ASTM C55-06

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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 55 – 06
Standard Specification for
1
Concrete Building Brick
ThisstandardisissuedunderthefixeddesignationC 55;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* C 140 Test Methods for Sampling and Testing Concrete
Masonry Units and Related Units
1.1 This specification covers solid, dry-cast, concrete build-
C 150 Specification for Portland Cement
ing brick intended for interior and exterior use in constructing
C 331 Specification for Lightweight Aggregates for Con-
structural masonry, and are made from portland cement, water,
crete Masonry Units
and suitable mineral aggregates with or without the inclusion
C 426 Test Method for Linear Drying Shrinkage of Con-
of other materials.
crete Masonry Units
NOTE 1—Specification C 1634 addresses concrete facing brick used in
C 595 Specification for Blended Hydraulic Cements
facing applications and other exposures (previously referred to in earlier
C 618 Specification for Coal Fly Ash and Raw or Calcined
editions of this standard as Grade N—for use as architectural veneer and
Natural Pozzolan for Use in Concrete
facing units in exterior walls and for use where high-strength and
C 989 Specification for Ground Granulated Blast-Furnace
resistancetomoisturepenetrationandseverefrostactionaredesired).This
Slag for Use in Concrete and Mortars
specification differs from C 1634 in that it addresses properties for
concrete building brick used in non-facing, utilitarian applications (pre-
C 1157 Performance Specification for Hydraulic Cement
viously referred to in earlier editions of this specification as Grade S—for
C 1209 Terminology of Concrete Masonry Units and Re-
general use where moderate strength and resistance to frost action and
lated Units
moisture penetration are required).
C 1232 Terminology of Masonry
1.2 The text of this specification references notes and
C 1634 Specification for Concrete Facing Brick
footnotes which provide explanatory material. These notes and
3. Terminology
footnotes (excluding those in tables and figures) shall not be
considered as requirements of the standard.
3.1 Terminology defined in Terminology C 1209 and Ter-
1.3 The values stated in inch-pound units are to be regarded
minology C 1232 shall apply for this specification.
as the standard. The values given in parentheses are for
3.2 Definitions of Terms Specific to This Standard:
information only.
3.2.1 concrete building brick, n—a concrete masonry unit,
with a maximum width of four (4) inches and of a weight that
NOTE 2—Concrete building brick covered by this specification are
will typically permit it to be lifted and placed with one hand,
made from lightweight or normal weight aggregates, or both.
that is manufactured for general use in non-facing, utilitarian
NOTE 3—When particular features are desired, such as density classi-
fication, high compressive strength, surface textures for appearance or
applications.
bond, finish, color, fire resistance, insulation, acoustical properties, or
3.2.2 concrete facing brick, n—a concrete masonry unit,
other special features, such properties should be specified separately by
with a maximum width of four (4) inches and of a weight that
the purchaser. Suppliers should be consulted as to the availability of
will typically permit it to be lifted and placed with one hand,
concrete building brick having the desired features.
that is manufactured to be typically used in an application
where one or more faces of the unit is intended to be exposed.
2. Referenced Documents
2
2.1 ASTM Standards:
4. Materials and Manufacture
C33 Specification for Concrete Aggregates
4.1 Cementitious Materials—Materials shall conform to the
following applicable specifications:
1
This specification is under the jurisdiction of ASTM Committee C15 on
4.1.1 Portland Cement—Specification C 150.
Manufactured Masonry Units and is the direct responsibility of Subcommittee
4.1.2 Modified Portland Cement—Portland cement con-
C15.03 on Concrete Masonry Units and Related Units.
forming to Specification C 150, modified as follows:
Current edition approved Dec. 15, 2006. Published January 2007. Originally
4.1.2.1 Limestone—Calcium carbonate, with a minimum
approved in 1924. Last previous edition approved in 2003 as C 55 – 03.
2
3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
85 % CaCO content, is permitted to be added to the cement,
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
provided these requirements of Specification C 150 as modi-
Standards volume information, refer
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