TRB Webinar: Performance of WMA Technologies: Stage I - Moisture Susceptibility

TRB conducted a webinar on February 26, 2015, from 1:00pm to 2:30pm ET that covered all sections of NCHRP Report 763: Evaluation of the Moisture Susceptibility of WMA Technologies, which presents proposed guidelines for identifying potential moisture susceptibility in warm mix asphalt (WMA) based on coordinated laboratory and field experiments. The webinar addressed the report’s motivation, objectives, research approach, and results, as well as highlight guidelines from the associated NCHRP Project 9-49 Performance of WMA Technologies: Stage I - Moisture Susceptibility.

A certificate for 1.5 Professional Development Hours (PDHs) will be provided to attendees who register and attend the webinar as an individual. Contact Reggie Gillum at RGillum@nas.edu for instructions on receiving a copy of the recorded webinar.


Webinar Presenters

• Amy Epps Martin, Texas A&M Transportation Institute
• Edith Arambula, Texas A&M Transportation Institute

Moderated by: Ed Harrigan, Transportation Research Board


Webinar Outline

• PART 1: NCHRP Project 9-49
• PART 2: Motivation and objectives
• PART 3: Research approach
• PART 4: Results
• PART 5: Guidelines
• PART 6: Question and answer session

The first 60 minutes of the webinar will be for presentations and the final 30 minutes will be reserved for audience questions. The Registered Continuing Education Program (RCEP) categorizes this webinar activity as relating to health, safety, and welfare including core technical.


Learning Objectives
At the end of this webinar, participants will be able to:

• Compare and contrast laboratory and field performance of warm mix asphalt (WMA) and hot mix asphalt (HMA) in terms of moisture susceptibility;
• Explain how WMA and HMA moisture susceptibility evolve with time;
• Identify anti-stripping agents and other mixture components in order to minimize moisture susceptibility of WMA; and
• Apply guidelines to preclude moisture susceptibility in WMA during mix design.

Registration Information
There is no fee for employees of TRB Sponsors or TRB Sustaining Affiliates 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;
• Employees of tribal governments; and
• Members of Congress or their staff.

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 1.5 Professional Development Hours (PDHs) 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 February 2014. 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, 1015 15th Street, NW, 8th Floor, Washington, DC 20005. Website: www.RCEP.net.

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