ASTM C1552-15
(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, Practice C617, 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 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.
1.3 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: C1552 − 15
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* 4. Significance and Use
1.1 This practice covers apparatus, materials, and proce- 4.1 This practice describes procedures for providing plane
dures for capping concrete masonry units, related units, includ- surfaces on the two bearing surfaces of units and prisms. The
ing coupons or other specimens obtained from such units, and purpose of this standard is to provide consistent and standard-
masonry prisms for compression testing. ized procedures for capping units and prisms for compression
NOTE 1—The testing laboratory performing these test methods should
testing. The procedures are based on those contained (or
be evaluated in accordance with Practice C1093.
previously contained) in Test Methods C140, Practice C617,
1.2 The values stated in inch-pound units are to be regarded and Test Method C1314.
NOTE2—Specimenscappedusingthispracticewillvarysignificantlyin
as standard. The values given in parentheses are mathematical
size and weight. Appropriate care and handling may differ based on
conversions to SI units that are provided for information only
specimen size and weight. Provide care and handling as needed to provide
and are not considered standard.
for proper capping based on the physical characteristics of the specimen
being capped.
1.3 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
5. Apparatus
responsibility of the user of this standard to establish appro-
priate safety and health practices and determine the applica-
5.1 Capping Plate—If used, the capping plate shall be made
bility of regulatory limitations prior to use.
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)
2. Referenced Documents
thick. The capping surface shall be plane within 0.002 in. in
2
12 in. (0.05 mm in 300 mm) and shall be free of gouges,
2.1 ASTM Standards:
grooves, and indentations greater than 0.010 in. (0.25 mm)
C140 Test Methods for Sampling and Testing Concrete
2 2
deep or greater than 0.05 in. (32 mm ) in surface area. At the
Masonry Units and Related Units
1
time of capping, the capping surface shall be level within ⁄16
C617 Practice for Capping Cylindrical Concrete Specimens
in. (1.6 mm) over the length of the plate.
C1093 Practice for Accreditation of Testing Agencies for
5.1.1 Capping Wear Plate—If used, the capping wear plate
Masonry
shall be placed directly on top of the capping plate and shall
C1232 Terminology of Masonry
meet the requirements of 5.2.At the time of capping, the wear
C1314 Test Method for Compressive Strength of Masonry
1
plate surface shall be level within ⁄16 in. (1.6 mm) over the
Prisms
length of the plate. Do not use a capping wear plate with sulfur
capping materials.
3. Terminology
NOTE 3—A capping wear plate has been found to reduce the potential
3.1 Terminology defined in Terminology C1232 shall apply
of damage to the capping plate. The capping wear plate is typically more
for this practice.
resistant to scratches and can be replaced at less cost than that required to
resurface the capping plate. See Fig. 1 for a schematic of capping setup
when using gypsum cement materials.
5.2 Casting Plate—If used, the casting plate shall be of
1
This practice is under the jurisdiction of ASTM Committee C15 on Manufac-
1
transparent glass with a thickness of not less than ⁄2 in. (13
tured Masonry Units and is the direct responsibility of Subcommittee C15.04 on
Research.
mm). The casting plate shall be plane within 0.002 in. in 12 in.
Current edition approved Dec. 1, 2015. Published January 2016. Originally
(0.05 mm in 300 mm).
approved in 2002. Last previous edition approved in 2014 as C1552 – 14a. DOI:
10.1520/C1552-15.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or 6. Materials
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
6.1 Capping Materials:
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. 6.1.1 High Strength Gypsum Cement Capping Materials:
*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 ----------------------
C1552 − 15
FIG. 1 Gypsum
...
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 − 14a C1552 − 15
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.
1.2 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.
1.3 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:
C140 Test Methods for Sampling and Testing Concrete Masonry Units and Related Units
C617 Practice for Capping Cylindrical Concrete Specimens
C1093 Practice for Accreditation of Testing Agencies for Masonry
C1232 Terminology of Masonry
C1314 Test Method for Compressive Strength of Masonry Prisms
3. Terminology
3.1 Terminology defined in Terminology C1232 shall apply for this practice.
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 C140, Practice C617, 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 mm ) in surface area. At the time of capping, the capping surface shall be level within ⁄16 in. (1.6 mm) over the length
of the plate.
5.1.1 Capping Wear Plate—If used, the capping wear plate shall be placed directly on top of the capping plate and shall meet
1
the requirements of 5.2. At the time of capping, the wear plate surface shall be level within ⁄16 in. (1.6 mm) over the length of
the plate. Do not use a capping wear plate with sulfur capping materials.
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, 2014Dec. 1, 2015. Published December 2014January 2016. Originally approved in 2002. Last previous edition approved in 2014 as
C1552 – 14.C1552 – 14a. DOI: 10.1520/C1552-14A.10.1520/C1552-15.
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 ----------------------
C1552 − 15
FIG. 1 Gypsum Capping Schematic
NOTE 3—A capping wear plate has been found to reduce the potential of damage to the capping plate. The capping wear plate is typically more resistant
to scratches and can be replaced at less cost than that required to resurface the capping plate. See Fig. 1 for a
...
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