ASTM WK43665

    Work Item: ASTM WK43665 - Revision of C1157 / C1157M - 11 Standard Performance Specification for Hydraulic Cement

    (What is a Work Item?)

    Active Standard: C1157 / C1157M - 11

    Developed by Subcommittee: C01.10 | Committee C01 | Contact Staff Manager



    1. Rationale

    Test method C187 is required in Standard C1157 to fine the normal consistency used in the determination of VICAT set time by Test method C191 (see Table 1 and section 9.5 of C 1157). It has been observed that hydraulic cements not based on portland cement can require a longer mixing time to become uniform than the 2 min. 15 sec. mandated in test method C187. This work item is intended to establish appropriate mix time extension when conducting C187 and add to section 9.5 of C1157 a statement allowing for the extension of C187 mix time as an alternative test condition to comply with Standard C1157.


    Keywords

    blended hydraulic cement; hydraulic cement; performance; Granular blast furnace; Hydraulic cement concrete--specifications; Performance--building materials/applications (specifications); Pozzolans--specifications; Silica fume--specifications; Slag;
    Citing ASTM Standards
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    Work Item Status

    Date Initiated:
    10-14-2013

    Technical Contact:
    Frederick Kinney

    Status:
    Draft Under Development