ASTM C11-08c

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: 31-Jul-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 C11-08b - Standard Terminology Relating to Gypsum and Related Building Materials and Systems
• Effective Date: 01-Aug-2008
• Replaced By: ASTM C11-10 - Standard Terminology Relating to Gypsum and Related Building Materials and Systems
• Effective Date: 01-Jan-2010
• Referred By: ASTM C844-15(2021) - Standard Specification for Application of Gypsum Base to Receive<brk/> Gypsum Veneer Plaster
• Effective Date: 01-Aug-2008
• Referred By: ASTM C843-23 - Standard Specification for Application of Gypsum Veneer Plaster
• Effective Date: 01-Aug-2008
• Referred By: ASTM C956-04(2019) - Standard Specification for Installation of Cast-In-Place Reinforced Gypsum Concrete
• Effective Date: 01-Aug-2008
• Referred By: ASTM C1397-13(2019) - Standard Practice for Application of Class PB Exterior Insulation and Finish Systems (EIFS) and EIFS with Drainage
• Effective Date: 01-Aug-2008
• Referred By: ASTM C35-01(2019) - Standard Specification for Inorganic Aggregates for Use in Gypsum Plaster
• Effective Date: 01-Aug-2008
• Referred By: ASTM C1516-05(2023) - Standard Practice for Application of Direct-Applied Exterior Finish Systems
• Effective Date: 01-Aug-2008
• Referred By: ASTM C1881-20 - Standard Guide for Closed-Loop Recycling of Scrap Gypsum Panel Products
• Effective Date: 01-Aug-2008
• Referred By: ASTM C1047-19 - Standard Specification for Accessories for Gypsum Wallboard and Gypsum Veneer Base
• Effective Date: 01-Aug-2008
• Referred By: ASTM C219-20a - Standard Terminology Relating to Hydraulic and Other Inorganic Cements
• Effective Date: 01-Aug-2008
• Referred By: ASTM C1658/C1658M-19e1 - Standard Specification for Glass Mat Gypsum Panels
• Effective Date: 01-Aug-2008
• Referred By: ASTM C61/C61M-00(2020) - Standard Specification for Gypsum Keene's Cement
• Effective Date: 01-Aug-2008
• Referred By: ASTM C840-20 - Standard Specification for Application and Finishing of Gypsum Board
• Effective Date: 01-Aug-2008
• Referred By: ASTM C897-15(2020) - Standard Specification for Aggregate for Job-Mixed Portland Cement-Based Plasters
• Effective Date: 01-Aug-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:C11–08c
Standard Terminology Relating to
1
Gypsum and Related Building Materials and Systems
This standard is issued under the fixed designation C11; the number immediately following the designation indicates the year of original
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* C588/C588M Specification for Gypsum Base for Veneer
3
Plasters
1.1 This standard covers terminology relating to gypsum
C954 Specification for Steel Drill Screws for the Applica-
and related building materials and systems. The terms are
tion of Gypsum Panel Products or Metal Plaster Bases to
generically defined. More specific and expanded definitions
Steel Studs from 0.033 in. (0.84 mm) to 0.112 in. (2.84
may appear in appropriate standards.
mm) in Thickness
2. Referenced Documents
C1396/C1396M Specification for Gypsum Board
2
E84 Test Method for Surface Burning Characteristics of
2.1 ASTM Standards:
Building Materials
C22/C22M Specification for Gypsum
E96/E96M Test Methods for Water Vapor Transmission of
C28/C28M Specification for Gypsum Plasters
Materials
C35 Specification for Inorganic Aggregates for Use in
E119 Test Methods for Fire Tests of Building Construction
Gypsum Plaster
3
and Materials
C36/C36M Specification for Gypsum Wallboard
3
E337 Test Method for Measuring Humidity with a Psy-
C37/C37M Specification for Gypsum Lath
3
chrometer (the Measurement of Wet- and Dry-Bulb Tem-
C52 Specification for Gypsum Partition Tile or Block
peratures)
C59/C59M Specification for Gypsum Casting Plaster and
Gypsum Molding Plaster
3. Terminology
C61/C61M Specification for Gypsum Keene’s Cement
C317/C317M Specification for Gypsum Concrete accelerator, n—a material that reduces setting time.
C318/C318M Specification for Gypsum Formboard accessories, n—products fabricated for the purpose of forming
C472 Test Methods for Physical Testing of Gypsum, Gyp- corners, edges, control joints, or decorative effects.
sum Plasters and Gypsum Concrete adhesive,n—asubstancecapableofholdingmaterialstogether
C473 Test Methods for Physical Testing of Gypsum Panel by surface attachment.
Products admixture, n—a material other than water, aggregates, hy-
C475/C475M Specification for Joint Compound and Joint draulic cementitious material, and fiber reinforcement that is
Tape for Finishing Gypsum Board usedasaningredienttomodifypropertiesandisaddedtothe
C843 Specification forApplication of GypsumVeneer Plas- batch before or during its mixture.
ter aggregate, n—an inert granular material which may be added
C557 Specification for Adhesives for Fastening Gypsum to gypsum plasters. (C35)
Wallboard to Wood Framing all purpose compound, n—a compound formulated and
C587 Specification for Gypsum Veneer Plaster manufactured to serve as a taping or finishing compound, or
both.
anhydrite, n—the mineral consisting primarily of anhydrous
1
This terminology is under the jurisdiction of ASTM Committee C11 on
calcium sulfate, CaSO .
4
Gypsum and Related Building Materials and Systems and is the direct responsibility
arris (of an arch), n—the outside corner or angle formed by
of Subcommittee C11.91 on Terminology and Editorial.
Current edition approved Aug. 1, 2008. Published September 2008. Originally
the meeting of a wall surface with the curved surface of an
approved in 1916. Last previous edition approved in 2008 as C11 – 08b. DOI:
arch (see Fig. 1).
10.1520/C0011-08C.
2 base coat, n—any or all layers of plaster in place prior to
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM application of finish coats.
Standards volume information, refer to the standard’s Document Summary page on
DISCUSSION—The first application is normally called a scratch coat
the ASTM website.
3
and the second application is referred to as a brown coat.
Withdrawn. The last approved version of this historical standard is referenced
on www.astm.org.
*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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C11–08c
control (expansion-contraction) joint, n—a designed separa-
tioninthesystemmaterialsthatallowsformovementcaused
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 a
...

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:C11–08b Designation: C 11 – 08c
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 954 Specification for Steel Drill Screws for theApplication 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
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
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 MayAug. 1, 2008. Published JuneSeptember 2008. Originally approved in 1916. Last previous edition approved in 2008 as C 11 – 08a.08b.
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 ----------------------
C11–08c
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).
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 pla
...