ASTM C652-00a

Standard Specification for Hollow Brick (Hollow Masonry Units Made From Clay or Shale)

SCOPE
1.1 This specification covers hollow building brick and hollow facing brick made from clay, shale, fire clay, or mixtures thereof, and fired to incipient fusion. Four types of hollow brick in each of two grades and two classes are covered. In this specification the term hollow brick shall be understood to mean hollow clay masonry units whose net cross-sectional area (solid area) in any plane parallel to the surface, containing the cores, cells, or deep frogs, is less than 75 % of its gross cross-sectional area measured in the same plane (see 3.3). This specification does not cover brick intended for use as paving brick (see Specification C902).
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 5) of this standard is beyond the scope of this standard.
1.3 Brick covered by this specification are manufactured from clay, shale, or similar naturally occurring substances and subjected to a heat treatment at elevated temperatures (firing). The heat treatment shall develop sufficient fired bond between the particulate constituents to provide the strength and durability requirements of this specification. (See "firing" and "firing bond" in Terminology C43.)
1.4 Hollow brick differ from unglazed structural clay tile (Specifications C34 and C212) and solid brick (Specifications C62 and C216). Hollow brick require greater shell and web thicknesses and higher minimum compressive strength than structural clay tile, but permit greater void area and lesser distance from exposed edge to core hole than solid brick. Therefore, environmental and structural performance may be different in elements constructed of hollow brick from those constructed of structural clay tile or solid brick.
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

• Status: Historical
• Publication Date: 09-Sep-2001
• ICS: 91.100.15 - Mineral materials and products
• Technical Committee: C15 - Manufactured Masonry Units
• Drafting Committee: C15.02 - Brick and Structural Clay Tile

Relations

• Replaced By: ASTM C652-01 - Standard Specification for Hollow Brick (Hollow Masonry Units Made From Clay or Shale)
• Effective Date: 10-Sep-2001
• Referred By: ASTM C1232-21a - Standard Terminology for Masonry
• Effective Date: 10-Sep-2001
• Referred By: ASTM E2266-22 - Standard Guide for Design and Construction of Low-Rise Frame Building Wall Systems to Resist Water Intrusion
• Effective Date: 10-Sep-2001
• Referred By: ASTM C1283-15(2021) - Standard Practice for Installing Clay Flue Lining
• Effective Date: 10-Sep-2001

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
Designation: C 652 – 00a
Standard Specification for
Hollow Brick (Hollow Masonry Units Made From Clay or
1
Shale)
This standard is issued under the fixed designation C 652; 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.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope * 1.6 The values stated in inch-pound units are to be regarded
as the standard. The values given in parentheses are for
1.1 This specification covers hollow building brick and
information only.
hollow facing brick made from clay, shale, fire clay, or
mixtures thereof, and fired to incipient fusion. Four types of
2. Referenced Documents
hollow brick in each of two grades and two classes are covered.
2.1 ASTM Standards:
In this specification the term hollow brick shall be understood
C 34 Specification for Structural Clay Load-Bearing Wall
to mean hollow clay masonry units whose net cross-sectional
2
Tile
area (solid area) in any plane parallel to the surface, containing
2
C 43 Terminology of Structural Clay Products
the cores, cells, or deep frogs, is less than 75 % of its gross
C 62 Specification for Building Brick (Solid Masonry Units
cross-sectional area measured in the same plane (see 3.3). This
2
Made from Clay or Shale)
specification does not cover brick intended for use as paving
C 67 Test Methods for Sampling and Testing Brick and
brick (see Specification C 902).
2
Structural Clay Tile
1.2 The property requirements of this standard apply at the
2
C 212 Specification for Structural Clay Facing Tile
time of purchase. The use of results from testing of brick
C 216 Specification for Facing Brick (Solid Masonry Units
extracted from masonry structures for determining conform-
2
Made from Clay or Shale)
ance or nonconformance to the property requirements (Section
C 902 Specification for Pedestrian and Light Traffic Paving
5) of this standard is beyond the scope of this standard.
2
Brick
1.3 Brick covered by this specification are manufactured
E 835/E 835M Guide for Modular Coordination of Clay
from clay, shale, or similar naturally occurring substances and
3
and Concrete Masonry Units
subjected to a heat treatment at elevated temperatures (firing).
The heat treatment shall develop sufficient fired bond between
3. Classification
the particulate constituents to provide the strength and dura-
3.1 Grades—Two grades of hollow brick are covered:
bility requirements of this specification. (See “firing” and
3.1.1 Grade SW—Hollow brick intended for use where a
“firing bond” in Terminology C 43.)
high and uniform degree of resistance to frost action and
1.4 Hollow brick differ from unglazed structural clay tile
disintegration by weathering is desired and the exposure is
(Specifications C 34 and C 212) and solid brick (Specifications
such that the hollow brick may be frozen when permeated with
C 62 and C 216). Hollow brick require greater shell and web
water.
thicknesses and higher minimum compressive strength than
3.1.2 Grade MW—Hollow brick intended for use where a
structural clay tile, but permit greater void area and lesser
moderate and somewhat nonuniform degree of resistance to
distance from exposed edge to core hole than solid brick.
frost action is permissible or where they are unlikely to be
Therefore, environmental and structural performance may be
permeated with water when exposed to temperatures below
different in elements constructed of hollow brick from those
freezing.
constructed of structural clay tile or solid brick.
3.2 Types—Four types of hollow brick are covered:
1.5 The text of this standard references notes and footnotes
3.2.1 Type HBS—Hollow brick for general use in masonry.
which provide explanatory material. These notes and footnotes
3.2.2 Type HBX—Hollow brick for general use in masonry
(excluding those in tables and figures) shall not be considered
where a higher degree of precision and lower permissible
as requirements of the standard.
variation in size than permitted for Type HBS is required.
3.2.3 Type HBA—Hollow brick for general use in masonry
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selected to produce characteristic architectural effects resulting
This specification is under the jurisdiction of ASTM Committee C15 on
Manufactured Masonry Units and is the direct responsibility of Subcommittee
C15.02 on Brick and Structural Clay Tile.
2
Current edition approved June 10, 2000. Published September 2000. Originally Annual Book of ASTM Standards, Vol 04.05.
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published as C 652–70. Last previous edition C 652–00. Annual Book of ASTM Standards, Vol 04.07.
*A Summary of Changes section appears at the end of this standard.
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