U.S. Department of Transportation
Federal Highway Administration
1200 New Jersey Avenue, SE
Washington, DC 20590

Skip to content U.S. Department of Transportation/Federal Highway AdministrationU.S. Department of Transportation/Federal Highway Administration


Alkali-Silica Reactivity (ASR)

ASR Reference Center

The Reference Center was developed to provide users with access to pertinent information related to alkali-silica reactivity (ASR). The Reference Center has been organized for quick and easy access to various resources, and will be updated regularly to ensure that the most up-to-date information is available. Information that can be found on the Reference Center includes research reports, guidance documents, specifications related to ASR, field trials reports, and helpful links.

Visit the Reference Center


Workshops and webinars were conducted in 2012 and 2013 to transfer the deliverables of the ASR Development and Deployment Program. The goal was to provide State Department of Transportation (DOT) engineers and practitioners with the information and tools necessary to address ASR in their states.

Find out more about training on ASR

Reactive Solutions Newsletter

Reactive Solutions is a quarterly newsletter developed under FHWA's ASR Development and Deployment Program. Reactive Solutions will share developments of the Program, share what other States and agencies are doing to address ASR, and provide tools and information for readers to address ASR.



SAFETEA-LU Section 5203 (e) established funding for furthering the development and deployment of techniques to prevent and mitigate alkali silica reactivity. Funding was provided for $10 million over four years.

ASR Technical Working Group

An ASR Stakeholder Technical Working Group (ASR TWG) has been established to monitor program implementation and provide technical assistance to FHWA program managers. The ASR TWG will monitor the program to ensure program objectives are met. Members of the ASR TWG are representatives of FHWA, industry, academia, other federal agencies, and State Departments of Transportation.

TWG Meeting Agendas

PDF files can be viewed with the Acrobat® Reader®
Updated: 09/18/2015
Federal Highway Administration | 1200 New Jersey Avenue, SE | Washington, DC 20590 | 202-366-4000