ASTM C31/C31M-23
Standard Practice for Making and Curing Concrete Test Specimens in the Field

Standard No.

ASTM C31/C31M-23

Release Date

2023

Published By

American Society for Testing and Materials (ASTM)

Status

Be replaced

Replace By

ASTM C31/C31M-24

Latest

ASTM C31/C31M-24a

Scope

1.1 This practice covers procedures for making and curing cylinder and beam specimens from representative samples of fresh concrete for a construction project. 1.2 This practice is not intended for making specimens from concrete not having measurable slump or requiring other sizes or shapes of specimens. 1.3 This practice is not applicable to lightweight insulating concrete or controlled low strength material (CLSM). NOTE 1—Test Method C495/C495M covers the preparation of specimens and the determination of the compressive strength of lightweight insulating concrete. Test Method D4832 covers procedures for the preparation, curing, transporting and testing of cylindrical test specimens of CLSM. 1.4 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard. 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. (Warning—Fresh hydraulic cementitious mixtures are caustic and may cause chemical burns to exposed skin and tissue upon prolonged exposure.2 ) 1.6 The text of this standard references notes which provide explanatory material. These notes shall not be considered as requirements of the standard. 1.7 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

ASTM C31/C31M-23 Referenced Document

• ASTM C1064/C1064M Standard Test Method for Temperature of Freshly Mixed Portland Cement Concrete
• ASTM C1077 Standard Practice for Agencies Testing Concrete and Concrete Aggregates for Use in Construction and Criteria for Testing Agency Evaluation*， 2024-01-01 Update
• ASTM C125 Standard Terminology Relating to Concrete and Concrete Aggregates
• ASTM C138/C138M Standard Test Method for Density (Unit Weight), Yield, and Air Content (Gravimetric) of Concrete*， 2023-08-01 Update
• ASTM C143/C143M Standard Test Method for Slump of Hydraulic-Cement Concrete
• ASTM C172/C172M Standard Practice for Sampling Freshly Mixed Concrete*， 2024-04-21 Update
• ASTM C173/C173M Standard Test Method for Air Content of Freshly Mixed Concrete by the Volumetric Method*， 2024-01-01 Update
• ASTM C1758/C1758M Standard Practice for Fabricating Test Specimens with Self-Consolidating Concrete*， 2023-10-01 Update
• ASTM C231/C231M Standard Test Method for Air Content of Freshly Mixed Concrete by the Pressure Method*， 2024-01-01 Update
• ASTM C330/C330M Standard Specification for Lightweight Aggregates for Structural Concrete
• ASTM C403/C403M Standard Test Method for Time of Setting of Concrete Mixtures by Penetration Resistance
• ASTM C470/C470M Standard Specification for Molds for Forming Concrete Test Cylinders Vertically
• ASTM C495/C495M Standard Test Method for Compressive Strength of Lightweight Insulating Concrete
• ASTM C511 Standard Specification for Moist Cabinets, Moist Rooms, and Water Storage Tanks Used in the Testing of Hydraulic Cements and Concretes
• ASTM C617/C617M Standard Practice for Capping Cylindrical Concrete Specimens*， 2023-10-20 Update
• ASTM C94/C94M Standard Specification for Ready-Mixed Concrete*， 2024-04-01 Update
• ASTM D4832 Standard Test Method for Preparation and Testing of Controlled Low Strength Material (CLSM) Test Cylinders

ASTM C31/C31M-23 history

• 2024 ASTM C31/C31M-24a Standard Practice for Making and Curing Concrete Test Specimens in the Field
• 2024 ASTM C31/C31M-24 Standard Practice for Making and Curing Concrete Test Specimens in the Field
• 2023 ASTM C31/C31M-23 Standard Practice for Making and Curing Concrete Test Specimens in the Field
• 2022 ASTM C31/C31M-22 Standard Practice for Making and Curing Concrete Test Specimens in the Field
• 2021 ASTM C31/C31M-21a Standard Practice for Making and Curing Concrete Test Specimens in the Field
• 2021 ASTM C31/C31M-21 Standard Practice for Making and Curing Concrete Test Specimens in the Field
• 0000 ASTM C31/C31M-20
• 2019 ASTM C31/C31M-19a Standard Practice for Making and Curing Concrete Test Specimens in the Field
• 2019 ASTM C31/C31M-19 Standard Practice for Making and Curing Concrete Test Specimens in the Field
• 2018 ASTM C31/C31M-18b Standard Practice for Making and Curing Concrete Test Specimens in the Field
• 2018 ASTM C31/C31M-18a Standard Practice for Making and Curing Concrete Test Specimens in the Field
• 2018 ASTM C31/C31M-18 Standard Practice for Making and Curing Concrete Test Specimens in the Field
• 2017 ASTM C31/C31M-17 Standard Practice for Making and Curing Concrete Test Specimens in the Field
• 2015 ASTM C31/C31M-15ae1 Standard Practice for Making and Curing Concrete Test Specimens in the Field
• 2015 ASTM C31/C31M-15a Standard Practice for Making and Curing Concrete Test Specimens in the Field
• 2015 ASTM C31/C31M-15 Standard Practice for Making and Curing Concrete Test Specimens in the Field
• 2012 ASTM C31/C31M-12 Standard Practice for Making and Curing Concrete Test Specimens in the Field
• 2010 ASTM C31/C31M-10 Standard Practice for Making and Curing Concrete Test Specimens in the Field
• 2009 ASTM C31/C31M-09 Standard Practice for Making and Curing Concrete Test Specimens in the Field
• 2008 ASTM C31/C31M-08b Standard Practice for Making and Curing Concrete Test Specimens in the Field
• 2008 ASTM C31/C31M-08a Standard Practice for Making and Curing Concrete Test Specimens in the Field
• 2008 ASTM C31/C31M-08 Standard Practice for Making and Curing Concrete Test Specimens in the Field
• 2006 ASTM C31/C31M-06 Standard Practice for Making and Curing Concrete Test Specimens in the Field
• 2003 ASTM C31/C31M-03a Standard Practice for Making and Curing Concrete Test Specimens in the Field
• 2003 ASTM C31/C31M-03 Standard Practice for Making and Curing Concrete Test Specimens in the Field
• 2000 ASTM C31/C31M-00e1 Standard Practice for Making and Curing Concrete Test Specimens in the Field
• 2000 ASTM C31/C31M-00 Standard Practice for Making and Curing Concrete Test Specimens in the Field