Research Report RR:C01-1011

    There are two objectives to this report:1. Examine the trends in precision of portland cement strength test results to determine whether there has been significant change over the 40+ year period represented by CCRL portland cement samples.2. Develop revised statistical parameters for 3- and 7-day test ages for portland cement testresults using more recent CCRL data, and develop new estimates of precision for 1- and 28-day test ages.

    Pages: 17     Published: December 2011

    Delivery Format: PDF Download


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    Related Standards

    C109/C109M-13 Standard Test Method for Compressive Strength of Hydraulic Cement Mortars (Using 2-in. or [50-mm] Cube Specimens)


    Committee C01 on Cement


    Subcommittee C01.27 on Strength