ASTM WK42435

    Revision of C856 - 11 Standard Practice for Petrographic Examination of Hardened Concrete

    (What is a Work Item?)

    Active Standard: C856 - 14

    Developed by Subcommittee: C09.65 | Committee C09 | Contact Staff Manager


    1. Rationale

    The Paste Features section 13 contains only a small section on w/c and w/cm. The subcommittee has agreed that this section should provide the petrographer with guidelines for estimation of w/c and w/cm. To achieve this goal, the section has been expanded and will be balloted as an appendix to C856.


    aggregates; air voids; alkali-silica reaction; analysis; deterioration; examination; fire effects; hardened concrete; microscopy; paste; petrographic; secondary deposits; Fire testing--building materials; Hardened concrete; Microscopic examination--concrete; Petrographic analysis; Stereomicroscopy; Visual examination--concrete; Alkali reactivity;
    Citing ASTM Standards
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    Work Item Status

    Date Initiated:

    Technical Contact:
    Laura Powers

    Draft Under Development