ASTM C Standard Test Method for Passing Ability for Self-Consolidating Concrete by J-Ring. Qty. Model, Description. 1, H, J-ring test set, smooth. Find the most up-to-date version of ASTM C/CM at Engineering base plate includes a return bend lip for easy carrying and includes three concentric circles etched on the base plate to centre the ring. ASTM C/ CM.

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ASTM C Standard

Within the text, the SI units are x1621 in brackets. The flow rate is determined by measuring the time it takes for the outer edge of the concrete to reach a diameter of 20 in. A difference of less than 1 in. These notes excluding those in tables and figures shall not be considered as requirements of the standard. View directory of all issues.

The flow rate is influenced by the concrete’s viscosity. Please first verify your email before subscribing to alerts.

Any opinions, findings, and conclusions or recommendations expressed in this publication are those of the Author s and do not necessarily reflect the view of the Federal Highway Administration. Your opinions and contributions are welcome. The stability ast be observed by visually examining the concrete patty for evidence of segregation. This standard is not included in any packages.

The values stated in each system are not exact equivalents; therefore, each system shall be used independently of the other. These notes and footnotes excluding those in tables and figures shall not be considered as requirements of the standard. The slump cone can be either used the same way up or inverted. 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 c16621.

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The test d1621 is suitable for use in the laboratory and ashm the field. The slump flow with and without the J-Ring is measured. Work Item s – proposed revisions of this standard.

The mold is lifted and the concrete allowed to spread. It is also applicable in the field as a quality control test. Please contact the Editor: Please first log in with a verified email before subscribing to alerts. Combining values from the two systems may result aztm nonconformance with the standard. Historical Version s – view previous versions of standard. Need more than one copy? A difference less than 25 mm [1 in.

Link to Active This link will always route to the current Active version of the asm. The test method is limited to concrete with nominal maximum size of aggregate of 1 in [25 mm]. Standards Subscriptions from ANSI provides a money-saving, multi-user solution for accessing standards.

This standard does not purport to address all of the safety concerns, if any, associated with its use. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other.

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ASTM C1621

These notes excluding those in tables and figures shall not be considered as requirements of the standard. Warning-Fresh hydraulic cementitious mixtures are caustic and may cause chemical burns to skin and tissue upon prolonged exposure. A difference greater than aztm in.

Work Item s – proposed revisions of this standard. This standard does not purport to address all of the safety concerns, if any, associated with its use. A nonmandatory asstm of ASTM C provides a procedure for a relative measurement of flow rate, viscosity, and stability. The slump flow test allows a comparison of the lateral flow and filling potential of different SCC mixtures.

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The J-Ring is placed outside the slump cone so that the concrete flows through the legs of the ring when the cone is lifted. A common range of slump flow for SCC is 18 to 30 in. After 15 minutes, the mold is separated into three sections representing the top, middle, and bottom of the cylinder.

Combining values from the two systems may result in non-conformance with the standard.

Each section is removed individually and the concrete in the top and bottom sections washed over a No. The slump flow is the average of the two diameters. According to ACI R, the slump flow should not differ by more than 2 in. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. Subscription pricing is determined by: Combining values from the two systems may result in nonconformance with the standard.

You may delete a document from your Alert Profile at any time. Already Subscribed to this document. The slump flow test can be used in production to assess the consistency of SCC. The following ASTM standard test methods have been developed to address these fresh concrete properties.