AASHTO T 21 Organic Impurities in Fine Aggregates for Concrete

This video demonstrates Organic Impurities in Fine Aggregates for Concrete. This video has been provided courtesy of the Arizona Department of Transportation and Arizona Technical Testing Institute with permission for viewing on TC3's KZbin channel. Note that this video may include some state-specific verbiage; however, the content is beneficial to technical staff involved in highway operations regardless of geographic location. Anyone viewing this video should refer to their agency specifications and requirements, which they need to review and follow. For more information on available online training for technical staff in the areas of construction, maintenance, and materials, visit the AASHTO Store.