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ASTM
C138/C138M-07 Standard Test Method for Density (Unit Weight), Yield, and Air Content (Gravimetric) of Concrete
Edition: 2007
$91.10
Unlimited Users per year
Description of ASTM-C138 2007
ASTM C138/C138M-07
Historical Standard: ASTM C138/C138M-07 Standard Test Method for Density (Unit Weight), Yield, and Air Content (Gravimetric) of Concrete
SUPERSEDED (see Active link, below)
ASTM C138 / C138M
1. 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.
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
C29/C29M Test Method for Bulk Density (Unit Weight) and Voids in Aggregate
C31/C31M Practice for Making and Curing Concrete Test Specimens in the Field
C143/C143M Test Method for Slump of Hydraulic-Cement Concrete
C150 Specification for Portland Cement
C172 Practice for Sampling Freshly Mixed Concrete
C173/C173M Test Method for Air Content of Freshly Mixed Concrete by the Volumetric Method
C188 Test Method for Density of Hydraulic Cement
C231 Test Method for Air Content of Freshly Mixed Concrete by the Pressure Method
Keywords
air content; cement content; concrete; relative yield; unit weight; yield ;
ICS Code
ICS Number Code 91.100.30 (Concrete and concrete products)
DOI: 10.1520/C0138_C0138M-07
ASTM International is a member of CrossRef.
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