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    ASTM C823 / C823M - 12(2017)

    Standard Practice for Examination and Sampling of Hardened Concrete in Constructions

    Active Standard ASTM C823 / C823M | Developed by Subcommittee: C09.65

    Book of Standards Volume: 04.02

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    Significance and Use

    4.1 The examination may provide a basis for laying out in situ testing of the concrete.

    4.2 The sampling can provide materials for petrographic examination, in accordance with Practice C856, chemical or physical analytical procedures, or any of a wide variety of destructive or nondestructive tests to determine physical, mechanical, or structural properties of the concrete.

    4.3 The results of examination and sampling carried out in accordance with this practice may be used for a variety of purposes and to serve a variety of objectives, some of which are discussed in the Procedural Plan Section.

    1. Scope

    1.1 This practice outlines procedures for visual examination and sampling of hardened concrete in constructions. Reference is made to the examination and sampling of concrete in prefabricated building units, precast products, and laboratory specimens.

    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.

    1.4 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.

    2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

    ASTM Standards

    C42/C42M Test Method for Obtaining and Testing Drilled Cores and Sawed Beams of Concrete

    C125 Terminology Relating to Concrete and Concrete Aggregates

    C215 Test Method for Fundamental Transverse, Longitudinal, and Torsional Resonant Frequencies of Concrete Specimens

    C295 Guide for Petrographic Examination of Aggregates for Concrete

    C457 Test Method for Microscopical Determination of Parameters of the Air-Void System in Hardened Concrete

    C597 Test Method for Pulse Velocity Through Concrete

    C670 Practice for Preparing Precision and Bias Statements for Test Methods for Construction Materials

    C856 Practice for Petrographic Examination of Hardened Concrete

    E105 Practice for Probability Sampling of Materials

    E122 Practice for Calculating Sample Size to Estimate, With Specified Precision, the Average for a Characteristic of a Lot or Process

    E141 Practice for Acceptance of Evidence Based on the Results of Probability Sampling

    ICS Code

    ICS Number Code 91.100.30 (Concrete and concrete products)

    UNSPSC Code

    UNSPSC Code 30111500(Concrete and mortars)

    Referencing This Standard
    Link Here
    Link to Active (This link will always route to the current Active version of the standard.)

    DOI: 10.1520/C0823_C0823M-12R17

    Citation Format

    ASTM C823 / C823M-12(2017), Standard Practice for Examination and Sampling of Hardened Concrete in Constructions, ASTM International, West Conshohocken, PA, 2017, www.astm.org

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