ASTM C1232-05
(Terminology)Standard Terminology of Masonry
Standard Terminology of Masonry
SCOPE
1.1 This terminology covers generic terms and generic definitions of terms specifically associated with masonry.
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Designation:C1232–05
Standard Terminology of
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Masonry
This standard is issued under the fixed designation C 1232; 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.
1. Scope* freeze thaw resistance, n—the ability of masonry to maintain
integrity under the forces caused by cyclic action of freezing
1.1 This terminology covers generic terms and generic
and thawing in the presence of moisture.
definitions of terms specifically associated with masonry.
frog, n—an indentation in a bed surface of a masonry unit.
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2. Referenced Documents
Indentations not exceeding ⁄8 in. are termed a frog,
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sometimes called a panel or panel frog. Indentations exceed-
2.1 ASTM Standards:
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ing ⁄8 in. are termed a deep frog.
C43 Terminology of Structural Clay Products
groove, n—a channel formed on surfaces other than faces of
C 1180 Terminology of Mortar and Grout for Unit Masonry
manufactured masonry units for production or construction
C 1209 Terminology of Concrete Masonry Units
purposes.
3. Terminology
height, n—vertical dimension of the face of a unit when the
unit is positioned as a stretcher.
3.1 Definitions—The definitions in this terminology are
hollow masonry unit—unit whose net cross-sectional area in
generic as used by ASTM Committees C12 and C15. For
any plane parallel to the surface containing cores, cells, or
terminology specific to: (1) structural clay products, see
deep frogs is less than 75 % of its gross cross-sectional area
Terminology C43,(2) mortar and grout, see Terminology
measured in the same plane.
C 1180, and (3) concrete masonry units, see Terminology
length, n—horizontal dimension of the face of a unit when the
C 1209.
unit is positioned as a stretcher.
bedsurface, n—(1) the nonvertical surfaces of a manufactured
manufactured masonry unit, n—a manmade noncombustible
masonry unit intended by the manufacturer to be joined by
building product intended to be laid by hand and joined by
mortar or other methods. (2) the in situ nonvertical surfaces
mortar, grout, or other methods of joining.
of a manufactured masonry unit joined by mortar or other
masonry, n—the type of construction made up of masonry
methods.
units laid with mortar, grout, or other methods of joining.
cryptoflorescence, n—crystalline deposit of water-soluble
nominal dimension—dimension that is greater than the speci-
compounds in the pores of masonry.
fieddimensionbythethicknessofamortarjoint.Itisusually
efflorescence, n—crystalline deposit, usually white, of water-
expressed as a whole number.
soluble compounds on the surface of masonry.
score, n—a channel formed for appearance purposes on the
face, exposed, n—the in situ exposed surface(s) of a manu-
face or faces of a manufactured masonry unit.
factured masonry unit.
shell, n—the outer walls of a hollow masonry unit. Shell can
face, finished, n—any surface(s) of a manufactured masonry
either be an end shell or a face shell.
unit intended by the manufacturer to be exposed to view.
solid masonry unit—unit whose net cross-
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