ASTM C11-08b

Standard Terminology Relating to Gypsum and Related Building Materials and Systems

SCOPE
1.1 This standard covers terminology relating to gypsum and related building materials and systems. The terms are generically defined. More specific and expanded definitions may appear in appropriate standards.

General Information

• Status: Historical
• Publication Date: 30-Apr-2008
• ICS: 01.040.91 - Construction materials and building (Vocabularies)
• ICS: 91.100.10 - Cement. Gypsum. Lime. Mortar
• Technical Committee: C11 - Gypsum and Related Building Materials and Systems
• Drafting Committee: C11.91 - Terminology and Editorial

Relations

• Replaces: ASTM C11-08a - Standard Terminology Relating to Gypsum and Related Building Materials and Systems
• Effective Date: 01-May-2008
• Replaced By: ASTM C11-08c - Standard Terminology Relating to Gypsum and Related Building Materials and Systems
• Effective Date: 01-Aug-2008
• Referred By: ASTM C1513-18 - Standard Specification for Steel Tapping Screws for Cold-Formed Steel Framing Connections
• Effective Date: 01-May-2008
• Referred By: ASTM C954-22 - Standard Specification for Steel Drill Screws for the Application of Gypsum Panel Products or Metal Plaster Bases to Steel Studs from 0.033 in. (0.84 mm) to 0.112 in. (2.84 mm) in Thickness
• Effective Date: 01-May-2008
• Referred By: ASTM C754-20 - Standard Specification for Installation of Steel Framing Members to Receive Screw-Attached Gypsum Panel Products
• Effective Date: 01-May-2008
• Referred By: ASTM C1007-20 - Standard Specification for Installation of Load Bearing (Transverse and Axial) Steel Studs and Related Accessories
• Effective Date: 01-May-2008
• Referred By: ASTM C22/C22M-00(2021) - Standard Specification for Gypsum
• Effective Date: 01-May-2008
• Referred By: ASTM C841-23 - Standard Specification for Installation of Interior Lathing and Furring
• Effective Date: 01-May-2008
• Referred By: ASTM C471M-20ae1 - Standard Test Methods for Chemical Analysis of Gypsum and Gypsum Products (Metric)
• Effective Date: 01-May-2008
• Referred By: ASTM C840-20 - Standard Specification for Application and Finishing of Gypsum Board
• Effective Date: 01-May-2008
• Referred By: ASTM C35-01(2019) - Standard Specification for Inorganic Aggregates for Use in Gypsum Plaster
• Effective Date: 01-May-2008
• Referred By: ASTM C1280-18 - Standard Specification for Application of Exterior Gypsum Panel Products for Use as Sheathing
• Effective Date: 01-May-2008
• Referred By: ASTM C219-20a - Standard Terminology Relating to Hydraulic and Other Inorganic Cements
• Effective Date: 01-May-2008
• Referred By: ASTM C28/C28M-10(2020) - Standard Specification for Gypsum Plasters
• Effective Date: 01-May-2008
• Referred By: ASTM E1602-03(2017) - Standard Guide for Construction of Solid Fuel Burning Masonry Heaters
• Effective Date: 01-May-2008

Standards Content (Sample)

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:C11–08b
Standard Terminology Relating to
1
Gypsum and Related Building Materials and Systems
ThisstandardisissuedunderthefixeddesignationC 11;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginal
adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.Asuperscript
epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope* C 588/C 588M Specification for Gypsum Base for Veneer
3
Plasters
1.1 This standard covers terminology relating to gypsum
C 1396/C 1396M Specification for Gypsum Board
and related building materials and systems. The terms are
E84 Test Method for Surface Burning Characteristics of
generically defined. More specific and expanded definitions
Building Materials
may appear in appropriate standards.
E 96/E 96M Test Methods for Water Vapor Transmission of
2. Referenced Documents
Materials
2
E119 Test Methods for Fire Tests of Building Construction
2.1 ASTM Standards:
and Materials
C 22/C 22M Specification for Gypsum
E 337 Test Method for Measuring Humidity with a Psy-
C 28/C 28M Specification for Gypsum Plasters
chrometer (the Measurement of Wet- and Dry-Bulb Tem-
C35 Specification for Inorganic Aggregates for Use in
peratures)
Gypsum Plaster
3
C 36/C 36M Specification for Gypsum Wallboard
3. Terminology
3
C 37/C 37M Specification for Gypsum Lath
3
C52 Specification for Gypsum Partition Tile or Block accelerator, n—a material that reduces setting time.
C 59/C 59M Specification for Gypsum Casting Plaster and accessories, n—products fabricated for the purpose of forming
Gypsum Molding Plaster corners, edges, control joints, or decorative effects.
C 61/C 61M Specification for Gypsum Keene’s Cement adhesive,n—asubstancecapableofholdingmaterialstogether
C 317/C 317M Specification for Gypsum Concrete by surface attachment.
C 318/C 318M Specification for Gypsum Formboard admixture, n—a material other than water, aggregates, hy-
C 472 Test Methods for Physical Testing of Gypsum, Gyp- draulic cementitious material, and fiber reinforcement that is
sum Plasters and Gypsum Concrete usedasaningredienttomodifypropertiesandisaddedtothe
C 473 Test Methods for Physical Testing of Gypsum Panel batch before or during its mixture.
Products aggregate, n—an inert granular material which may be added
C 475/C 475M Specification for Joint Compound and Joint to gypsum plasters. (C35)
Tape for Finishing Gypsum Board all purpose compound, n—a compound formulated and
C 843 Specification for Application of Gypsum Veneer manufactured to serve as a taping or finishing compound, or
Plaster both.
C 557 Specification for Adhesives for Fastening Gypsum anhydrite, n—the mineral consisting primarily of anhydrous
Wallboard to Wood Framing calcium sulfate, CaSO .
4
C 587 Specification for Gypsum Veneer Plaster arris (of an arch), n—the outside corner or angle formed by
the meeting of a wall surface with the curved surface of an
arch (see Fig. 1).
1
This terminology is under the jurisdiction of ASTM Committee C11 on
base coat, n—any or all layers of plaster in place prior to
Gypsum and Related Building Materials and Systems and is the direct responsibility
application of finish coats.
of Subcommittee C11.91 on Terminology and Editorial.
Current edition approved May 1, 2008. Published June 2008. Originally
DISCUSSION—The first application is normally called a scratch coat
approved in 1916. Last previous edition approved in 2008 as C 11 – 08a.
and the second application is referred to as a brown coat.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
bedding coat, n—that coat of plaster to receive aggregate or
Standards volume information, refer to the standard’s Document Summary page on
other decorative material of any size, impinged or embedded
the ASTM website.
3
Withdrawn. into its surface, before it sets.
*A Summary of Changes section appears at the end of this standard.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

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C11–08b
by expansion or contraction of the system. The construction
of the separation is accomplished by one of the following
methods: (1) manufactured devices suitable for this applica-
tion, or (2) by field fabrication of suitable materials.
core (of gypsum board), n—the hardened material filling the
space between the face and back papers consisting substan-
tially of rehydrated gypsum with additives.
cored tile or block, n—see gypsum tile or block. (C52)
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 extern
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation:C11–08a Designation: C 11 – 08b
Standard Terminology Relating to
1
Gypsum and Related Building Materials and Systems
ThisstandardisissuedunderthefixeddesignationC 11;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginal
adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.Asuperscript
epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope*
1.1 This standard covers terminology relating to gypsum and related building materials and systems. The terms are generically
defined. More specific and expanded definitions may appear in appropriate standards.
2. Referenced Documents
2
2.1 ASTM Standards:
C 22/C 22M Specification for Gypsum
C 28/C 28M Specification for Gypsum Plasters
C 35 Specification for Inorganic Aggregates for Use in Gypsum Plaster
C 36/C 36M Specification for Gypsum Wallboard
C 37/C 37M Specification for Gypsum Lath
3
C 52 Specification for Gypsum Partition Tile or Block
C 59/C 59M Specification for Gypsum Casting Plaster and Gypsum Molding Plaster
C 61/C 61M Specification for Gypsum Keene’s Cement
C 317/C 317M Specification for Gypsum Concrete
C 318/C 318M Specification for Gypsum Formboard
C 472 Test Methods for Physical Testing of Gypsum, Gypsum Plasters and Gypsum Concrete
C 473 Test Methods for Physical Testing of Gypsum Panel Products
C 475/C 475M Specification for Joint Compound and Joint Tape for Finishing Gypsum Board
C 843 Specification for Application of Gypsum Veneer Plaster
C 557 Specification for Adhesives for Fastening Gypsum Wallboard to Wood Framing
C 587 Specification for Gypsum Veneer Plaster
C 588/C 588M Specification for Gypsum Base for Veneer Plasters
C 1396/C 1396M Specification for Gypsum Board
E 84 Test Method for Surface Burning Characteristics of Building Materials
E 96/E 96M Test Methods for Water Vapor Transmission of Materials
E 119 Test Methods for Fire Tests of Building Construction and Materials
E 337 Test Method for Measuring Humidity with a Psychrometer (the Measurement of Wet- and Dry-Bulb Temperatures)
3. Terminology
accelerator, n—a material that reduces setting time.
accessories, n—products fabricated for the purpose of forming corners, edges, control joints, or decorative effects.
adhesive, n—a substance capable of holding materials together by surface attachment.
admixture, n—a material other than water, aggregates, hydraulic cementitious material, and fiber reinforcement that is used as an
ingredient to modify properties and is added to the batch before or during its mixture.
aggregate, n—an inert granular material which may be added to gypsum plasters. (C 35)
all purpose compound, n—a compound formulated and manufactured to serve as a taping or finishing compound, or both.
anhydrite, n—the mineral consisting primarily of anhydrous calcium sulfate, CaSO .
4
arris (of an arch), n—the outside corner or angle formed by the meeting of a wall surface with the curved surface of an arch (see
Fig. 1).
1
This terminology is under the jurisdiction of ASTM Committee C11 on Gypsum and Related Building Materials and Systems and is the direct responsibilityof
Subcommittee C11.91 on Terminology and Editorial.
Current edition approved Feb.May 1, 2008. Published FebruaryJune 2008. Originally approved in 1916. Last previous edition approved in 2008 as C 11 – 08a.
2
ForreferencedASTMstandards,visittheASTMwebsite,www.astm.org,[e-mail]ards
volume information, refer to the standard’s Document Summary page on the ASTM website.
*A Summary of Changes section appears at the end of this standard.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

---------------------- Page: 1 ----------------------
C11–08b
FIG. 1 Arris (of an Arch)
base coat, n—any or all layers of plaster in place prior to application of finish coats.
DISCUSSION—The first application is normally called a scratch coat and the second application is referred to as a brown coat.
bedding coat, n—that coat of plaster to receive aggregate or other decorative material of any size, impinged or embedded into
its surface, before it sets.
bond plaster, n—a calcined gypsum plaster specially formulated for application over rough monolithic concrete as a bonding coat
for a subsequent gypsum plaster layer. (C 28/C 28M)
bridging, n—in framing , sections of wood or metal pieces used between framing members to stiffen, give lateral support, and
minimize rotat
...