ASTM C1621 / C1621M - 09b

    Standard Test Method for Passing Ability of Self-Consolidating Concrete by J-Ring

    Active Standard ASTM C1621 / C1621M | Developed by Subcommittee: C09.47

    Book of Standards Volume: 04.02


      Format Pages Price  
    PDF Version 5 $42.00   ADD TO CART
    Print Version 5 $42.00   ADD TO CART
    Standard + Redline PDF Bundle 10 $50.40   ADD TO CART


    Significance and Use

    This test method provides a procedure to determine the passing ability of self-consolidating concrete. This test method is applicable for laboratory use in comparing the passing ability of different concrete mixtures. It is also applicable in the field as a quality control test.

    The difference between the slump flow and J-Ring flow is an indication of the passing ability of the concrete. A difference less than 25 mm [1 in.] indicates good passing ability and a difference greater than 50 mm [2 in.] indicates poor passing ability. The orientation of the mold for the J-Ring test and for the slump flow test without the J-Ring shall be the same.

    This test method is limited to self-consolidating concrete with nominal maximum size of aggregate of up to 25 mm [1 in.].

    1. Scope

    1.1 This test method covers determination of the passing ability of self-consolidating concrete by using the J-Ring in combination with a mold.

    1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.

    1.3 The text of this standard references notes and footnotes that provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of the standard.

    1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. (WarningFresh hydraulic cementitious mixtures are caustic and may cause chemical burns to skin and tissue upon prolonged exposure. )


    2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

    ASTM Standards

    C125 Terminology Relating to Concrete and Concrete Aggregates

    C143/C143M Test Method for Slump of Hydraulic-Cement Concrete

    C172 Practice for Sampling Freshly Mixed Concrete

    C173/C173M Test Method for Air Content of Freshly Mixed Concrete by the Volumetric Method

    C1611/C1611M Test Method for Slump Flow of Self-Consolidating Concrete


    ICS Code

    ICS Number Code 91.100.30 (Concrete and concrete products)

    UNSPSC Code

    UNSPSC Code 30111500(Concrete and mortars)


    DOI: 10.1520/C1621_C1621M-09B

    ASTM International is a member of CrossRef.

    ASTM C1621 / C1621M

    Citing ASTM Standards
    Back to Top