Research Report RR:C09-1005

    Ten laboratories tested four air entraining admixtures for specific gravity to establish a precision statement for C233. All labs, except one, submitted data in triplicate. Two labs used a pycnometer and eight labs used a hydrometer for determinations.

    Published: March 1993

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    Related Standards

    Committee C09 on Concrete and Concrete Aggregates

    Subcommittee C09.23 on Chemical Admixtures