Precision Estimates for AASHTO Test Method T 105, Determined Using CCRL Proficiency Sample Data

The objective of this study was to verify, update, and expand single-operator and multilaboratory precision estimates for the AASHTO T 105, “Standard Method of Test for Chemical Analysis of Hydraulic Cement.” Only the most recent Cement and Concrete Reference Laboratory (CCRL) proficiency cement samples that were tested according to the latest version of the test method are analyzed. This work was limited to an evaluation of the data collected from the laboratories participating in the chemical analysis of hydraulic cement for the CCRL Proficiency Sample Program. There are a total of 107 data sets analyzed and included in this report. The resulting precision estimates reflect a wide range of test values and cement types that are included in the scope of the CCRL Proficiency Sample Program.


  • English

Media Info

  • Media Type: Web
  • Edition: Contractor Final Report
  • Features: Appendices; References; Tables;
  • Pagination: 143p
  • Serial:
  • Publication flags:

    Open Access (libre)

Subject/Index Terms

Filing Info

  • Accession Number: 01139585
  • Record Type: Publication
  • ISBN: 9780309435802
  • Report/Paper Numbers: NCHRP Project 09-26A
  • Files: TRIS, TRB, ATRI
  • Created Date: Sep 17 2009 11:09AM