ASTM C192/C192M-16 - 1.2.2016
 
Significance and Use

3.1 This practice provides standardized requirements for preparation of materials, mixing concrete, and making and curing concrete test specimens under laboratory conditions.

3.2 If specimen preparation is controlled as stipulated herein, the specimens may be used to develop information for the following purposes:

3.2.1 Mixture proportioning for project concrete,

3.2.2 Evaluation of different mixtures and materials,

3.2.3 Correlation with nondestructive tests, and

3.2.4 Providing specimens for research purposes.

Note 1: The concrete test results for concrete specimens made and cured using this practice are widely used. They may be the basis for acceptance testing for project concrete, research evaluations, and other studies. Careful and knowledgeable handling of materials, mixing concrete, molding test specimens, and curing test specimens is necessary. Many laboratories performing this important work are independently inspected or accredited. Practice C1077 identifies and defines the duties, responsibilities, and minimum technical qualification requirements of laboratory personnel and the minimum requirements for equipment used in testing concrete and concrete aggregates.

 
1. Scope

1.1 This practice covers procedures for making and curing test specimens of concrete in the laboratory under accurate control of materials and test conditions using concrete that can be consolidated by rodding or vibration as described herein.

1.2 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.

1.3 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. (Warning—Fresh hydraulic cementitious mixtures are caustic and may cause chemical burns to exposed skin and tissue upon prolonged exposure.2)

 
2. Referenced Documents

C143/C143M-20

Standard Test Method for Slump of Hydraulic-Cement Concrete

C138/C138M-23

Standard Test Method for Density (Unit Weight), Yield, and Air Content (Gravimetric) of Concrete

C617/C617M-23

Standard Practice for Capping Cylindrical Concrete Specimens

C231/C231M-24

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

C1077-24

Standard Practice for Agencies Testing Concrete and Concrete Aggregates for Use in Construction and Criteria for Testing Agency Evaluation

C1064/C1064M-23

Standard Test Method for Temperature of Freshly Mixed Hydraulic-Cement Concrete

C173/C173M-24

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

C172/C172M-17

Standard Practice for Sampling Freshly Mixed Concrete

C128-22

Standard Test Method for Relative Density (Specific Gravity) and Absorption of Fine Aggregate

C70-20

Standard Test Method for Surface Moisture in Fine Aggregate

C127-15

Standard Test Method for Relative Density (Specific Gravity) and Absorption of Coarse Aggregate (Withdrawn 2024)

C125-21a

Standard Terminology Relating to Concrete and Concrete Aggregates (Includes all amendments and changes 10/14/2021).

C566-19

Standard Test Method for Total Evaporable Moisture Content of Aggregate by Drying

C511-21

Standard Specification for Mixing Rooms, Moist Cabinets, Moist Rooms, and Water Storage Tanks Used in the Testing of Hydraulic Cements and Concretes

C494/C494M-19e1

Standard Specification for Chemical Admixtures for Concrete (Includes all amendments and changes 8/11/2022).

C470/C470M-23

Standard Specification for Molds for Forming Concrete Test Cylinders Vertically

C403/C403M-23

Standard Test Method for Time of Setting of Concrete Mixtures by Penetration Resistance

C330/C330M-23

Standard Specification for Lightweight Aggregates for Structural Concrete