Subcommittee on Materials

Final reports for work recently completed in NCHRP Project 9-26A are available as the following NCHRP Web-Only Documents: 139: Precision Estimates for AASHTO Test Method T 105, Determined Using CCRL Proficiency Sample Data; 140: Precision Estimates for AASHTO Test Methods T 186, T 154, and T 22, Determined Using CCRL Proficiency Sample Data; and 141: Precision Estimates for AASHTO T 104, Determined Using AMRL Proficiency Sample Data. Links to the reports can be found at this URL: http://144.171.11.40/cmsfeed/TRBNetProjectDisplay.asp?ProjectID=1558.