ASTM C317/C317M-00(2005)
(Specification)Standard Specification for Gypsum Concrete
Standard Specification for Gypsum Concrete
ABSTRACT
This specification covers mill-mixed gypsum concrete, consisting essentially of calcined gypsum and suitable aggregate, requiring the addition of water only at the job site. Gypsum concrete is intended for use in the construction of poured-in-place roof decks or slabs. Two classes, based on the compressive strength and density, are covered. Gypsum concrete shall consist of calcined gypsum to which are added aggregates, wood chips, or wood shavings in proportion to meet the applicable requirements of this specification. Test method in this specification shall be performed in order to determine the physical properties of the gypsum concrete. Setting time is determined by the Vicat method.
SCOPE
1.1 This specification covers mill-mixed gypsum concrete, consisting essentially of calcined gypsum and suitable aggregate, requiring the addition of water only at the job site. Gypsum concrete is intended for use in the construction of poured-in-place roof decks or slabs. Two classes, based on the compressive strength and density, are covered.
1.2 The values stated in either inch-pound units or SI units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the standard.
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Standards Content (Sample)
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation: C317/C317M – 00 (Reapproved 2005)
Standard Specification for
Gypsum Concrete
This standard is issued under the fixed designation C317/C317M; 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* 4.2 Calcined Gypsum—Specification C28/C28M.
4.3 Aggregates—Specification C35.
1.1 This specification covers mill-mixed gypsum concrete,
4.4 Wood Chips or Wood Shavings, shall be dry wood,
consisting essentially of calcined gypsum and suitable aggre-
uniform and clean in appearance, passing a 1-in. [25-mm]
gate, requiring the addition of water only at the job site.
sieve, and not more than ⁄16 in. [1.5 mm] thick.
Gypsum concrete is intended for use in the construction of
poured-in-place roof decks or slabs. Two classes, based on the
5. Physical Properties
compressive strength and density, are covered.
5.1 Setting Time—Gypsum concrete shall set in not less
1.2 The values stated in either inch-pound units or SI units
than 20 min and not more than 90 min.
are to be regarded separately as standard. The values stated in
5.2 CompressiveStrength—Gypsum concrete shall have the
each system may not be exact equivalents; therefore, each
following compressive strength for the respective classes:
system shall be used independently of the other. Combining
Class Compressive Strength, min,
values from the two systems may result in nonconformance
psi [MPa]
with the standard.
A 500 [3.5]
B 1000 [7.0]
2. Referenced Documents
2.1 ASTM Standards:
5.3 Density—Gypsum concrete, Class A, shall have a den-
C11 TerminologyRelatingtoGypsumandRelatedBuilding
3 3
sity of not more than 60 lb/ft [960 kg/m ].
Materials and Systems
C28/C28M Specification for Gypsum Plasters
6. Sampling
C35 Specification for Inorganic Aggregates for Use in
6.1 Randomly select at least 1 % of the packages, but not
Gypsum Plaster
less than five packages. Take samples from both the outer
C472 Test Methods for Physical Testing of Gypsum, Gyp-
portion and the center of each package. Mix the samples so
sum Plasters and Gypsum Concrete
obtained to provide a composite sample of not less than 15 lb
[6.5 kg]. Immediately place the sample in a clean, dry, airtight
3. Terminology
container for delivery to the laboratory.
3.1 Definitions of terms shall be in accordance with Termi-
nology C11.
7. Test Methods
7.1 Determinethephysicalpropertiesofgypsumconcretein
4. Materials and Manufacture
accordance with Test Methods C472.
4.1 Gypsum concrete shall consist of calcined gypsum to
7.1.1 Determine the setting time by the Vicat method.
which is added aggregates, wood chips, or wood shavings in
proportion to meet the applicable requirements of this specifi-
8. Inspection
cation.
8.1 Inspection of the gypsum concrete shall be agreed upon
between the purchaser and the supplier as part of the purchase
This specification is under the jurisdiction of ASTM Committee C11 on
agreement.
Gypsum and Related Building Materials and is the direct responsibility of
Subcommittee C11.01 on Specifications and Test Methods for Gypsum Produ
...
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