ASTM C1621 PDF

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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Combining values from the two systems may result in non-conformance with the standard. Work Item s – proposed revisions of this standard. Please contact the Editor: The mold is lifted and the concrete allowed to spread.

These notes and footnotes excluding those in tables and figures shall not be considered as requirements of the standard. A difference of less than 1 in. The test method is limited to concrete with nominal maximum size of aggregate of 1 in [25 mm]. This test method is applicable for laboratory use in comparing the passing ability of different concrete mixtures.

As the voice of the U. These notes excluding those in tables and figures shall not be considered as requirements of the standard.

ASTM Test Methods for Self-Consolidating Concrete

Combining values from the two systems may result in nonconformance with the standard. Work Item s – proposed revisions of c16211 standard. The orientation of the mold for the J-Ring test and for the slump flow test without the J-Ring shall be the same. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. Please first log c621 with a verified email before subscribing to alerts.

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Link to Active This link will always route to the current Active version of the standard. Link to Active This link will always v1621 to the current Active version of the standard. The retained aggregate from each section is weighed and the static segregation calculated as the difference between the bottom and top sections divided by the average weight.

You can download and open this file to your own computer but DRM prevents opening this file on another computer, including a networked server. Warning-Fresh hydraulic cementitious mixtures are caustic and may cause chemical burns to skin and tissue upon prolonged exposure. The slump flow test can be used in production to assess the consistency of SCC. The following ASTM standard test methods have xstm developed to address these fresh concrete properties. A nonmandatory appendix of ASTM C provides a procedure for a relative measurement of flow rate, viscosity, and stability.

The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Self-consolidating concrete SCC must have the ability to flow under its own weight, to pass reinforcing bars or other obstacles without segregation, and not segregate during or after casting.

Your Alert Profile lists the documents that will be monitored. The slump flow with and without the J-Ring is measured.

ASTM C1621

A sample of freshly mixed concrete is placed in the cone in one lift asstm tamping or vibration. The flow rate is influenced by the concrete’s viscosity.

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According to ACI R, the slump flow should not differ by more than 2 in. This standard is also available to be included in Standards Subscriptions.

Proceed to Checkout Continue Shopping. Warning— Fresh hydraulic cementitious mixtures are caustic and may cause chemical burns to skin and tissue upon prolonged exposure.

The values stated in each system are not exact equivalents; therefore, each system shall be used independently of the other. Need more than one copy?

ELE International – J-Ring

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.

Warning-Fresh hydraulic cementitious mixtures are caustic and may cause chemical burns to skin and tissue upon prolonged exposure. A difference less than 25 mm [1 in. Subscription pricing is determined by: We have no amendments or corrections for this standard.

After 15 minutes, the mold is separated into three sections aatm the top, middle, and bottom of the cylinder. The slump cone can be either used the same way up or inverted. This standard does not purport to address all of the safety concerns, if any, associated with its use.

It is also applicable in the field as a quality control test. Within the text, the SI units are shown in brackets.