ASTM C11-03d

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Designation: C 11 – 03d
Standard Terminology Relating to
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Gypsum and Related Building Materials and Systems
This standard is issued under the fixed designation C 11; 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 E 84 Test Method for Surface Burning Characteristics of
Building Materials
1.1 This standard covers terminology relating to gypsum
E 96 Test Methods for Water Vapor Transmission of Mate-
and related building materials and systems. The terms are
rials
generically defined. More specific and expanded definitions
E 119 Test Methods for Fire Tests of Building Construction
may appear in appropriate standards.
and Materials
2. Referenced Documents
E 337 Test Method for Measuring Humidity With a Psy-
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chrometer (The Measurement of Wet- and Dry-Bulb Tem-
2.1 ASTM Standards:
peratures)
C 22/C 22M Standard Specification for Gypsum
C 28/C 28M Specification for Gypsum Plasters
3. Terminology
C 35 Specification for Inorganic Aggregates for Use in
Gypsum Plaster accelerator, n—a material that reduces setting time.
C 36/C M Specification for Gypsum Wallboard accessories, n—products fabricated for the purpose of forming
C 37 Specification for Gypsum Lath corners, edges, control joints, or decorative effects.
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C 52 Specification for Gypsum Partition Tile or Block adhesive, n—a substance capable of holding materials together
C 59/C 59M Specification for Gypsum Casting and Mold- by surface attachment.
ing Plaster admixture, n—a material other than water, aggregates, hy-
C 61/C 61M Specification for Gypsum Keene’s Cement draulic cementitious material, and fiber reinforcement that is
C 79/C 79M Specification for Treated Core and Nontreated used as an ingredient to modify properties and is added to the
Core Gypsum Sheathing Board batch before or during its mixture.
C 317/C 317M Specification for Gypsum Concrete aggregate, n—an inert granular material which may be added
C 318/C 318M Specification for Gypsum Formboard to gypsum plasters. (C 35)
C 472 Test Methods for Physical Testing of Gypsum, Gyp- all purpose compound, n—a compound formulated and
sum Plasters and Gypsum Concrete manufactured to serve as a taping or finishing compound, or
C 473 Test Methods for Physical Testing of Gypsum Panel both.
Products anhydrite, n—the mineral consisting primarily of anhydrous
C 475/C 475M Specification for Joint Compound and Joint calcium sulfate, CaSO .
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Tape for Finishing Gypsum Board arris (of an arch), n—the outside corner or angle formed by
C 557 Specification for Adhesives for Fastening Gypsum the meeting of a wall surface with the curved surface of an
Wallboard to Wood Framing arch (see Fig. 1).
C 587 Specification for Gypsum Veneer Plaster basecoat, n—the first layer or layers of plaster applied over
C 588/C 588M Specification for Gypsum Base for Veneer lath or other substrate.
Plasters
DISCUSSION—The first application is normally called a scratch coat
and the second application is referred to as a brown coat.
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This terminology is under the jurisdiction of ASTM Committee C11 on
bedding coat, n—that coat of plaster to receive aggregate or
Gypsum and Related Building Materials and Systems and is the direct responsibility
other decorative material of any size, impinged or embedded
of Subcommittee C11.91 on Terminology and Editorial.
into its surface, before it sets.
Current edition approved Oct. 1, 2003. Published November 2003. Originally
bond plaster, n—a calcined gypsum plaster specially formu-
approved in 1916. Last previous edition approved in 2003 as C 11 – 03c.
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For referenced ASTM standards, visit the ASTM website, www.astm.org, or
lated for application over rough monolithic concrete as a
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
bonding coat for a subsequent gypsum plaster layer.
Standards volume information, refer to the standard’s Document Summary page on
(C 28/C 28M)
the ASTM website.
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Withdrawn.
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C11–03d
cornerbead, n—an accessory for outside corners.
corner reinforcement, exterior, n—a preformed section of
wire or expanded sheet steel, for the reinforcement of
exterior stucco external corners (arrises).
cure (portland cement plaster or stucco), v—(1) to provide
conditions conducive to the hydration process of portland
cement plaster or stucco, or (2) to maintain proper tempera-
ture and a sufficient quantity of water within the plaster to
ensure cement hydration.
density, n—the weight per unit volume of
...