ASTM WK44926

    Revision of C270 - 12a Standard Specification for Mortar for Unit Masonry

    (What is a Work Item?)

    Active Standard: C270 - 14

    Developed by Subcommittee: C12.03 | Committee C12 | Contact Staff Manager


    1. Rationale

    It was reported to the Task Group that, contrary to paragraph 3.1 of C270, the improper use of Specification C270 Property Specifications requirements to evaluate construction site-produced mortars continues. Consequently, it was felt by the Task Group that moving paragraph 3.1 of C270 from the specifications limitations section into to the Scope will better clarify the requirements of C270 on this matter. The paragraphs in Sections 1 and 3 were renumbered accordingly.


    air content; compressive strength; masonry; masonry cement; mortar; portland cement-lime; water retention; water retentivity;
    Citing ASTM Standards
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    Work Item Status

    Date Initiated:

    Technical Contact:
    Ian Chin


    C12 (14-01)

    Ballot Item Approved as C270-2014 and Pending Publication