ASTM C1542/C1542M-02(2010)

Standard Test Method for Measuring Length of Concrete Cores

SIGNIFICANCE AND USE
This test method provides two procedures for determining the length of a core as measured along its axis. This length is used in conjunction with length to diameter relationships, condition surveys, absorption, density and voids analysis, petrography, cement content analysis, and other applications. It does not meet requirements for determining the distance between two parallel surfaces, which represents the thickness of a structural element often used to establish compliance with design specifications as outlined by Test Method C174.
SCOPE
1.1 This test method covers the determination of the length of a core drilled from a concrete structure when the reason is other than measuring dimensional tolerances of concrete elements.
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 exact equivalents; therefore, each system shall be used independently of the other.
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.

General Information

• Status: Historical
• Publication Date: 30-Nov-2010
• ICS: 91.080.40 - Concrete structures
• Technical Committee: C09 - Concrete and Concrete Aggregates
• Drafting Committee: C09.69 - Miscellaneous Tests

Relations

• Replaces: ASTM C1542/C1542M-02 - Standard Test Method for Measuring Length of Concrete Cores
• Effective Date: 01-Dec-2010
• Replaced By: ASTM C1542/C1542M-14 - Standard Test Method for Measuring Length of Concrete Cores
• Effective Date: 01-Jul-2014
• Referred By: ASTM C1202-22e1 - Standard Test Method for Electrical Indication of Concrete’s Ability to Resist Chloride Ion Penetration
• Effective Date: 01-Dec-2010
• Referred By: ASTM C42/C42M-20 - Standard Test Method for Obtaining and Testing Drilled Cores and Sawed Beams of Concrete
• Effective Date: 01-Dec-2010

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: C1542/C1542M − 02(Reapproved 2010)
Standard Test Method for
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 of a structural element often used to establish compliance with
design specifications as outlined by Test Method C174.
1.1 This test method covers the determination of the length
of a core drilled from a concrete structure when the reason is
4. Apparatus
other than measuring dimensional tolerances of concrete ele-
ments.
4.1 Jaw Caliper, depth of jaw 65 mm [2.5 in.]. Measuring
range 0 to 300 mm [0 to 12 in.]. Accuracy to 0.03 mm [0.001
1.2 The values stated in either SI units or inch-pound units
in.].
are to be regarded separately as standard. Within the text, the
inch-pound units are shown in brackets. The values stated in
4.2 Ruler, 300 to 380 mm [12 to 15 in.] divided into 1 mm
each system are not exact equivalents; therefore, each system 1
[ ⁄16 or 0.1 in.] graduations.
shall be used independently of the other.
1.3 This standard does not purport to address all of the 5. Procedure
safety concerns, if any, associated with its use. It is the
5.1 Jaw Caliper Procedure:
responsibility of the user of this standard to establish appro-
5.1.1 Hold the specimen and place the open jaws of the
priate safety and health practices and determine the applica-
caliper midpoint between the center and edge of the specimen.
bility of regulatory limitations prior to use.
Measureandrecordthevaluetothenearest 0.25mm[0.01in.].
Rotate the specimen 90º, 180º, and 270º and repeat procedure.
2. Referenced Documents
Obtain one measurement across the center of the specimen and
2.1 ASTM Standards:
record.
C42/C42M Test Method for Obtaining and Testing Drilled
5.2 Ruler Procedure:
Cores and Sawed Beams of Concrete
C174 Test Method for Measuring Thickness of Concrete 5.2.1 Position core with finished or formed face placed
Elements Using Drilled Concrete Cores down against flat and level surface. Place ruler on flat surface
C670 Practice for Preparing Precision and Bias Statements against side of core and measure length to nearest 1 mm [ ⁄16 or
for Test Methods for Construction Materials 0.1 in.] and record. Rotate core and repeat measurements at
approximately 90º, 180º, and 270º.
3. Significance and Use
NOTE 1—This procedure does not intend to include in the length
measurement adhered pieces of material not part of the original concrete
3.1 This test method provides two procedures for determin-
mixture.
ing the length of a core as measured along its axis. This length
is used in conjunction with length to diameter relationships,
6. Report
condition surveys, absorption, density and voids analysis,
6.1 Jaw Caliper—Average five measurements and report to
petrography, cement content analysis, and other applications. It
nearest 1 mm [0.1 in.].
does not meet requirements for determining the distance
between two parallel surfaces, which represents the thickness
6.2 Ruler—Average four measurements and report to near-
est 1 mm [0.1 in.].
This test method is under the jurisdiction of ASTM Committee C09 on
7. Precision and Bias
Concrete and ConcreteAggregates and is the direct responsibility of Subcommittee
C09.69 on Miscellaneous Tests.
7.1 Precision:
Current edition approved Dec. 1, 2010. Published March 2011. Originally
7.1.1 With
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