TAILIEUCHUNG - Designation: C 317/C 317M – 00 - Gypsum Concrete1

This standard is issued under the fixed designation C 317/C 317M; 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. | ij Designation C 317 C 317M - 00 Standard Specification for Gypsum Concrete1 This standard is issued under the fixed designation c 317 C 31 7Mthe numbef 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 This specification covens lmll- lm c li gypsum concrdc. 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. 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. 2. Referenced Documents ASTM Standards C 11 Terminology Relating to Gypsum and Related Building Materials and Systems2 C 28 Specification for Gypsum Pll st e 2 C 35 Speci ínìi n for Inorganic Aggregaaes for Use in Gypsum llaster2 C 472 Test Methods for Physical Testing of Gypsum Gypsum llasters and Gypsum Concrete2 3. Terminology Defimtions of terms shall be in accordance wiili Tenm-nology C 11. 4. Materials and Manufacture 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 speci -cation. Calcined Gypsum Specification C 28. Aggregates Specification C 35. Wood Chips or Wood Shavings shall be dry wood uniform and clean in appearance passing a 1-in. 25-mm sieve

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