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AASHTO - T 121M/T 121

Standard Method of Test for Density (Unit Weight), Yield, and Air Content (Gravimetric) of Concrete

active, Most Current
Organization: AASHTO
Publication Date: 1 January 2019
Status: active
Page Count: 8
scope:

This method covers determination of the density (see Note 1) of freshly mixed concrete and gives formulas for calculating the yield, cement content, and the air content of the concrete. Yield is defined as the volume of concrete produced from a mixture of known quantities of the component materials.

Nonplastic concrete, such as is commonly used in the manufacture of pipe and unit masonry, is not covered by this test method.

The values stated in either SI or inch-pound units shall be regarded separately as standard. The inch-pound units are shown in brackets. The values stated might not be exact equivalents; therefore, each system must be used independently of the other.

Note 1-Unit weight was the previous terminology used to describe the property determined by this test method, which is mass per unit volume. 

The text of this test method references notes and footnotes that provide explanatory information. These notes and footnotes (excluding those in tables) shall not be considered as requirements of this test method.

This standard may involve hazardous materials, operations, and equipment. This standard does not purport to address all of the safety concerns 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.

Warning-Fresh hydraulic cementitious mixtures are caustic and may cause chemical burns to skin and tissue upon prolonged exposure.

Document History

T 121M/T 121
January 1, 2019
Standard Method of Test for Density (Unit Weight), Yield, and Air Content (Gravimetric) of Concrete
This method covers determination of the density (see Note 1) of freshly mixed concrete and gives formulas for calculating the yield, cement content, and the air content of the concrete. Yield is...
January 1, 2017
Standard Method of Test for Density (Unit Weight), Yield, and Air Content (Gravimetric) of Concrete
This method covers determination of the density (see Note 1) of freshly mixed concrete and gives formulas for calculating the yield, cement content, and the air content of the concrete. Yield is...
January 1, 2016
Standard Method of Test for Density (Unit Weight), Yield, and Air Content (Gravimetric) of Concrete
This method covers determination of the density (see Note 1) of freshly mixed concrete and gives formulas for calculating the yield, cement content, and the air content of the concrete. Yield is...
January 1, 2015
Standard Method of Test for Density (Unit Weight), Yield, and Air Content (Gravimetric) of Concrete
This method covers determination of the density (see Note 1) of freshly mixed concrete and gives formulas for calculating the yield, cement content, and the air content of the concrete. Yield is...
January 1, 2012
Standard Method of Test for Density (Unit Weight), Yield, and Air Content (Gravimetric) of Concrete
This method covers determination of the density (see Note 1) of freshly mixed concrete and gives formulas for calculating the yield, cement content, and the air content of the concrete. Yield is...
January 1, 2011
Standard Method of Test for Density (Unit Weight), Yield, and Air Content (Gravimetric) of Concrete
This method covers determination of the density (see Note 1) of freshly mixed concrete and gives formulas for calculating the yield, cement content, and the air content of the concrete. Yield is...
January 1, 2009
Standard Method of Test for Density (Unit Weight), Yield, and Air Content (Gravimetric) of Concrete
This method covers determination of the density (see Note 1) of freshly mixed concrete and gives formulas for calculating the yield, cement content, and the air content of the concrete. Yield is...
January 1, 2005
Standard Method of Test for Density (Unit Weight), Yield, and Air Content (Gravimetric) of Concrete
This method covers determination of the density (see Note 1) of freshly mixed concrete and gives formulas for calculating the yield, cement content, and the air content of the concrete. Yield is...
January 1, 1997
Standard Method of Test for Mass per Cubic Meter (Cubic Foot), Yield, and Air Content (Gravimetric) of Concrete
A description is not available for this item.
January 1, 1997
Standard Method of Test for Mass per Cubic Meter (Cubic Foot), Yield, and Air Content (Gravimetric) of Concrete
A description is not available for this item.
January 1, 1997
Standard Specification for Mass per Cubic Meter (Cubic Foot), Yield, and Air Content (Gravimetric) of Concrete
A description is not available for this item.
January 1, 1994
Standard Specification for Mass per Cubic Meter (Cubic Foot), Yield, and Air Content (Gravimetric) of Concrete
A description is not available for this item.
January 1, 1986
Standard Method of Test for Weight per Cubic Foot, Yield, and Air Content (Gravimetric) of Concrete (ASTM C138-81 E1)
A description is not available for this item.

References

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