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ASTM C231-03

Historical Revision

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

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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 . 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 C 173/C 173M 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 test method 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. (Warning—Fresh hydraulic cementitious mixtures are caustic and may cause chemical burns to skin and tissue upon prolonged exposure.)


SDO ASTM: ASTM International
Document Number C231
Publication Date July 10, 2003
Language en - English
Page Count 9
Revision Level 03
Supercedes
Committee C09.60
Publish Date Document Id Type View
July 1, 2009 C0231-09A Revision
June 1, 2009 C0231-09 Revision
Oct. 1, 2008 C0231-08C Revision
June 1, 2008 C0231-08B Revision
April 15, 2008 C0231-08A Revision
Jan. 15, 2008 C0231-08 Revision
July 1, 2004 C0231-04 Revision
July 10, 2003 C0231-03 Revision
Dec. 21, 1998 C0231-97E01 Revision