ASTM C823/C823M-07
(Practice)Standard Practice for Examination and Sampling of Hardened Concrete in Constructions
Standard Practice for Examination and Sampling of Hardened 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 C 856, 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 inch-pound units or SI units shall 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 must be used independently of the other. Combining values from the two systems may result in nonconformance with the standard.
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.
General Information
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Standards Content (Sample)
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Designation:C823/C823M–07
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* C295 Guide for Petrographic Examination of Aggregates
for Concrete
1.1 This practice outlines procedures for visual examination
C457 Test Method for Microscopical Determination of
and sampling of hardened concrete in constructions. Reference
Parameters of the Air-Void System in Hardened Concrete
is made to the examination and sampling of concrete in
C597 Test Method for Pulse Velocity Through Concrete
prefabricated building units, precast products, and laboratory
C670 Practice for Preparing Precision and Bias Statements
specimens.
for Test Methods for Construction Materials
1.2 The values stated in either inch-pound units or SI units
C856 Practice for Petrographic Examination of Hardened
shall be regarded separately as standard. Inch-pound units are
Concrete
shown in parentheses. The values stated in each system may
E105 Practice for Probability Sampling Of Materials
not be exact equivalents; therefore, each system must be used
E122 Practice for Calculating Sample Size to Estimate,
independently of the other. Combining values from the two
With Specified Precision, the Average for a Characteristic
systems may result in nonconformance with the standard.
of a Lot or Process
1.3 This standard does not purport to address all of the
E141 Practice for Acceptance of Evidence Based on the
safety concerns, if any, associated with its use. It is the
Results of Probability Sampling
responsibility of the user of this standard to establish appro-
priate safety and health practices and determine the applica-
3. Terminology
bility of regulatory limitations prior to use.
3.1 Definitions—For definitions of terms used in this prac-
2. Referenced Documents tice, refer to Terminology C125.
2 3.2 Definitions of Terms Specific to This Standard:
2.1 ASTM Standards:
3.2.1 concrete constructions, n—any object, unit, or struc-
C42/C42M Test Method for Obtaining and Testing Drilled
ture that has been built of hydraulic cement concrete.
Cores and Sawed Beams of Concrete
3.2.2 category of concrete, n—a specified level of quality in
C125 Terminology Relating to Concrete and Concrete Ag-
concretethatisobservedtobeinadefinablerangeofcondition
gregates
as a result of service or test exposure, as distinguished from
C215 Test Method for Fundamental Transverse, Longitudi-
concrete in the same or related constructions that is either of
nal, and Torsional Resonant Frequencies of Concrete
differing specified quality or of the same specified quality but
Specimens
in observably different condition at the time of examination. It
is also used to refer to concrete having a certain attribute or
1
This practice is under the jurisdiction of ASTM Committee C09 on Concrete
attributes. (see the Sampling Plan Section).
and ConcreteAggregates , and is the direct responsibility of Subcommittee C09.65
on Petrography.
4. Significance and Use
Current edition approved July 15, 2007. Published August 2007. Originally
4.1 The examination may provide a basis for laying out in
approved in 1975. Last previous edition approved in 2000 as C823 – 00. DOI:
10.1520/C0823_C0823M-07.
situ testing of the concrete.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
4.2 The sampling can provide materials for petrographic
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
examination, in accordance with Practice C856, chemical or
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. physical analytical procedures, or any of a wide variety of
*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.
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C823/C823M–07
destructive or nondestructive tests to determine physical, the investigation. The budget and time schedule can be
mechanical, or structural properties of the concrete. modified following preliminary investigations and adjusted
4.3 The results of examination and sampling carried out in periodically as information accumulates.
accordance with this practice may be used for a variety of 6.2 Purpose—Investigations of the condition of concrete in
purposes and to serve a variety of objectives, some
...
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