ASTM C1552-23
(Practice)Standard Practice for Capping Concrete Masonry Units, Related Units and Masonry Prisms for Compression Testing
Standard Practice for Capping Concrete Masonry Units, Related Units and Masonry Prisms for Compression Testing
SIGNIFICANCE AND USE
4.1 This practice describes procedures for providing plane surfaces on the two bearing surfaces of units and prisms. The purpose of this standard is to provide consistent and standardized procedures for capping units and prisms for compression testing. The procedures are based on those contained (or previously contained) in Test Methods C140/C140M, Practice C617/C617M, and Test Method C1314.
Note 2: Specimens capped using this practice will vary significantly in size and weight. Appropriate care and handling may differ based on specimen size and weight. Provide care and handling as needed to provide for proper capping based on the physical characteristics of the specimen being capped.
SCOPE
1.1 This practice covers apparatus, materials, and procedures for capping concrete masonry units, related units, including coupons or other specimens obtained from such units, and masonry prisms for compression testing.
Note 1: The testing laboratory performing these test methods should be evaluated in accordance with Practice C1093.
1.2 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 the standard.
1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered 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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Standards Content (Sample)
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: C1552 − 23
Standard Practice for
Capping Concrete Masonry Units, Related Units and
1
Masonry Prisms for Compression Testing
This standard is issued under the fixed designation C1552; 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* C617/C617M Practice for Capping Cylindrical Concrete
Specimens
1.1 This practice covers apparatus, materials, and proce-
C1093 Practice for Accreditation of Testing Agencies for
dures for capping concrete masonry units, related units, includ-
Masonry
ing coupons or other specimens obtained from such units, and
C1232 Terminology for Masonry
masonry prisms for compression testing.
C1314 Test Method for Compressive Strength of Masonry
NOTE 1—The testing laboratory performing these test methods should
Prisms
be evaluated in accordance with Practice C1093.
1.2 The text of this standard refers to notes and footnotes
3. Terminology
that provide explanatory material. These notes and footnotes
3.1 Terminology defined in Terminology C1232 shall apply
(excluding those in tables and figures) shall not be considered
for this practice.
as requirements of the standard.
1.3 The values stated in inch-pound units are to be regarded 4. Significance and Use
as standard. The values given in parentheses are mathematical
4.1 This practice describes procedures for providing plane
conversions to SI units that are provided for information only
surfaces on the two bearing surfaces of units and prisms. The
and are not considered standard.
purpose of this standard is to provide consistent and standard-
1.4 This standard does not purport to address all of the
ized procedures for capping units and prisms for compression
safety concerns, if any, associated with its use. It is the
testing. The procedures are based on those contained (or
responsibility of the user of this standard to establish appro-
previously contained) in Test Methods C140/C140M, Practice
priate safety, health, and environmental practices and deter-
C617/C617M, and Test Method C1314.
mine the applicability of regulatory limitations prior to use. NOTE 2—Specimens capped using this practice will vary significantly in
size and weight. Appropriate care and handling may differ based on
1.5 This international standard was developed in accor-
specimen size and weight. Provide care and handling as needed to provide
dance with internationally recognized principles on standard-
for proper capping based on the physical characteristics of the specimen
ization established in the Decision on Principles for the
being capped.
Development of International Standards, Guides and Recom-
mendations issued by the World Trade Organization Technical
5. Apparatus
Barriers to Trade (TBT) Committee.
5.1 Capping Plate—If used, the capping plate shall be made
of steel having a thickness of not less than 1 in. (25.4 mm), or
2. Referenced Documents
a polished plate of granite or diabase at least 3 in. (76 mm)
2
2.1 ASTM Standards:
thick. The capping surface shall be plane within 0.002 in. in
C140/C140M Test Methods for Sampling and Testing Con-
12 in. (0.05 mm in 300 mm) and shall be free of gouges,
crete Masonry Units and Related Units
grooves, and indentations greater than 0.010 in. (0.25 mm)
2 2
deep or greater than 0.05 in. (32 mm ) in surface area. At the
1
time of capping, the capping surface shall be level within ⁄16
1
This practice is under the jurisdiction of ASTM Committee C15 on Manufac-
in. (1.6 mm) over the length of the plate.
tured Masonry Units and is the direct responsibility of Subcommittee C15.04 on
5.1.1 Capping Wear Plate—If used, the capping wear plate
Research.
shall be placed directly on top of the capping plate and shall
Current edition approved June 1, 2023. Published June 2023. Originally
approved in 2002. Last previous edition approved in 2016 as C1552 – 16. DOI: meet the requirements of 5.2. At the time of capping, the wear
10.1520/C1552-23. 1
plate surface shall be level within ⁄16 in. (1.6 mm) over the
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
length of the plate. Do not use a capping wear plate with sulfur
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
capping materials.
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. NOTE 3—A capping wear plate has been found to reduce the potential
*A Summary of Changes section appears at the end of this standard
Copyri
...
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: C1552 − 16 C1552 − 23
Standard Practice for
Capping Concrete Masonry Units, Related Units and
1
Masonry Prisms for Compression Testing
This standard is issued under the fixed designation C1552; 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 practice covers apparatus, materials, and procedures for capping concrete masonry units, related units, including coupons
or other specimens obtained from such units, and masonry prisms for compression testing.
NOTE 1—The testing laboratory performing these test methods should be evaluated in accordance with Practice C1093.
NOTE 1—The testing laboratory performing these test methods should be evaluated in accordance with Practice C1093.
1.2 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 the standard.
1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical
conversions to SI units that are provided for information only and are not considered 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 and healthsafety, 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.
2. Referenced Documents
2
2.1 ASTM Standards:
C140C140/C140M Test Methods for Sampling and Testing Concrete Masonry Units and Related Units
C617C617/C617M Practice for Capping Cylindrical Concrete Specimens
C1093 Practice for Accreditation of Testing Agencies for Masonry
C1232 Terminology for Masonry
C1314 Test Method for Compressive Strength of Masonry Prisms
3. Terminology
3.1 Terminology defined in Terminology C1232 shall apply for this practice.
1
This practice is under the jurisdiction of ASTM Committee C15 on Manufactured Masonry Units and is the direct responsibility of Subcommittee C15.04 on Research.
Current edition approved Dec. 1, 2016June 1, 2023. Published December 2016June 2023. Originally approved in 2002. Last previous edition approved in 20152016 as
C1552 – 15.C1552 – 16. DOI: 10.1520/C1552-16.10.1520/C1552-23.
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
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C1552 − 23
FIG. 1 Gypsum Capping Schematic
4. Significance and Use
4.1 This practice describes procedures for providing plane surfaces on the two bearing surfaces of units and prisms. The purpose
of this standard is to provide consistent and standardized procedures for capping units and prisms for compression testing. The
procedures are based on those contained (or previously contained) in Test Methods C140C140/C140M, Practice C617C617/
C617M, and Test Method C1314.
NOTE 2—Specimens capped using this practice will vary significantly in size and weight. Appropriate care and handling may differ based on specimen
size and weight. Provide care and handling as needed to provide for proper capping based on the physical characteristics of the specimen being capped.
5. Apparatus
5.1 Capping Plate—If used, the capping plate shall be made of steel having a thickness of not less than 1 in. (25.4 mm), or a
polished plate of granite or diabase at least 3 in. (76 mm) thick. The capping surface shall be plane within 0.002 in. in 12 in.
(0.05 mm in 300 mm) and shall be free of gouges, grooves, and indentations greater than 0.010 in. (0.25 mm) deep or greater than
2 2
1
0.05 in. (32 m
...
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