Research Report RR:C09-1049

    An Interlaboratory Study was conducted to establish a precision statement for Test Method C231/C231M, Standard Test Method for Air Content of Freshly Mixed Concrete by the Pressure Method. The current test method contains precision information for the Type A meter only. This study was conducted to establish precision information using the Type B meter and this report outlines details of the work that was performed, participants involved, and results obtained during the study.

    Published: April 2017

      Format Pages Price  
    PDF Version 35 $65.00   ADD TO CART
    C231 + Research Report 35+ $78.00   ADD TO CART

    Related Standards


    Committee C09 on Concrete and Concrete Aggregates


    Subcommittee C09.60 on Testing Fresh Concrete