ASTM C1232-01

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Designation: C 1232 – 01
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.
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1. Scope Indentations not exceeding ⁄8 in. are termed a frog, some-
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times called a panel or panel frog. Indentations exceeding ⁄8
1.1 This terminology covers generic terms and generic
in. are termed a deep frog.
definitions of terms specifically associated with masonry.
groove, n—a channel formed on surfaces other than faces of
2. Referenced Documents
manufactured masonry units for production or construction
purposes.
2.1 ASTM Standards:
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height, n—vertical dimension of the face of a unit when the
C 43 Terminology of Structural Clay Products
unit is positioned as a stretcher.
C 1180 Terminology of Mortar and Grout for Unit Ma-
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hollow masonry unit—unit whose net cross-sectional area in
sonry
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any plane parallel to the surface containing cores, cells, or
C 1209 Terminology of Concrete Masonry Units
deep frogs is less than 75 % of its gross cross-sectional area
3. Terminology
measured in the same plane.
length, n—horizontal dimension of the face of a unit when the
3.1 Definitions—The definitions in this terminology are
unit is positioned as a stretcher.
generic as used by ASTM Committees C12 and C15. For
manufactured masonry unit, n—a manmade non-
terminology specific to: (1) structural clay products, see
combustible building product intended to be laid by hand
Terminology C 43, (2) mortar and grout, see Terminology
and joined by mortar, grout, or other methods of joining.
C 1180, and (3) concrete masonry units, see Terminology
masonry, n—the type of construction made up of masonry
C 1209.
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.
fied dimension by the thickness of a mortar joint. It is usually
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
facing unit—manufactured masonry unit designed for use
face or faces of a manufactured masonry unit.
where one or more faces will be exposed and for which the
shell, n—the outer walls of a hollow masonry unit. Shell can
specification includes requirements on color, finish, and
either be an end shell or a face shell.
other properties affecting appearance.
solid masonry unit—unit whose net cross-sect
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