Service Life Prediction Model for AAR Affected Concrete
How can Bureau of Reclamation and US Army Corps of Engineers develop standardized test methods and models
for alkali-aggregate reaction (AAR) data to determine the lifespan of our current structures?
Need and Benefit
Around 20 structures for Reclamation have been affected by AAR. New structures have been built to replace
some of these structures do to the damage that occurs. USACE have concrete structures that are affected with
AAR. The cracking and expansion of concrete can cause it to lose its strength or can impact the function of
gates, bridges and machinery with the expansion. There are no standardized test methods or models to
implement the AAR test data to help determine the remaining structure life.
Contact the Principal Investigator for information about partners.
Bureau of Reclamation Review
The following documents were reviewed by experts in fields relating to this project's study and findings. The results were determined to be achieved using valid means.
Service Life Prediction Model for AAR Affected Concrete (final, PDF,
By Scott Keim
Publication completed on September 30, 2016