ASTM C843-99(2006)

Standard Specification for Application of Gypsum Veneer Plaster

ABSTRACT
This specification covers the minimum requirements for gypsum veneer plaster and includes application methods on systems such as electric heat cable systems but not exceeding a specified temperature. Applicable building code regulations should be followed when a specific degree of fire resistance is required. Plaster and other cementitious materials should be kept dry until these are ready to be used and should be kept off the ground, under cover, and away from damp walls and surfaces.
SCOPE
1.1 This specification covers the minimum requirements for and methods of applying gypsum veneer plaster.
1.2 Where a specific degree of fire resistance is required for veneer plaster systems, applicable building code regulations shall be followed.
1.2.1 Details of construction for a specific assembly to achieve the required fire resistance shall be obtained from reports of fire-resistance tests, engineering evaluations, or listings from recognized fire testing laboratories.
1.3 Where a specific degree of sound control is required for veneer plaster assemblies and constructions, details of construction shall be in compliance with official reports of tests conducted in recognized sound testing laboratories in accordance with the applicable sound tests of Test Methods E 90, C 423, or E 492. Note 1
To ensure desirable results, coordinate this specification with Specification C 844. Note 2
General information regarding matters of a contractual nature concerning veneer plaster work is found in . Additional technical information related to veneer plastering is provided in .
1.4 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.
1.5 The text of this specification references notes and footnotes which provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of the specification.

General Information

• Status: Historical
• Publication Date: 30-Apr-2006
• ICS: 91.100.10 - Cement. Gypsum. Lime. Mortar
• Technical Committee: C11 - Gypsum and Related Building Materials and Systems
• Drafting Committee: C11.03 - Specifications for the Application of Gypsum and Other Products in Assemblies

Relations

• Replaces: ASTM C843-99e1 - Standard Specification for Application of Gypsum Veneer Plaster
• Effective Date: 01-May-2006
• Replaced By: ASTM C843-99(2012) - Standard Specification for Application of Gypsum Veneer Plaster
• Effective Date: 01-Mar-2012
• Referred By: ASTM C587-04(2018) - Standard Specification for Gypsum Veneer Plaster
• Effective Date: 01-May-2006
• Referred By: ASTM C11-23 - Standard Terminology Relating to Gypsum and Related Building Materials and Systems
• Effective Date: 01-May-2006

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: C843 – 99 (Reapproved 2006)
Standard Specification for
1
Application of Gypsum Veneer Plaster
This standard is issued under the fixed designation C843; 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 (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope C11 TerminologyRelatingtoGypsumandRelatedBuilding
Materials and Systems
1.1 This specification covers the minimum requirements for
C423 Test Method for Sound Absorption and Sound Ab-
and methods of applying gypsum veneer plaster.
sorption Coefficients by the Reverberation Room Method
1.2 Where a specific degree of fire resistance is required for
C587 Specification for Gypsum Veneer Plaster
veneer plaster systems, applicable building code regulations
C588/C588M Specification for Gypsum Base for Veneer
shall be followed.
3
Plasters
1.2.1 Details of construction for a specific assembly to
C631 Specification for Bonding Compounds for Interior
achieve the required fire resistance shall be obtained from
Gypsum Plastering
reports of fire-resistance tests, engineering evaluations, or
C844 Specification for Application of Gypsum Base to
listings from recognized fire testing laboratories.
Receive Gypsum Veneer Plaster
1.3 Where a specific degree of sound control is required for
C1047 Specification forAccessories for GypsumWallboard
veneer plaster assemblies and constructions, details of con-
and Gypsum Veneer Base
struction shall be in compliance with official reports of tests
E90 Test Method for Laboratory Measurement of Airborne
conducted in recognized sound testing laboratories in accor-
Sound Transmission Loss of Building Partitions and Ele-
dance with the applicable sound tests of Test Methods E90,
ments
C423,or E492.
E492 Test Method for Laboratory Measurement of Impact
NOTE 1—To ensure desirable results, coordinate this specification with
Sound Transmission Through Floor-Ceiling Assemblies
Specification C844.
Using the Tapping Machine
NOTE 2—General information regarding matters of a contractual nature
concerning veneer plaster work is found in Appendix X1. Additional
3. Terminology
technical information related to veneer plastering is provided inAppendix
3.1 Definitions:
X2.
3.1.1 See Terminology C11.
1.4 The values stated in inch-pound units are to be regarded
3.2 Definitions of Terms Specific to This Standard:
as the standard. The values given in parentheses are for
3.2.1 base coat, n—veneer plaster trowel or machine ap-
information only.
plied as the first coat of a two-component system.
1.5 The text of this specification references notes and
3.2.2 finish coat, n—veneer finish plaster trowel or machine
footnotes which provide explanatory material. These notes and
applied as the second coat over the base coat plaster in a
footnotes (excluding those in tables and figures) shall not be
two-component system.
considered as requirements of the specification.
3.2.2.1 smooth-trowel finish, n—afinishresultingfromsteel
troweling with a minimum of water after the plaster has
2. Referenced Documents
2 become firm.Asmooth finish free of trowel marks, blemishes,
2.1 ASTM Standards:
or other imperfections.
3.2.2.2 texture finish, n—a finish resulting from (1) trowel
1
This specification is under the jurisdiction of ASTM Committee C11 on
applicationfollowedbyfloatingortexturingofthesurfacewith
GypsumandRelatedBuildingMaterialsandSystemsandisthedirectresponsibility
any of a variety of tools using a minimum of water or (2)
of Subcommittee C11.03 on Specifications for Application of Gypsum and Other
machine application, left as applied or followed by hand
Products in Assemblies.
Current edition approved May 1, 2006. Published May 2006. Originally texturing.
´1
approved in 1976. Last previous edition approved in 1999 as C843 – 99 . DOI:
10.1520/C0843-99R06.
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
3
Standards volume information, refer to the standard’s Document Summary page on Withdrawn. The last approved version of this historical standard is referenced
the ASTM website. on www.astm.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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C843 – 99 (2006)
3.2.3 joint-reinforcing embedment, n—the cementitious ma- 7.6 Accessories—Specification C1047.
terial used to embed the strip material that is compatible with
the veneer plaster used.
8. Surface Preparation
3.2.4 one-component system, n—a veneer plaster system
8.1 Examinat
...