ASTM C823/C823M-12
(Practice)Standard Practice for Examination and Sampling of Hardened Concrete in Constructions
Standard Practice for Examination and Sampling of Hardened<brk> Concrete in Constructions
SIGNIFICANCE AND USE
The examination may provide a basis for laying out in situ testing of the concrete.
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.
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.
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.
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Designation: C823/C823M − 12
Standard Practice for
Examination and Sampling of Hardened
1
Concrete in Constructions
This standard is issued under the fixed designation C823/C823M; the number immediately following the designation indicates the year
of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval.
A superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope C670 Practice for Preparing Precision and Bias Statements
for Test Methods for Construction Materials
1.1 This practice outlines procedures for visual examination
C856 Practice for Petrographic Examination of Hardened
and sampling of hardened concrete in constructions. Reference
Concrete
is made to the examination and sampling of concrete in
E105 Practice for Probability Sampling of Materials
prefabricated building units, precast products, and laboratory
E122 Practice for Calculating Sample Size to Estimate,With
specimens.
Specified Precision, the Average for a Characteristic of a
1.2 The values stated in either SI units or inch-pound units
Lot or Process
are to be regarded separately as standard. The values stated in
E141 Practice for Acceptance of Evidence Based on the
each system may not be exact equivalents; therefore, each
Results of Probability Sampling
system shall be used independently of the other. Combining
3. Terminology
values from the two systems may result in non-conformance
with the standard.
3.1 Definitions—For definitions of terms used in this
practice, refer to Terminology C125.
1.3 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
3.2 Definitions of Terms Specific to This Standard:
responsibility of the user of this standard to establish appro-
3.2.1 concrete constructions, n—any object, unit, or struc-
priate safety and health practices and determine the applica-
ture that has been built of hydraulic cement concrete.
bility of regulatory limitations prior to use.
3.2.2 category of concrete, n—a specified level of quality in
concretethatisobservedtobeinadefinablerangeofcondition
2. Referenced Documents
as a result of service or test exposure, as distinguished from
2
2.1 ASTM Standards:
concrete in the same or related constructions that is either of
C42/C42M Test Method for Obtaining and Testing Drilled
differing specified quality or of the same specified quality but
Cores and Sawed Beams of Concrete
in observably different condition at the time of examination. It
C125 Terminology Relating to Concrete and Concrete Ag-
is also used to refer to concrete having a certain attribute or
gregates
attributes. (see the Sampling Plan Section).
C215 Test Method for Fundamental Transverse,
4. Significance and Use
Longitudinal, and Torsional Resonant Frequencies of
Concrete Specimens
4.1 The examination may provide a basis for laying out in
C295 Guide for Petrographic Examination ofAggregates for
situ testing of the concrete.
Concrete
4.2 The sampling can provide materials for petrographic
C457 Test Method for Microscopical Determination of Pa-
examination, in accordance with Practice C856, chemical or
rameters of the Air-Void System in Hardened Concrete
physical analytical procedures, or any of a wide variety of
C597 Test Method for Pulse Velocity Through Concrete
destructive or nondestructive tests to determine physical,
mechanical, or structural properties of the concrete.
1
This practice is under the jurisdiction of ASTM Committee C09 on Concrete
4.3 The results of examination and sampling carried out in
and Concrete Aggregates, and is the direct responsibility of Subcommittee C09.65
accordance with this practice may be used for a variety of
on Petrography.
purposes and to serve a variety of objectives, some of which
Current edition approved April 1, 2012. Published April 2012. Originally
approved in 1975. Last previous edition approved in 2007 as C823–07. DOI:
are discussed in the Procedural Plan Section.
10.1520/C0823_C0823M-12.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or 5. Qualifications and Instruction of Personnel
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
5.1 Qualifications—The examination, formulation of sam-
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. pling plan, and the sampling procedures shall be performed by
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
C823/C823M − 12
personsqualifiedbyeducationandexperiencetocarryoutsuch to satisfactory performance or to failure; (d) to establish
work, to
...
This document is not anASTM standard and is intended only to provide the user of anASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation:C823/C823M–07 Designation:C823/C823M–12
Standard Practice for
Examination and Sampling of Hardened
1
Concrete in Constructions
This standard is issued under the fixed designation C823/C823M; the number immediately following the designation indicates the year
of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval.
A superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
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.
1.2The1.2 The values stated in either inch-poundSI units or SIinch-pound units shall are to be regarded separately as standard.
Inch-pound units are shown in parentheses. The values stated in each system may not be exact equivalents; therefore, each system
mustshall 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.
2. Referenced Documents
2
2.1 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
3. Terminology
3.1 Definitions—For definitions of terms used in this practice, refer to Terminology C125.
3.2 Definitions of Terms Specific to This Standard:
3.2.1 concrete constructions, n—any object, unit, or structure that has been built of hydraulic cement concrete.
3.2.2 category of concrete, n—a specified level of quality in concrete that is observed to be in a definable range of condition
as a result of service or test exposure, as distinguished from concrete in the same or related constructions that is either of differing
specified quality or of the same specified quality but in observably different condition at the time of examination. It is also used
to refer to concrete having a certain attribute or attributes. (see the Sampling Plan Section).
1
This practice is under the jurisdiction of ASTM Committee C09 on Concrete and Concrete Aggregates , and is the direct responsibility of Subcommittee C09.65 on
Petrography.
Current edition approved July 15, 2007. Published August 2007. Originally approved in 1975. Last previous edition approved in 2000 as C823–00. DOI:
10.1520/C0823_C0823M-07.
Current edition approved April 1, 2012. Published April 2012. Originally approved in 1975. Last previous edition approved in 2007 as C823–07. DOI:
10.1520/C0823_C0823M-12.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1
---------------------- Page: 1 ----------------------
C823/C823M–12
4. 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, me
...
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