ASTM C1552-08a
(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
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 C 140, Practice C 617, and Test Method C 1314.
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 C 1093.
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:C1552–08a
Standard Practice for
Capping Concrete Masonry Units, Related Units and
1
Masonry Prisms for Compression Testing
This standard is issued under the fixed designation C 1552; 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
testing. The procedures are based on those contained (or
NOTE 1—The testing laboratory performing these test methods should
previously contained) in Test Methods C 140, Practice C 617,
be evaluated in accordance with Practice C 1093.
and Test Method C 1314.
1.2 The values stated in inch-pound units are to be regarded
NOTE 2—Specimens capped using this practice will vary significantly
as standard. The values given in parentheses are mathematical
in 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
1.3 This standard does not purport to address all of the
being capped.
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 CappingPlate—Ifused,thecappingplateshallbemade
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 0.003 in. in 16
2
2.1 ASTM Standards:
in.(0.075mmin400mm)andshallbefreeofgouges,grooves,
C 140 Test Methods for Sampling and Testing Concrete
and indentations greater than 0.010 in. (0.25 mm) deep or
2 2
Masonry Units and Related Units
greater than 0.05 in. (32 mm ) in surface area. At the time of
C 617 Practice for Capping Cylindrical Concrete Speci- 1
capping, the capping surface shall be level within ⁄16 in. (1.6
mens
mm) over the length of the plate.
C 1093 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
C 1209 Terminology of Concrete Masonry Units and Re-
meet the requirements of 5.2.At the time of capping, the wear
lated Units
1
plate surface shall be level within ⁄16 in. (1.6 mm) over the
C 1232 Terminology of Masonry
length of the plate. Do not use a capping wear plate with sulfur
C 1314 Test Method for Compressive Strength of Masonry
capping materials.
Prisms
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
3. Terminology
resistant to scratches and can be replaced at less cost than that required to
3.1 Terminology defined in Terminology C 1209 and Ter-
resurface the capping plate. See Fig. 1 for a schematic of capping setup
minology C 1232 shall apply for this practice.
when using gypsum cement materials.
5.2 Casting Plate—If used, the casting plate shall be of
1
1
This practice is under the jurisdiction of ASTM Committee C15 on Manufac-
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
mm). The casting plate shall be plane within 0.003 in. in 16 in.
Research.
(0.075 mm in 400 mm).
Current edition approved Nov. 1, 2008. Published November 2008. Originally
approved in 2002. Last previous edition approved in 2008 as C 1552 – 08.
2
6. Materials
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
6.1 Capping Materials:
Standards volume information, refer to the standard’s Document Summary page on
6.1.1 High Strength Gypsum Cement Capping Materials:
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.
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This document is not anASTM standard and is intended only to provide the user of anASTM 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:C1552–08 Designation: C 1552 – 08a
Standard Practice for
Capping Concrete Masonry Units, Related Units and
1
Masonry Prisms for Compression Testing
This standard is issued under the fixed designation C 1552; 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 C 1093.
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:
C 140 Test Methods for Sampling and Testing Concrete Masonry Units and Related Units
C 617 Practice for Capping Cylindrical Concrete Specimens
C 1093 Practice for Accreditation of Testing Agencies for Masonry
C 1209 Terminology of Concrete Masonry Units and Related Units
C 1232 Terminology of Masonry
C 1314 Test Method for Compressive Strength of Masonry Prisms
3. Terminology
3.1 Terminology defined in Terminology C 1209 and Terminology C 1232 shall apply for this practice.
4. Significance and Use
4.1 Thispracticedescribesproceduresforprovidingplanesurfacesonthetwobearingsurfacesofunitsandprisms.Thepurpose
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 C 140, Practice C 617, and Test Method
C 1314.
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 0.003 in. in 16 in. (0.075
mm in 400 mm) and shall be free of gouges, grooves, and indentations greater than 0.010 in. (0.25 mm) deep or greater than 0.05
2 2
1
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 isshall be placed directly on top of the capping plate and shall meet
the requirements of 5.2. Do not use a capping wear plate with sulfur capping materials. . At the time of capping, the wear plate
1
This practice is under the jurisdiction ofASTM Committee C15 on Manufactured Masonry Units and is the direct responsibility of Subcommittee C15.04 on Research.
Current edition approved JuneNov. 1, 2008. Published JulyNovember 2008. Originally approved in 2002. Last previous edition approved in 20072008 as C 1552 – 078.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. ForAnnualBookofASTMStandards
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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C 1552 – 08a
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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.
NOTE 3—Acappingwearplatehasbeenfoundtoreducethepotentialofdamagetothecappingplate.Thecappingwearplateistypicallymoreresistant
to scratches and can be replaced at less cost than that required to resurface the c
...
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