Standard Historical Last Updated: Aug 16, 2017 Track Document
ASTM C231-97e1

Standard Test Method for Air Content of Freshly Mixed Concrete by the Pressure Method

Standard Test Method for Air Content of Freshly Mixed Concrete by the Pressure Method C0231-97E01 ASTM|C0231-97E01|en-US Standard Test Method for Air Content of Freshly Mixed Concrete by the Pressure Method Standard new BOS Vol. 04.02 Committee C09
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Scope

1.1 This test method covers determination of the air content of freshly mixed concrete from observation of the change in volume of concrete with a change in pressure.

1.2 This test method is intended for use with concretes and mortars made with relatively dense aggregates for which the aggregate correction factor can be satisfactorily determined by the technique described in Section 6. It is not applicable to concretes made with lightweight aggregates, air-cooled blast-furnace slag, or aggregates of high porosity. In these cases, Test Method C173 should be used. This test method is also not applicable to nonplastic concrete such as is commonly used in the manufacture of pipe and concrete masonry units.

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

1.4 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.

1.5 This standard does not purport to address all of the safety concerns, if any, 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. See Note A1.7 for a specific caution statement.

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Details
Book of Standards Volume: 04.02
Developed by Subcommittee: C09.60
Pages: 8
DOI: 10.1520/C0231-97E01
ICS Code: 91.100.30