ASTM C62-05
(Specification)Standard Specification for Building Brick (Solid Masonry Units Made From Clay or Shale)
Standard Specification for Building Brick (Solid Masonry Units Made From Clay or Shale)
ABSTRACT
This specification covers building bricks intended for use in structural and nonstructural masonry where external appearance is not a requirement. The bricks are prismatic units available in a variety of sizes, shapes, textures, and colors and are manufactured from clay, shale, or similar naturally occurring earthy substances by firing. The heat treatment should develop sufficient fired bond between material particulates to produce a material that conforms to the required strength and durability. During manufacture, the breaks are shaped by molding, pressing, or extrusion. Bricks are classified into grades according to their resistance to damage by freezing when wet. All the materials should comply with the requirements on appearance, durability, absorption alternate, freezing and thawing alternative, breakage, cracking, weathering index alternative, strength, and initial absorption rate.
SCOPE
1.1 This specification covers brick intended for both structural and nonstructural masonry where external appearance is not a requirement. The brick are prismatic units available in a variety of sizes, shapes, textures, and colors. The specification does not cover brick intended for use as facing units or where surface appearance is a requirement, (see Specification C 216). This specification does not cover brick intended for use as paving brick (see Specification C 902).
1.2 The property requirements of this standard apply at the time of purchase. The use of results from testing of brick extracted from masonry structures for determining conformance or nonconformance to the property requirements (Section 3) of this standard is beyond the scope of this standard.
1.3 Brick are manufactured from clay, shale, or similar naturally occurring earthy substances and subjected to a heat treatment at elevated temperatures (firing). The heat treatment must develop sufficient fired bond between the particulate constituents to provide the strength and durability requirements of this specification. (See firing, fired bond, and incipient fusion in Terminology C 43.)
1.4 Brick are shaped during manufacture by molding, pressing, or extrusion, and the shaping method is a way to describe the brick (see Terminology C 43).
1.5 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.
1.6 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.
General Information
Relations
Standards Content (Sample)
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: C 62 – 05
Standard Specification for
Building Brick (Solid Masonry Units Made From Clay or
1
Shale)
ThisstandardisissuedunderthefixeddesignationC 62;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginal
adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.Asuperscript
epsilon (e) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope* 2. Referenced Documents
2
1.1 This specification covers brick intended for both struc- 2.1 ASTM Standards:
tural and nonstructural masonry where external appearance is C43 Terminology of Structural Clay Products
not a requirement. The brick are prismatic units available in a C67 Test Methods for Sampling and Testing Brick and
variety of sizes, shapes, textures, and colors. The specification Structural Clay Tile
does not cover brick intended for use as facing units or where C 216 Specification for Facing Brick (Solid Masonry Units
surface appearance is a requirement, (see Specification C 216). Made from Clay or Shale)
This specification does not cover brick intended for use as C 902 Specification for Pedestrian and Light Traffic Paving
paving brick (see Specification C 902). Brick
1.2 The property requirements of this standard apply at the E 835/E 835M Guide for Modular Coordination of Clay
time of purchase. The use of results from testing of brick and Concrete Masonry Units
extracted from masonry structures for determining conform-
3. Grades
ance or nonconformance to the property requirements (Section
3) of this standard is beyond the scope of this standard. 3.1 Grades classify brick according to their resistance to
damage by freezing when wet, as defined in Note 1. Three
1.3 Brick are manufactured from clay, shale, or similar
naturally occurring earthy substances and subjected to a heat grades are covered and the grade requirements are shown in
Table 1.
treatment at elevated temperatures (firing). The heat treatment
must develop sufficient fired bond between the particulate 3.1.1 Grade SW (Severe Weathering)—Brick intended for
constituentstoprovidethestrengthanddurabilityrequirements use where high and uniform resistance to damage caused by
cyclic freezing is desired and where the brick may be frozen
of this specification. (See firing, fired bond, and incipient
fusion in TerminologyC43.) when saturated with water.
3.1.2 Grade MW (Moderate Weathering)—Brick intended
1.4 Brick are shaped during manufacture by molding, press-
ing, or extrusion, and the shaping method is a way to describe for use where moderate resistance to cyclic freezing damage is
permissible or where the brick may be damp but not saturated
the brick (see TerminologyC43).
1.5 The text of this standard references notes and footnotes with water when freezing occurs.
3.1.3 Grade NW (Negligible Weathering)—Brick with little
which provide explanatory material. These notes and footnotes
(excluding those in tables and figures) shall not be considered resistance to cyclic freezing damage but which are acceptable
for applications protected from water absorption and freezing.
as requirements of the standard.
1.6 The values stated in inch-pound units are to be regarded
NOTE 1—The word “saturated,” with respect to this standard, refers to
as the standard. The values given in parentheses are for
the condition of a brick that has absorbed water to an amount equal to that
information only.
resulting from submersion in room temperature water for 24 h.
1
This specification is under the jurisdiction of ASTM Committee C15 on
2
Manufactured Masonry Units and is the direct responsibility of Subcommittee For referenced ASTM standards, visit the ASTM website, www.astm.org, or
C15.02 on Brick and Structural Clay Tile. contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Current edition approved Dec. 15, 2005. Published January 2006. Originally Standards volume information, refer to the standard’s Document Summary page on
approved in 1927. Last previous edition approved in 2004 C 62–04a the ASTM website.
*ASummary 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 ----------------------
C62–05
TABLE 1 Physical Requirements
Minimum Compressive Strength Maximum Water Absorption Maximum Saturation
A
gross area, psi (MPa) by 5-h Boiling, % Coefficient
Designation
Average of Average of Average of
Individual Individual Individual
5 Brick 5 Brick 5 Brick
Grade SW 3000 (20.7) 2500 (17.2) 17.0 20.0 0.78 0.80
Grade MW 2500 (17.2) 2200 (15.2) 22.0 25.0 0.88 0.90
Grade NW 1500 (10.3) 1250 (8.6) no limit no limit no limit no
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.