ASTM C1542/C1542M-19
(Test Method)Standard Test Method for Measuring Length of Concrete Cores
Standard Test Method for Measuring Length of Concrete Cores
SIGNIFICANCE AND USE
4.1 This test method provides two procedures for determining the length of a core obtained in accordance with either Test Method C42/C42M or Test Method C1604/C1604M. This length is used in conjunction with condition surveys, density and voids analysis, and other applications.
4.2 This procedure does not intend to include in the length measurement adhered particles not part of the concrete mixture.
4.3 Test Method C174/C174M also determines the length of concrete cores using a different measuring apparatus and procedure.
Note 1: Test Method C174/C174M uses an apparatus that establishes two parallel planes a known distance apart. The length of the core is determined by calculation using the known distance between the two parallel planes and the measured distance from the upper plane to the top of the core.
SCOPE
1.1 This test method is used to determine the length of a core drilled from concrete.
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 are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined.
1.3 The text of this standard refers to notes and footnotes that provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of this standard.
1.4 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.
1.5 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.
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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.
Designation: C1542/C1542M − 19
Standard Test Method for
1
Measuring Length of Concrete Cores
This standard is issued under the fixed designation C1542/C1542M; 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 test method is used to determine the length of a
C1604/C1604M Test Method for Obtaining and Testing
core drilled from concrete.
Drilled Cores of Shotcrete
1.2 The values stated in either SI units or inch-pound units
are to be regarded separately as standard. The values stated in 3. Terminology
each system are not necessarily exact equivalents; therefore, to
3.1 Definitions:
ensure conformance with the standard, each system shall be
3.1.1 For definitions of terms used in this test method, refer
used independently of the other, and values from the two
to Terminology C125.
systems shall not be combined.
4. Significance and Use
1.3 The text of this standard refers to notes and footnotes
that provide explanatory material. These notes and footnotes
4.1 This test method provides two procedures for determin-
(excluding those in tables and figures) shall not be considered
ing the length of a core obtained in accordance with either Test
as requirements of this standard.
Method C42/C42M or Test Method C1604/C1604M. This
length is used in conjunction with condition surveys, density
1.4 This standard does not purport to address all of the
and voids analysis, and other applications.
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
4.2 This procedure does not intend to include in the length
priate safety, health, and environmental practices and deter-
measurement adhered particles not part of the concrete mix-
mine the applicability of regulatory limitations prior to use.
ture.
1.5 This international standard was developed in accor-
4.3 Test Method C174/C174M also determines the length of
dance with internationally recognized principles on standard-
concrete cores using a different measuring apparatus and
ization established in the Decision on Principles for the
procedure.
Development of International Standards, Guides and Recom-
mendations issued by the World Trade Organization Technical NOTE 1—Test Method C174/C174M uses an apparatus that establishes
two parallel planes a known distance apart. The length of the core is
Barriers to Trade (TBT) Committee.
determined by calculation using the known distance between the two
parallel planes and the measured distance from the upper plane to the top
2. Referenced Documents
of the core.
2
2.1 ASTM Standards:
5. Apparatus
C42/C42M Test Method for Obtaining and Testing Drilled
Cores and Sawed Beams of Concrete
5.1 Jaw Caliper, measuring range; 0 to 300 mm [0 to 12 in.]
C125 Terminology Relating to Concrete and Concrete Ag-
or greater. Resolution or graduations; 0.01 mm [0.001 in.] or
gregates
less. Accuracy; 60.03 mm [60.0015 in.] or better.
C174/C174M Test Method for MeasuringThickness of Con-
5.1.1 Offset points as part of caliper accessory kit to permit
crete Elements Using Drilled Concrete Cores
length measurements at points not on the core perimeter.
Minimum depth of caliper jaws with offset points attached, 64
mm [2.5 in.].
1
This test method is under the jurisdiction of ASTM Committee C09 on
5.2 Ruler, 300 mm [12 in.] or greater in length, graduated to
Concrete and ConcreteAggregates and is the direct responsibility of Subcommittee
1
C09.61 on Testing for Strength.
1mm[ ⁄16 or 0.05 in.] or less.
Current edition approved Dec. 1, 2019. Published January 2020. Originally
approved in 2002. Last previous edition approved in 2016 as C1542/C1542M – 16a.
6. Test Specimens
DOI: 10.1520/C1542_C1542M-19.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or 6.1 Cores shall be obtained in accordance with Test Method
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
C42/C42M or Test Method C1604/C1604M.
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. 6.2 Cores shall be intact and be free of any coatings.
*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
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This document is not an ASTM standard and is intended only to provide the user of an ASTM 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: C1542/C1542M − 16a C1542/C1542M − 19
Standard Test Method for
1
Measuring Length of Concrete Cores
This standard is issued under the fixed designation C1542/C1542M; 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*
1.1 This test method is used to determine the length of a core drilled from concrete.
1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. Within the text, the
inch-pound units are shown in brackets. The values stated in each system are not necessarily exact equivalents; therefore, to ensure
conformance with the standard, each system shall be used independently of the other.other, and values from the two systems shall
not be combined.
1.3 The text of this standard refers to notes and footnotes that provide explanatory material. These notes and footnotes
(excluding those in tables and figures) shall not be considered as requirements of this standard.
1.4 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 safety, health, and healthenvironmental practices and determine the
applicability of regulatory limitations prior to use.
1.5 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
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
C174/C174M Test Method for Measuring Thickness of Concrete Elements Using Drilled Concrete Cores
C670 Practice for Preparing Precision and Bias Statements for Test Methods for Construction Materials
C1604/C1604M Test Method for Obtaining and Testing Drilled Cores of Shotcrete
3. Terminology
3.1 Definitions:
3.1.1 For definitions of terms used in this test method, refer to Terminology C125.
4. Significance and Use
4.1 This test method provides two procedures for determining the length of a core obtained in accordance with either Test
Method C42/C42M or Test Method C1604/C1604M. This length is used in conjunction with condition surveys, density and voids
analysis, and other applications.
4.2 This procedure does not intend to include in the length measurement adhered particles not part of the concrete mixture.
4.3 Test Method C174/C174M also determines the length of concrete cores using a different measuring apparatus and
procedure.
NOTE 1—Test Method C174/C174M uses an apparatus that establishes two parallel planes a known distance apart. The length of the core is determined
by calculation using the known distance between the two parallel planes and the measured distance from the upper plane to the top of the core.
1
This test method is under the jurisdiction of ASTM Committee C09 on Concrete and Concrete Aggregates and is the direct responsibility of Subcommittee C09.61 on
Testing for Strength.
Current edition approved June 1, 2016Dec. 1, 2019. Published June 2016January 2020. Originally approved in 2002. Last previous edition approved in 2016 as
C1542/C1542MC1542/C1542M – 16a. – 16. DOI: 10.1520/C1542_C1542M-16A.10.1520/C1542_C1542M-19.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM 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.
*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 ----------------------
C1542/C1542M − 19
5. Apparatus
5.1 Jaw Caliper, minimum depth of jaw 65 mm [2.5 in.]. Measuring range measuring range; 0 to 300 mm [0 to 12 in.]. Accuracy
to 0.02 in.] or greater. Resolution or graduations; 0.01 mm [0.001 in.] or less. Accuracy; 60.03 mm [60.0015 in.] or better.
5.1.1 Offset points as part of caliper accessory kit to permit length measurements at points no
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