ASTM C652-01a

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

• Replaces: ASTM C652-01 - Standard Specification for Hollow Brick (Hollow Masonry Units Made From Clay or Shale)
• Effective Date: 10-Sep-2001
• Replaced By: ASTM C652-04 - Standard Specification for Hollow Brick (Hollow Masonry Units Made From Clay or Shale)
• Effective Date: 01-Jan-2004
• 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 withdrawn. Contact ASTM
International (www.astm.org) for the latest information.
Designation: C 652 – 01a
Standard Specification for
Hollow Brick (Hollow Masonry Units Made From Clay or
1
Shale)
This standard is issued under the fixed designation C652; 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.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 * (excluding those in tables and figures) shall not be considered
as requirements of the standard.
1.1 This specification covers hollow building brick and
1.6 The values stated in inch-pound units are to be regarded
hollow facing brick made from clay, shale, fire clay, or
as the standard. The values given in parentheses are for
mixtures thereof, and fired to incipient fusion. Four types of
information only.
hollowbrickineachoftwogradesandtwoclassesarecovered.
In this specification the term hollow brick shall be understood
2. Referenced Documents
to mean hollow clay masonry units whose net cross-sectional
2.1 ASTM Standards:
area(solidarea)inanyplaneparalleltothesurface,containing
C34 Specification for Structural Clay Load-Bearing Wall
the cores, cells, or deep frogs, is less than 75% of its gross
2
Tile
cross-sectional area measured in the same plane (see 3.3).This
2
C43 Terminology of Structural Clay Products
specification does not cover brick intended for use as paving
C62 SpecificationforBuildingBrick(SolidMasonryUnits
brick (see Specification C902).
2
Made from Clay or Shale)
1.2 The property requirements of this standard apply at the
C67 Test Methods for Sampling and Testing Brick and
time of purchase. The use of results from testing of brick
2
Structural Clay Tile
extracted from masonry structures for determining conform-
2
C212 Specification for Structural Clay Facing Tile
ance or nonconformance to the property requirements (Section
C216 Specification for Facing Brick (Solid Masonry Units
5) of this standard is beyond the scope of this standard.
2
Made from Clay or Shale)
1.3 Brick covered by this specification are manufactured
C902 Specification for Pedestrian and Light Traffic Paving
from clay, shale, or similar naturally occurring substances and
2
Brick
subjected to a heat treatment at elevated temperatures (firing).
E835/E835M Guide for Modular Coordination of Clay
The heat treatment shall develop sufficient fired bond between
3
and Concrete Masonry Units
the particulate constituents to provide the strength and dura-
bility requirements of this specification. (See “firing” and
3. Classification
“firing bond” in Terminology C43.)
3.1 Grades—Two grades of hollow brick are covered:
1.4 Hollow brick differ from unglazed structural clay tile
3.1.1 Grade SW—Hollow brick intended for use where a
(SpecificationsC34andC212)andsolidbrick(Specifications
high and uniform degree of resistance to frost action and
C62 and C216). Hollow brick require greater shell and web
disintegration by weathering is desired and the exposure is
thicknesses and higher minimum compressive strength than
suchthatthehollowbrickmaybefrozenwhenpermeatedwith
structural clay tile, but permit greater void area and lesser
water.
distance from exposed edge to core hole than solid brick.
3.1.2 Grade MW—Hollow brick intended for use where a
Therefore, environmental and structural performance may be
moderate and somewhat nonuniform degree of resistance to
different in elements constructed of hollow brick from those
frost action is permissible or where they are unlikely to be
constructed of structural clay tile or solid brick.
permeated with water when exposed to temperatures below
1.5 The text of this standard references notes and footnotes
freezing.
which provide explanatory material.These notes and footnotes
3.2 Types—Four types of hollow brick are covered:
3.2.1 Type HBS—Hollow brick for general use in masonry.
1
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 Sept. 10, 2001. Published November 2001. Originally Annual Book of ASTM Standards, Vol 04.05.
3
published as C652–70. Last previous edition C652–01. Annual Book of ASTM Standards, Vol 04.07.
*A Summary of Changes section appears at the end of this standard.
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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.
C 652
3.2.2 Type HBX—Hollow brick fo
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