ASTM C587-04

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation: C587 – 04
Standard Specification for
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Gypsum Veneer Plaster
This standard is issued under the fixed designation C587; 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* C473 Test Methods for Physical Testing of Gypsum Panel
Products
1.1 This specification covers calcined gypsum mixed at the
C843 Specification forApplication of GypsumVeneer Plas-
mill with other ingredients to control working quality and
ter
setting time; specifically designed as a veneer plaster to be
C1396/C1396M Specification for Gypsum Board
applied over gypsum base for veneer plasters, masonry or
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concrete surfaces to a maximum thickness of ⁄4 in. (6.4 mm)
3. Terminology
providing a surface ready for decoration.
3.1 Definitions:
NOTE 1—Specification C843 contains application procedures for gyp-
3.1.1 Definitions of terms shall be in accordance with
sum veneer plaster.
Terminology C11 and Specification C843.
1.2 This specification covers test methods for determining
3.2 Definition of Term Specific to This Standard:
thephysicalpropertiesofgypsumveneerplastersandsetsforth
3.2.1 gypsum veneer plaster systems, n—veneer plaster
minimum requirements that must be met.
applied in accordance with Specification C843 to gypsum base
1.3 The values stated in inch-pound units are to be regarded
for veneer plasters.
as the standard.The SI (metric) values given in parentheses are
4. Physical Properties
approximate and are provided for information purposes only.
1.4 The text of this standard references notes and footnotes
4.1 Joint Strength—Gypsum veneer plaster systems applied
which provide explanatory material. These notes and footnotes in accordance with Specification C843 shall be tested in
shall not be considered as requirements of the standard.
accordance with 5.9. The breaking load shall be not less than
1.5 The following safety hazards caveat applies only to the theparalleltosurfacingloadsspecifiedinSpecificationC1396/
Test Methods portion, Section 5 of this specification: This C1396M.
standard does not purport to address all of the safety concerns,
4.2 Bond Strength—The bond strength of the gypsum ve-
if any, associated with its use. It is the responsibility of the user neer plaster to the gypsum veneer base and, where applicable,
of this standard to establish appropriate safety and health
between the base coat plaster and the finish coat shall not
practices and determine the applicability of regulatory limita- delaminate when tested in accordance with 5.6.
tions prior to use.
4.3 Impact Strength—Gypsum veneer plaster systems shall
not crack or lose bond beyond the impact area when tested in
2. Referenced Documents
accordance with 5.7.
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2.1 ASTM Standards:
4.4 Flexure—Gypsum veneer plaster systems shall exhibit
C11 TerminologyRelatingtoGypsumandRelatedBuilding
crack resistance within the field of the gypsum base for veneer
Materials and Systems
plasters such that radial or random cracking shall extend not
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more than ⁄2 in. (13 mm) from the break line at failure when
tested in accordance with 5.8. At rupture of the panel the
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veneer plaster shall be securely bonded to the face paper.
This specification is under the jurisdiction of ASTM Committee C11 on
Gypsum and Related Building Materials and Systems and is the direct responsi-
bility of Subcommittee C11.01 on Specifications and Test Methods for Gypsum 5. Test Methods
Products.
5.1 Materials—Gypsum Base for Veneer Plaster, see Speci-
Current edition approved Dec. 1, 2004. Published December 2004. Originally
fication C1396/C1396M.
approved in 1966. Last previous edition approved in 2002 as C587 – 02. DOI:
10.1520/C0587-04.
5.2 Sampling—Sample not less than 1 % of the packages,
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For referenced ASTM standards, visit the ASTM website, www.astm.org, or
but not less than 5 packages. Select packages to be sampled at
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
random. Take samples both from the outer portion and the
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. center of each package. Thoroughly mix the materials so
*A Summary of Changes section appears at the end of this standard.
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C587 – 04
obtained to provide a composite sample of not less than 15 lb 5.8.1 Significance and Use—The flexure test is designed to
(6.8 kg). Place this composite sample immediatel
...