ASTM C588/C588M-99

Standard Specification for Gypsum Base for Veneer Plasters

SCOPE
1.1 This specification covers types of gypsum base that are designed to be used as a base for application of veneer plaster (see Specification C587).
Note 1--Specification C843 contains application procedures for gypsum veneer plaster, and specification C 844 contains application procedures for gypsum base for veneer plaster.
1.2 The values stated in either inch-pound or SI (metric) units are to be regarded separately as the standard. Within the text, the SI units are shown in brackets. The values stated in each system shall be used independently of the other. Values from the two systems shall not be combined.
1.3 The text of this standard references notes and footnotes that provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of the standard.

General Information

• Status: Historical
• Publication Date: 09-May-2001
• ICS: 91.100.10 - Cement. Gypsum. Lime. Mortar
• Technical Committee: C11 - Gypsum and Related Building Materials and Systems
• Drafting Committee: C11.01 - Specifications and Test Methods for Gypsum Products

Relations

• Replaced By: ASTM C588/C588M-01 - Standard Specification for Gypsum Base for Veneer Plasters
• Effective Date: 10-May-2001
• Referred By: ASTM C11-23 - Standard Terminology Relating to Gypsum and Related Building Materials and Systems
• Effective Date: 10-May-2001

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
Designation: C 588/C 588M – 99
AMERICAN SOCIETY FOR TESTING AND MATERIALS
100 Barr Harbor Dr., West Conshohocken, PA 19428
Reprinted from the Annual Book of ASTM Standards. Copyright ASTM
Standard Specification for
1
Gypsum Base for Veneer Plasters
This standard is issued under the fixed designation C 588/C 588M; 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.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope * noncombustible core, essentially gypsum, surfaced with paper
bonded to the core.
1.1 This specification covers types of gypsum base that are
4.2 Foil-backed gypsum base for veneer plasters shall con-
designed to be used as a base for application of veneer plaster.
sist of gypsum base for veneer plasters with a layer of
1.2 The values stated in either inch-pound or SI (metric)
aluminum foil laminated to the back surface.
units are to be regarded separately as the standard. Within the
4.3 Gypsum base for veneer plaster, Type X (special fire-
text, the SI units are shown in brackets. The values stated in
resistant) designates gypsum base complying with this speci-
each system shall be used independently of the other. Values
fication that provides not less than 1-h fire-resistance for boards
from the two systems shall not be combined.
5 3 1
⁄8 in. [15.9 mm] thick or ⁄4 h fire-resistance for boards ⁄2 in.
1.3 The text of this standard references notes and footnotes
[12.7 mm] thick, applied parallel with and on each side of load
that provide explanatory material. These notes and footnotes
bearing 2 by 4 wood studs spaced 16 in. [406 mm] on center
(excluding those in tables and figures) shall not be considered
7
with 6d coated nails, 1 ⁄8 in. [48 mm] long, 0.0915 in. [2.32
as requirements of the standard.
1
mm] diameter shank, ⁄4 in. [6.4 mm] diameter heads, spaced 7
2. Referenced Documents in. [178 mm] on center with gypsum base joints staggered 16
in. [406 mm] on each side of the partition and tested in
2.1 ASTM Standards:
accordance with Test Methods E 119.
C 11 Terminology Relating to Gypsum and Related Build-
2
ing Materials and Systems
NOTE 1—Consult manufacturers for independent test data on assembly
C 473 Test Methods for Physical Testing of Gypsum Panel
details and fire resistance classifications for other types of construction.
2
Products See official fire test reports for assembly particulars, materials, and
classifications.
C 645 Specification for Nonstructural Steel Framing Mem-
2
bers
5. Physical Requirements
C 1264/C 1264M Specification for Sampling, Inspection,
5.1 Specimens shall be taken from the samples obtained in
Rejection, Certification, Packaging, Marking, Shipping,
2
accordance with Specification C 1264/C 1264M.
Handling, and Storage of Gypsum Board
5.2 Specimens shall be tested in accordance with Test
E 96 Test Methods for Water Vapor Transmission of Mate-
3
Methods C 473.
rials
5.2.1 Flexural Strength—The specimens shall be tested face
E 119 Test Methods for Fire Tests of Building Construction
4 up and face down. The average breaking load shall be not less
and Materials
than the following:
3. Terminology
Method A Method B
3.1 Definitions—Definitions of terms used in this specifica-
Load, lbf [N] Load, lbf [N]
tion shall be in accordance with C 11.
Load, lbf [N] Bearing Edges Load, lbf [N] Bearing Edges
Bearing Edges Parallel to Bearing Edges Parallel to
Thickness, Across Fiber Fiber of Across Fiber Fiber of
4. Materials and Manufacture
in. [mm] of Surfacing Surfacing of Surfacing Surfacing
4.1 Gypsum base for veneer plaster shall consist of a
3
⁄8 [9.5] 80 [356] 30 [133] 77 [343] 26 [116]
1
⁄2 [12.7] 110 [489] 40 [178] 107 [476] 36 [160]
1
5
This specification is under the jurisdiction of ASTM Committee C-11 on ⁄8 [15.9] 150 [667] 50 [222] 147 [654] 46 [205]
Gypsum and Related Building Materials and Systems, and is the direct responsi-
5.2.2 Humidified Deflection—Specimens shall have an av-
bility of Subcommittee C11.01 on Specifications and Test Methods for Gypsum
Products. erage deflection of no more than the following:
Current edition approved June 10, 1999. Published July 1999. Originally
Humidified Deflection,
published as C 588 – 66 T. Last previous edition C 588 – 95a.
Thickness, in. [mm] Eighths of an inch [mm]
2
Annual Book of ASTM Standards, Vol 04.01.
3
Annual Book of ASTM Standards, Vol 04.06. 3
⁄8 [9.5] 15 [48]
4
Annual Book of ASTM Standards, Vol 04.07.
*A Summary of Changes section appears at the end of this standard.
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C 588/C 588M
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1 6 ⁄32 in. [60.8 mm] from the nominal thicknes
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