1、Designation: C 317/C 317M 00 (Reapproved 2005)Standard Specification forGypsum Concrete1This standard is issued under the fixed designation C 317/C 317M; the number immediately following the designation indicates the yearof original adoption or, in the case of revision, the year of last revision. A
2、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*1.1 This specification covers mill-mixed gypsum concrete
3、,consisting essentially of calcined gypsum and suitable aggre-gate, requiring the addition of water only at the job site.Gypsum concrete is intended for use in the construction ofpoured-in-place roof decks or slabs. Two classes, based on thecompressive strength and density, are covered.1.2 The value
4、s stated in either inch-pound units or SI unitsare to be regarded separately as standard. The values stated ineach system may not be exact equivalents; therefore, eachsystem shall be used independently of the other. Combiningvalues from the two systems may result in nonconformancewith the standard.2
5、. Referenced Documents2.1 ASTM Standards:2C11 Terminology Relating to Gypsum and Related Build-ing Materials and SystemsC28 Specification for Gypsum PlastersC35 Specification for Inorganic Aggregates for Use inGypsum PlasterC 472 Test Methods for Physical Testing of Gypsum, Gyp-sum Plasters and Gyps
6、um Concrete3. Terminology3.1 Definitions of terms shall be in accordance with Termi-nology C11.4. Materials and Manufacture4.1 Gypsum concrete shall consist of calcined gypsum towhich is added aggregates, wood chips, or wood shavings inproportion to meet the applicable requirements of this specifi-c
7、ation.4.2 Calcined GypsumSpecification C28.4.3 AggregatesSpecification C35.4.4 Wood Chips or Wood Shavings, shall be dry wood,uniform and clean in appearance, passing a 1-in. 25-mmsieve, and not more than116 in. 1.5 mm thick.5. Physical Properties5.1 Setting TimeGypsum concrete shall set in not less
8、than 20 min and not more than 90 min.5.2 Compressive StrengthGypsum concrete shall have thefollowing compressive strength for the respective classes:Class Compressive Strength, min,psi MPaA 500 3.5B 1000 7.05.3 DensityGypsum concrete, Class A, shall have a den-sity of not more than 60 lb/ft3960 kg/m
9、3.6. Sampling6.1 Randomly select at least 1 % of the packages, but notless than five packages. Take samples from both the outerportion and the center of each package. Mix the samples soobtained to provide a composite sample of not less than 15 lb6.5 kg. Immediately place the sample in a clean, dry,
10、airtightcontainer for delivery to the laboratory.7. Test Methods7.1 Determine the physical properties of gypsum concrete inaccordance with Test Methods C 472.7.1.1 Determine the setting time by the Vicat method.8. Inspection8.1 Inspection of the gypsum concrete shall be agreed uponbetween the purcha
11、ser and the supplier as part of the purchaseagreement.9. Rejection9.1 Rejection of gypsum concrete that fails to conform tothe requirements of this specification shall be reported to theproducer or supplier promptly and in writing. The notice of1This specification is under the jurisdiction of ASTM C
12、ommittee C11 onGypsum and Related Building Materials and is the direct responsibility ofSubcommittee C11.01 on Specifications and Test Methods for Gypsum Products.Current edition approved May 1, 2005. Published June 2005. Originallyapproved in 1953. Last previous edition approved in 2000 as C 317 00
13、.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.1*A Summary of Changes section appears at the end of this st
14、andard.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.rejection shall contain a statement documenting how thegypsum concrete has failed to conform to the requirements ofthis specification.10. Certification10.1 When specified in the p
15、urchase agreement, a produc-ers or suppliers report shall be furnished at the time ofshipment certifying that the product is in compliance with thisspecification.11. Packaging and Marking11.1 Gypsum concrete shall be shipped dry and free oflumps.11.2 When shipped for resale, the following informatio
16、nshall be legibly marked on each package or on a tag of suitablesize attached thereto:11.2.1 Name of the manufacturer or the seller,11.2.2 Brand,11.2.3 Description, and11.2.4 Net and gross weight of the package.12. Keywords12.1 aggregates; calcined gypsum; gypsum; gypsumconcreteSUMMARY OF CHANGESCom
17、mittee C11 has identified the location of selected changes to this specification since the last issue,C 317/C 317M 98, that may impact the use of this specification. (Approved August 10, 2000)(1) The designation was changed to a dual inch-pound/SIstandard.(2) Paragraph 1.2 was revised to designate a
18、 dual inch-pound/SI standard.(3) Paragraphs 4.4, 5.2, 5.3, and 6.1 were revised to reflect ametric conversion.(4) All SI units were placed in brackets.ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Use
19、rs of this standard are expressly advised that determination of the validity of any such patent rights, and the riskof infringement of such rights, are entirely their own responsibility.This standard is subject to revision at any time by the responsible technical committee and must be reviewed every
20、 five years andif not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of theresponsible technic
21、al committee, which you may attend. If you feel that your comments have not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org).C 317/C 317M 00 (2005)2
