ASTM-C138 Historical Revision Information
Standard Test Method for Density (Unit Weight), Yield, and Air Content (Gravimetric) of Concrete

ASTM-C138 - 2007 EDITION - SUPERSEDED
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Standard Test Method for Density (Unit Weight), Yield, and Air Content (Gravimetric) of Concrete
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Scope

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

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

Note 0

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

1.3 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.

Keywords

air content; cement content; concrete; relative yield; unit weight; yield; ICS Number Code 91.100.30 (Concrete and concrete products)

To find similar documents by ASTM Volume:

04.02 (Concrete and Aggregates)

To find similar documents by classification:

91.100.30 (Concrete and concrete products Including admixtures)

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Document Number

ASTM-C138/C138M-07

Revision Level

2007 EDITION

Status

Superseded

Modification Type

Revision

Publication Date

Aug. 15, 2007

Document Type

Test Method

Page Count

4 pages

Committee Number

C09.60