in two part series that explores the basics about the mechanical behavior of asphalt concrete. Contact Reggie Gillum at RGillum@nas.edu for information on obtaining a link to the recorded webinar. Basics of Asphalt Modeling: Part 2 will be held on December 11, 2012. 

The webinar is designed for public and private sector practicing engineers and will serve as an educational short course on the topic of asphalt modeling. Download the slides.

Basics of Asphalt Modeling Part 1 from The Academies on Vimeo.

TRB conducted a webinar on October 18, 2012 that is the first in a series that explores the basics about the mechanical behavior of asphalt concrete. The webinar addresses challenges in characterization asphalt binders and mixtures; elastic versus time-dependent or viscoelastic response of materials; linear viscoelasticity and superposition principles; and, typical types of tests and terminology. The webinar is designed for public and private sector practicing engineers and will serve as an educational short course on the topic of asphalt modeling. This webinar was organized by the TRB Standing Committee on Characteristics of Asphalt Paving Mixtures to Meet Structural Requirements (AFK50).


This webinar, organized by the TRB Standing Committee on Characteristics of Asphalt Paving Mixtures to Meet Structural Requirements (AFK50), is the first part of a two part series. The second webinar, which will take place on December 11, 2012, will focus on applications of asphalt modeling to understand various asphalt distresses and design materials to prevent them.  

Webinar Presenters:
  • Eshan Dave, University of Minnesota Duluth
  • Amit Bhasin, University of Texas at Austin
Moderated by: Richard Kim, North Carolina State University


Webinar Outline:
  1. Challenges in characterization asphalt binders and mixtures
  2. Elastic versus time-dependent or viscoelastic response of materials
    • Comparison of responses from tests conducted on elastic and viscoelastic materials
    • Typical material models used for representation of power law and Prony series
    • Differences between time and frequency domain based definitions
    • Differences between linear versus and non-linear response and elastic versus plastic response
  3. Linear viscoelasticity and superposition principles
    • Linear viscoelastic response
    • Superposition principle and its applications
    • Interconversion between creep and relaxation responses
    • Example: Prediction of resilient moduli using creep data 
  4. Typical types of tests and terminology
    • Frequency sweep
    • Time sweep
    • Amplitude Sweep
    • Temperature Sweep

Learning Objectives:
  • Understand the differences in modeling of asphalt as compared to other traditional civil engineering materials
  • Develop foundation on the viscoelastic stress-strain relationships and experimental analysis to determine them
  • Learn about differences in linear and non-linear viscoelastic behavior as well as elastic and plastic behavior of asphalt materials
  • Gain knowledge on applications of linear viscoelastic material properties and use of superposition principle to solve boundary value problems
  • Learn about typical tests for viscoelastic characterization of asphalt materials

Registration information:  

There is no fee for employees of TRB sponsors who register using their work email address. In addition to employees of TRB sponsor organizations, the following are eligible to receive complimentary webinar registration:
  • TRB and National Academies employees
  • Chairs of TRB standing committees, sections, or groups
  • CRP panel members who were involved with developing the report or project that is the subject of the webinar
  • Members of the media
  • Congressional staff members
Other sites must pay $89 per site. View our pricing page for details.

After registering you will receive a confirmation email containing information about joining the webinar.


Professional Development Hour information:


A certificate for 2 Professional Development Hour (PDH) will be provided to Professional Engineers (PEs) who register and attend the webinar as an individual. For groups, only the person that registers and attends the session will receive a PDH certificate. 

Individuals registered as Florida PEs are required to email Reggie Gillum, RGillum@nas.edu, with their license number.

Please check with your licensing board to ensure that TRB webinar PDHs are approved by your board. 

This webinar was developed in April 2012. TRB has met the standards and requirements of the Registered Continuing Education Program (RCEP). Credit earned on completion of this program will be reported to RCEP by TRB. Certificates of Completion will be issued to individuals who register for and attend the entire webinar session. Complaints about registered providers may be sent to RCEP, PO Box 1686, Clemson, SC, 29633. Website: www.RCEP.net. 

Registration questions? Contact Reggie Gillum at RGillum@nas.edu.         


E-Newsletter Type: TRB News    


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