ASTM C173/C173M-01e1

ASTM C173/C173M-01e1 - 10.3.2001

1. Scope

1.1 This test method covers determination of the air content of freshly mixed concrete containing any type of aggregate, whether it be dense, cellular, or lightweight.

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 are not exact equivalents; therefore each system must be used independently of each other. Combining values from the two units may result in nonconformance.

1.3 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.

2. Referenced Documents

C29/C29M-23	Standard Test Method for Bulk Density (“Unit Weight”) and Voids in Aggregate
C31/C31M-26b	Standard Practice for Making and Curing Concrete Test Specimens in the Field (Includes all amendments and changes 8/27/2026).
C138/C138M-24a	Standard Test Method for Density (Unit Weight), Yield, and Air Content (Gravimetric) of Concrete (Includes all amendments and changes 8/6/2024).
C143/C143M-26b	Standard Test Method for Slump of Concrete (Includes all amendments and changes 8/6/2026).
C1064/C1064M-23	Standard Test Method for Temperature of Freshly Mixed Hydraulic-Cement Concrete
C173/C173M-26	Standard Test Method for Air Content of Freshly Mixed Concrete by the Volumetric Method
C231-09	Standard Test Method for Air Content of Freshly Mixed Concrete by the Pressure Method
C670-24ae1	Standard Practice for Preparing Precision and Bias Statements for Test Methods for Construction Materials (Includes all amendments and changes 2/21/2025).
C172-08	Standard Practice for Sampling Freshly Mixed Concrete