ASTM C73-14
(Specification)Standard Specification for Calcium Silicate Brick (Sand-Lime Brick)
Standard Specification for Calcium Silicate Brick (Sand-Lime Brick)
ABSTRACT
This specification covers brick made principally from sand and lime and intended for use in brick masonry. Two grades of brick are covered: grade SW - brick intended for use where exposed to temperature below freezing in the presence of moisture, grade MW - brick intended for use where exposed to temperature below freezing but unlikely to be saturated with eater. The brick shall conform to the physical requirements for the grade specified, as prescribed. All units shall be sound and free of cracks or other defects that interfere with the proper placement of the unit or significantly impair the strength or permanence of the construction.
SCOPE
1.1 This specification covers brick made principally from sand and lime and intended for use in brick masonry. Two grades of brick are covered:
1.1.1 Grade SW—Brick intended for use where exposed to temperature below freezing in the presence of moisture.
Note 1: As a typical example, brick used for foundation courses and parapets in the northeastern quarter of the United States should conform to Grade SW.
1.1.2 Grade MW—Brick intended for use where exposed to temperature below freezing but unlikely to be saturated with water.
Note 2: As a typical example, brick exposed in the face of the wall other than parapet or foundations, or brick intended for structures located in regions of the United States characterized by less severe frost action or by drier climate than is found in the northeastern quarter of the United States should conform to Grade MW.
1.1.3 When the term brick is used in this specification, it is understood to mean brick or solid masonry units.
1.2 If brick having a particular color, texture, finish, or uniformity is desired, these features shall be specified separately by the purchaser.
1.3 The text of this standard references notes and footnotes which provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of the standard.
1.4 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.
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Designation:C73 −14
Standard Specification for
Calcium Silicate Brick (Sand-Lime Brick)
This standard is issued under the fixed designation C73; the number immediately following the designation indicates the year of original
adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.Asuperscript
epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope* 2. Referenced Documents
1.1 This specification covers brick made principally from 2.1 ASTM Standards:
sand and lime and intended for use in brick masonry. Two C140 Test Methods for Sampling and Testing Concrete
grades of brick are covered: Masonry Units and Related Units
1.1.1 Grade SW—Brick intended for use where exposed to C1232 Terminology of Masonry
temperature below freezing in the presence of moisture.
3. Terminology
NOTE 1—As a typical example, brick used for foundation courses and
3.1 Terminology defined in Terminology C1232 shall apply
parapets in the northeastern quarter of the United States should conform
for this specification.
to Grade SW.
1.1.2 Grade MW—Brick intended for use where exposed to
4. Physical Requirements
temperature below freezing but unlikely to be saturated with
4.1 The brick shall conform to the physical requirements for
water.
the grade specified, as prescribed in Table 1.
NOTE 2—As a typical example, brick exposed in the face of the wall
4.2 Unless otherwise specified by the purchaser, brick of
other than parapet or foundations, or brick intended for structures located
Grades SW and MW shall be accepted. Grade SW shall be
in regions of the United States characterized by less severe frost action or
by drier climate than is found in the northeastern quarter of the United accepted in lieu of Grade MW.
States should conform to Grade MW.
5. Dimensions and Permissible Variations
1.1.3 When the term brick is used in this specification, it is
understood to mean brick or solid masonry units. 5.1 The size of brick shall be as specified by the purchaser
and the average size of brick furnished shall approximate the
1.2 If brick having a particular color, texture, finish, or
size specified in the invitation for bids.
uniformity is desired, these features shall be specified sepa-
5.2 No overall dimension (width, height, and length) shall
rately by the purchaser.
differ by more than 6 ⁄8 in. (3.2 mm) from the specified
1.3 The text of this standard references notes and footnotes
standard dimension. The width requirement does not apply to
which provide explanatory material. These notes and footnotes
textured finishes such as split or rocked faces. Standard
(excluding those in tables and figures) shall not be considered
dimensions of units are the manufacturer’s designated dimen-
as requirements of the standard.
sions.
1.4 The values stated in inch-pound units are to be regarded
6. Finish and Appearance
as standard. The values given in parentheses are mathematical
conversions to SI units that are provided for information only
6.1 All units shall be sound and free of cracks or other
and are not considered standard.
defects that interfere with the proper placement of the unit or
significantlyimpairthestrengthorpermanenceoftheconstruc-
tion. Minor cracks incidental to the usual methods of
This specification is under the jurisdiction of ASTM Committee C15 on
Manufactured Masonry Units and is the direct responsibility of Subcommittee
C15.03 on Concrete Masonry Units and Related Units. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved Dec. 1, 2014. Published January 2015. Originally contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
approved in 1928. Last previous edition approved in 2010 as C73 – 10. DOI: Standards volume information, refer to the standard’s Document Summary page on
10.1520/C0073-14. 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 St
...
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: C73 − 10 C73 − 14
Standard Specification for
Calcium Silicate Brick (Sand-Lime Brick)
This standard is issued under the fixed designation C73; 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.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope*
1.1 This specification covers brick made principally from sand and lime and intended for use in brick masonry. Two grades of
brick are covered:
1.1.1 Grade SW—Brick intended for use where exposed to temperature below freezing in the presence of moisture.
NOTE 1—As a typical example, brick used for foundation courses and parapets in the northeastern quarter of the United States should conform to Grade
SW.
1.1.2 Grade MW—Brick intended for use where exposed to temperature below freezing but unlikely to be saturated with water.
NOTE 2—As a typical example, brick exposed in the face of the wall other than parapet or foundations, or brick intended for structures located in regions
of the United States characterized by less severe frost action or by drier climate than is found in the northeastern quarter of the United States should
conform to Grade MW.
1.1.3 When the term brick is used in this specification, it is understood to mean brick or solid masonry units.
1.2 If brick having a particular color, texture, finish, or uniformity is desired, these features shall be specified separately by the
purchaser.
1.3 The text of this standard references notes and footnotes which provide explanatory material. These notes and footnotes
(excluding those in tables and figures) shall not be considered as requirements of the standard.
1.4 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.
2. Referenced Documents
2.1 ASTM Standards:
C140 Test Methods for Sampling and Testing Concrete Masonry Units and Related Units
C1232 Terminology of Masonry
3. Terminology
3.1 Terminology defined in Terminology C1232 shall apply for this specification.
4. Physical Requirements
4.1 The brick shall conform to the physical requirements for the grade specified, as prescribed in Table 1.
4.2 Unless otherwise specified by the purchaser, brick of Grades SW and MW shall be accepted. Grade SW shall be accepted
in lieu of Grade MW.
5. Dimensions and Permissible Variations
5.1 The size of brick shall be as specified by the purchaser and the average size of brick furnished shall approximate the size
specified in the invitation for bids.
This specification is under the jurisdiction of ASTM Committee C15 on Manufactured Masonry Units and is the direct responsibility of Subcommittee C15.03 on
Concrete Masonry Units and Related Units.
Current edition approved Dec. 1, 2010Dec. 1, 2014. Published December 2010January 2015. Originally approved in 1928. Last previous edition approved in 20052010
as C73 – 05.C73 – 10. DOI: 10.1520/C0073-10.10.1520/C0073-14.
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
C73 − 14
TABLE 1 Physical Requirements
Compressive Strength
min, psi (MPa), (brick Water
tested flatwise) average Absorption,
Designation
gross area max
3 3
Average of Individual lb/ft (kg/m )
3 Brick Brick
Grade SW 5500 (37.9) 4500 (31.0) 15 (240)
Grade MW 3500 (24.1) 3000 (20.7) 18 (288)
5.2 No overall dimension (width, height, and length) shall differ by more than 6 ⁄8 in. (3.2 mm) from the specified standard
dim
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