ASTM C1552-07
(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 the standard. The values given in parentheses are for information only.
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:C1552–07
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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope* 3. Terminology
1.1 This practice covers apparatus, materials, and proce- 3.1 Terminology defined in Terminology C 1209 and Ter-
dures for capping concrete masonry units, related units, includ- minology C 1232 shall apply for this practice.
ing coupons or other specimens obtained from such units, and
4. Significance and Use
masonry prisms for compression testing.
4.1 This practice describes procedures for providing plane
NOTE 1—The testing laboratory performing these test methods should
surfaces on the two bearing surfaces of units and prisms. The
be evaluated in accordance with Practice C 1093.
purpose of this standard is to provide consistent and standard-
1.2 The values stated in inch-pound units are to be regarded
ized procedures for capping units and prisms for compression
as the standard. The values given in parentheses are for
testing. The procedures are based on those contained (or
information only.
previously contained) in Test Methods C 140, Practice C 617,
1.3 This standard does not purport to address all of the
and Test Method C 1314.
safety concerns, if any, associated with its use. It is the
NOTE 2—Specimens capped using this practice will vary significantly
responsibility of the user of this standard to establish appro-
in size and weight. Appropriate care and handling may differ based on
priate safety and health practices and determine the applica-
specimen size and weight. Provide care and handling as needed to provide
bility of regulatory limitations prior to use.
for proper capping based on the physical characteristics of the specimen
being capped.
2. Referenced Documents
2
5. Apparatus
2.1 ASTM Standards:
C 140 Test Methods for Sampling and Testing Concrete
5.1 Capping Plate—If used, the capping plate shall be of
Masonry Units and Related Units
steel and have a thickness of not less than 1 in. (25.4 mm).The
C 617 Practice for Capping Cylindrical Concrete Speci-
capping surface shall be plane within 0.003 in. in 16 in. (0.075
mens
mm in 400 mm) and shall be free of gouges, grooves, and
C 1093 Practice for Accreditation of Testing Agencies for
indentations greater than 0.010 in. (0.25 mm) deep or greater
2 2
Masonry
than 0.05 in. (32 mm ) in surface area.At the time of capping,
C 1209 Terminology of Concrete Masonry Units and Re- 1
the capping surface shall be level within ⁄16 in. (1.6 mm) over
lated Units
the length of the plate.
C 1232 Terminology of Masonry
5.1.1 Capping Wear Plate—If used, the capping wear plate
C 1314 Test Method for Compressive Strength of Masonry
is placed directly on top of the capping plate and shall meet the
Prisms
requirements of 5.2. Do not use a capping wear plate with
sulfur capping materials.
NOTE 3—A capping wear plate has been found to reduce the potential
1
This practice is under the jurisdiction of ASTM Committee C15 on Manufac-
of damage to the capping plate. The capping wear plate is typically more
tured Masonry Units and is the direct responsibility of Subcommittee C15.04 on
resistant to scratches and can be replaced at less cost than that required to
Research.
resurface the capping plate.
Current edition approved Dec. 15, 2007. Published January 2008. Originally
approved in 2002. Last previous edition approved in 2003 as C 1552-03a.
5.2 Casting Plate—If used, the casting plate shall be of
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
1
transparent glass with a thickness of not less than ⁄2 in. (13
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
mm). The casting plate shall be plane within 0.003 in. in 16 in.
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. (0.075 mm in 400 mm).
*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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C1552–07
6. Materials 7. Procedure
6.1 Capping Materials:
7.1 Preparation of Specimens for Capping—Use an abra-
6.1.1 High Strength Gypsum Cement Capping Materials:
sive stone to remove loose protrusions from the surfaces of the
6.1.1.1 In addition to the compressive strength testing re-
specimens to be capped. Refer to the appropriate compression
quired in 6.2, qualification tests sha
...
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:C1552–03a Designation:C1552–07
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 (e) 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 the standard.The values given in parentheses are for information
only.
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 140Methods for Sampling and Testing Concrete Masonry Units and Related Units
C472MethodsforPhysicalTestingofGypsum,GypsumPlastersandGypsumConcrete TestMethodsforSamplingandTesting
Concrete Masonry Units and Related Units
C 617 Practice for Capping Cylindrical Concrete Specimens
C 1093 Practice for Accreditation of Testing Agencies for Unit 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 C1232 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 CappingPlate—Ifused,thecappingplateshallbeofsteelandhaveathicknessofnotlessthan1in.(25.4mm).Thecapping
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
2 2
greaterthan0.010in.(0.25mm)deeporgreaterthan0.05in. (32mm )insurfacearea.Atthetimeofcapping,thecappingsurface
1
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 is placed directly on top of the capping plate and shall meet the
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 December 1, 2003.Dec. 15, 2007. Published January 2004.2008. Originally approved in 2002. Last previous edition approved in 2003 as C
1552-03a.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. For Annual Book ofASTM 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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C1552–07
requirements of 5.2. Do not use a capping wear plate with sulfur capping materials.
NOTE3—When using gypsum cement capping materials, the placement of a single glass plate directly on top of the capping plate has been found to
reduce the potential of damage to the capping plate. The glass plate is typically more resistant to scratches and can be replaced at less cost than that
required to resurface the capping plate. The requirements for the casting plate in 5.2 have demonstrated to be sufficient for this purpose. 3—Acapping
...
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