ASTM WK47062

    Revision of C1790 - 14 Standard Specification for Fly Ash Facing Brick

    (What is a Work Item?)

    Active Standard: C1790 - 14a

    Developed by Subcommittee: C15.03 | Committee C15 | Contact Staff Manager


    1. Rationale

    The current permissible variation in dimensions for fly ash brick is 1/16 inch. Fly ash brick are manufactured on the same equipment used to manufacture concrete block (covered under ASTM C90) and concrete brick (covered under ASTM C1634 and C55). The permissible variation in dimensions for these concrete units is 1/8 inch. This ballot item proposes to change the permissible variation in dimensions to fly ash brick to 1/8 inch so that it is consistent with the requirements of other units made on the same equipment.


    absorption; brick; compressive strength; durability; fly ash; fly ash brick; fly ash facing brick; fly ash masonry units; freeze thaw; linear drying shrinkage;
    Citing ASTM Standards
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    Work Item Status

    Date Initiated:

    Technical Contact:
    Julie Rapoport


    C15 (14-02)

    Ballot Item Approved as C1790-2014A and Pending Publication