ASTM C317/C317M-00(2019)

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Designation: C317/C317M − 00 (Reapproved 2019)
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 U.S. Department of Defense.
1. Scope 4. Materials and Manufacture
4.1 Gypsum concrete shall consist of calcined gypsum to
1.1 This specification covers mill-mixed gypsum concrete,
consisting essentially of calcined gypsum and suitable which is added aggregates, wood chips, or wood shavings in
proportion to meet the applicable requirements of this specifi-
aggregate, requiring the addition of water only at the job site.
Gypsum concrete is intended for use in the construction of cation.
poured-in-place roof decks or slabs. Two classes, based on the
4.2 Calcined Gypsum—Specification C28/C28M.
compressive strength and density, are covered.
4.3 Aggregates—Specification C35.
1.2 The values stated in either inch-pound units or SI units
4.4 Wood Chips or Wood Shavings, shall be dry wood,
are to be regarded separately as standard. The values stated in
uniform and clean in appearance, passing a 1-in. [25-mm]
each system may not be exact equivalents; therefore, each
sieve, and not more than ⁄16 in. [1.5 mm] thick.
system shall be used independently of the other. Combining
5. Physical Properties
values from the two systems may result in nonconformance
with the standard.
5.1 Setting Time—Gypsum concrete shall set in not less than
20 min and not more than 90 min.
1.3 This international standard was developed in accor-
dance with internationally recognized principles on standard-
5.2 Compressive Strength—Gypsum concrete shall have the
ization established in the Decision on Principles for the
following compressive strength for the respective classes:
Development of International Standards, Guides and Recom-
mendations issued by the World Trade Organization Technical
Class Compressive Strength, min,
Barriers to Trade (TBT) Committee.
psi [MPa]
A 500 [3.5]
2. Referenced Documents
B 1000 [7.0]
2.1 ASTM Standards:
C11 Terminology Relating to Gypsum and Related Building
5.3 Density—Gypsum concrete, Class A, shall have a den-
Materials and Systems
3 3
sity of not more than 60 lb/ft [960 kg/m ].
C28/C28M Specification for Gypsum Plasters
C35 Specification for Inorganic Aggregates for Use in Gyp-
6. Sampling
sum Plaster
6.1 Randomly select at least 1 % of the packages, but not
C472 Test Methods for Physical Testing of Gypsum, Gyp-
less than five packages. Take samples from both the outer
sum Plasters and Gypsum Concrete
portion and the center of each package. Mix the samples so
3. Terminology obtained to provide a composite sample of not less than 15 lb
[6.5 kg]. Immediately place the sample in a clean, dry, airtight
3.1 Definitions of terms shall be in accordance with Termi-
container for delivery to the laboratory.
nology C11.
7. Test Methods
This specification is under the jurisdiction of ASTM Committee C11 on
7.1 Determine the physical properties of gypsum concrete in
Gypsum and Related Building Materials and System
...

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: C317/C317M − 00 (Reapproved 2015) C317/C317M − 00 (Reapproved 2019)
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 U.S. Department of Defense.
1. 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.
1.3 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
2.1 ASTM Standards:
C11 Terminology Relating to Gypsum and Related Building Materials and Systems
C28/C28M Specification for Gypsum Plasters
C35 Specification for Inorganic Aggregates for Use in Gypsum Plaster
C472 Test Methods for Physical Testing of Gypsum, Gypsum Plasters and Gypsum Concrete
3. Terminology
3.1 Definitions of terms shall be in accordance with Terminology C11.
4. Materials and Manufacture
4.1 Gypsum concrete shall consist of calcined gypsum to which is added aggregates, wood chips, or wood shavings in
proportion to meet the applicable requirements of this specification.
4.2 Calcined Gypsum—Specification C28/C28M.
4.3 Aggregates—Specification C35.
4.4 Wood Chips or Wood Shavings, shall be dry wood, uniform and clean in appearance, passing a 1-in. [25-mm] sieve, and not
more than ⁄16 in. [1.5 mm] thick.
5. Physical Properties
5.1 Setting Time—Gypsum concrete shall set in not less than 20 min and not more than 90 min.
5.2 Compressive Strength—Gypsum concrete shall have the following compressive strength for the respective classes:
This specification is under the jurisdiction of ASTM Committee C11 on Gypsum and Related Building Materials and Systemsand is the direct responsibility of
Subcommittee C11.01 on Specifications and Test Methods for Gypsum Products.
Current edition approved Oct. 1, 2015Oct. 1, 2019. Published October 2015October 2019. Originally approved in 1953. Last previous edition approved in 20102015 as
C317 – 00 (2010). – 00 (2015). DOI: 10.1520/C0317_C0317M-00R15.10.1520/C0317_C0317M-00R19.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.or
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