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ASTM C652-04

Historical Revision

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

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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 ). 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 ) 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 C 43.)

1.4 Hollow brick differ from unglazed structural clay tile (Specifications C 34 and C 212) and solid brick (Specifications C 62 and C 216). 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.


SDO ASTM: ASTM International
Document Number C652
Publication Date Jan. 1, 2004
Language en - English
Page Count 5
Revision Level 04
Supercedes
Committee C15.02
Publish Date Document Id Type View
June 1, 2022 C0652-22 Revision
June 1, 2021 C0652-21 Revision
Dec. 1, 2019 C0652-19B Revision
Aug. 1, 2019 C0652-19A Revision
April 15, 2019 C0652-19 Revision
Oct. 1, 2017 C0652-17A Revision
March 15, 2017 C0652-17 Revision
Aug. 1, 2015 C0652-15 Revision
Feb. 1, 2014 C0652-14 Revision
June 1, 2013 C0652-13 Revision
Dec. 1, 2012 C0652-12A Revision
July 1, 2012 C0652-12 Revision
Aug. 15, 2011 C0652-11 Revision
June 1, 2010 C0652-10 Revision
March 1, 2009 C0652-09 Revision
Aug. 1, 2007 C0652-07 Revision
Dec. 15, 2005 C0652-05A Revision
May 15, 2005 C0652-05 Revision
Aug. 1, 2004 C0652-04A Revision
Jan. 1, 2004 C0652-04 Revision
Sept. 10, 2001 C0652-01A Revision
Sept. 10, 2001 C0652-01 Revision
Sept. 10, 2001 C0652-00A Revision
Not Available C0652-77 Revision