TRB Webinar: Improved Mix Design and Materials Management Practices of Hot Mix Asphalt (HMA) with High Reclaimed Asphalt Pavement (RAP) Contents

TRB conducted a webinar on July 2, 2014, from 2:00pm to 3:30pm ET that explored NCHRP Report 752: Improved Mix Design, Evaluation, and Materials Management, Practices for Hot Mix Asphalt, with High Reclaimed Asphalt Pavement Content, which describes proposed revisions to the American Association of State Highway and Transportation Officials (AASHTO) R 35, Superpave Volumetric Design for Hot Mix Asphalt, and AASHTO M 323, Superpave Volumetric Mix Design, to accommodate the design of asphalt mixtures with high reclaimed asphalt pavement contents. A certificate for 1.5 Professional Development Hours (PDHs) was provided to attendees who registered and attended the webinar as an individual. Contact Reggie Gillum at RGillum@nas.edu for instructions on receiving a copy of the recorded webinar.


Webinar Presenter

• Randy West, National Center for Asphalt Technology

Moderated by: Ed Harrigan, Transportation Research Board


Webinar Outline

• PART 1: Background
• PART 2: Historical performance of high Reclaimed Asphalt Pavement (RAP) content mixes
• PART 3: NCHRP 9-46 objectives
• PART 4: RAP management best practices
• PART 5: Experimental plan
• PART 6: Conclusions
• PART 7: Proposed revisions to AASHTO standards
• PART 8: Ongoing and future research
• PART 9: 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.


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

• Describe different ways to express RAP contents;
• Describe historical pavement performance trends for asphalt mixtures containing RAP contents above 25 percent;
• Summarize key elements of RAP management best practices;
• Evaluate the suitability of a RAP stockpile based on variability guidelines;
• Summarize the options for determining RAP aggregate specific gravities and the limitations of each method;
• Cite how the proposed guidance for selecting the virgin asphalt binder grade differs from current guidance in AASHTO M323; and
• Identify which performance tests should be considered as part of a mix design process for different situations

 
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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. 

This webinar was developed in April 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, PO Box 1686, Clemson, SC, 29633. Website: www.RCEP.net. Content in this webinar pertains to Health, Safety, and Welfare Including Core Technical, in accordance to RCEP standards.

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.


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