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 test results using more recent CCRL data, and develop new estimates of precision for 1- and 28-day test ages.

    Published: December 2011

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    Related Standards

    Committee C01 on Cement

    Subcommittee C01.27 on Strength