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TRB Webinar: Construction, Quality Control & Performance of Unbound Granular Layers


Date(s)
November 15, 2016 01:00 PM - 02:30 PM U.S. Eastern
Cost (for your seat)
$95.00
Professional Development Hours for this webinar
1.50 hour(s)
Continuing Education Hours for this webinar
AAE: 0.00 hour(s)
AICP: 0.00 hour(s)
CLE: 0.00 hour(s)
Details
TRB conducted a webinar on Tuesday, November 15, 2016 from 1:00PM to 2:30PM ET on material from Chapter 5 of National Cooperative Highway Research Program (NCHRP) Synthesis 445: Practices for Unbound Aggregate Pavement Layers. This webinar demonstrated how natural mineral aggregate and recycled/by-product aggregate, as used in granular base and subbase, is successfully compacted to form pavement layers. The presenters focused on connecting laboratory and site assessment practices to the rapidly advancing techniques of intelligent compaction and continuous compaction control. The presenters also explained how quality assurance is achieved and field performance is evaluated.

This webinar was organized by the TRB Standing Committee on Mineral Aggregates, and supplements a webinar conducted on June 24, 2015. 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.

Here are the slides

Webinar Presenters
  • Rick Boudreau, Boudreau Engineering
  • Debakanta Mishra, Boise State University
  • George Chang, Transtec Group
Moderated by: Andrew Dawson, University of Nottingham

Webinar Outline
  1. Introduction
    • Granular base/subbase defined
    • NCHRP Synthesis 445
  2. Review of granular base/subbase construction practices
    • Composition
    • Segregation and degradation
    • Spreading
  3. Granular base/sub-base compaction in the laboratory and the field
    • Principles
    • Compaction and testing of laboratory samples
    • Field compaction
    • Comparison between laboratory and field
    • Quality control and quality assurance
    • Field performance evaluations of constructed unbound aggregate base/subbase layers
  4. Continuous and intelligent compaction of granular bases/subbases
    • Equipment principles
    • Continuous compaction control
    • Intelligent compaction control
    • Experience
  5. Summary and conclusion
  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:
  • Identify the ways in which aggregate is placed in a pavement
  • Understand the best practice in quality control and quality assurance methods for unbound granular pavement layers
  • Identify current and future ways of evaluating constructed unbound granular layers and of ways of characterizing these evaluations in fundamental engineering terms
  • Describe the use of continuous compaction control and intelligent compaction
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 $95 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 no longer required to email TRB with your license number to report your attendance. Instead, please use your certificate that TRB provides through RCEP.net as verification of your attendance to the Florida Board of Professional Engineers.

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

This webinar was developed in March 2016. 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.