What do you know about national and international alkali silica reactivity (ASR) standards? TRB hosted a webinar on Thursday, October 14, 2021 from 1:00-2:30 PM Eastern that discussed how ASR standards are applied in practice. Presenters provided case studies that focused on how U.S. standards compare to those around the world and identify prevention/mitigation programs. They also discussed the aggregate approval process.

This webinar was sponsored by the Technical Standing Committee on Durability of Concrete.

The slides are linked in the meeting materials below. Click here to view the recording.

Webinar agenda and presenters

1. U.S. and international ASR standards: Michael Thomas, The University of New Brunswick
2. Pennsylvania DOT’s prevention/mitigation program: Patricia Baer, Pennsylvania DOT
3. U.S. Army Corps of Engineers prevention/mitigation program: Stephanie Wood, USACE
4. Question and answer session: Michael Praul, Federal Highway Administration

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:

1. Compare and contrast different ASR practices and specifications
2. Identify ASR practices being used by various agencies

Professional Development Hours

Professional Development Hours (PDHs) earned on completion of this program were reported to the Registered Continuing Education Program (RCEP). Certificates of Completion are issued to all participants via the RCEP.net online system. Complaints about registered providers may be addressed to RCEP, 1015 15th Street, NW, 8th Fl., Washington, DC, 20005.