1、Designation:D6817/D6817M17(Reapproved 2021)Standard Specification forRigid Cellular Polystyrene Geofoam1This standard is issued under the fixed designation D6817/D6817M;the number immediately following the designation indicates theyear of original adoption or,in the case of revision,the year of last
2、 revision.A number in parentheses indicates the year of lastreapproval.A superscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This specification covers the types,physical properties,and dimensions of rigid cellular polystyrene intended for use asgeofoam
3、.1.2 This specification does not cover the layout,placement,and workmanship for proper installation and performance ofrigid cellular polystyrene geofoam.1.3 Rigid cellular polystyrene geofoam covered by thisspecification may need protection from certain chemicals,environmental exposure,and concentra
4、ted loads.Additionaldesign considerations may include thermal conductivity andbuoyancy.Guidelines regarding these end-use considerationsare included in Appendix X1.1.4 The values stated in either SI units or inch-pound unitsare to be regarded separately as standard.The values stated ineach system ar
5、e not necessarily exact equivalents;therefore,toensure conformance with the standard,each system shall beused independently of the other,and values from the twosystems shall not be combined.1.5 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is t
6、heresponsibility of the user of this standard to establish appro-priate safety,health,and environmental practices and deter-mine the applicability of regulatory limitations prior to use.1.6 This international standard was developed in accor-dance with internationally recognized principles on standar
7、d-ization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2C165 Test Method for Measuring Compressive Propertie
8、s ofThermal InsulationsC203 Test Methods for Breaking Load and Flexural Proper-ties of Block-Type Thermal InsulationC303 Test Method for Dimensions and Density of Pre-formed Block and BoardType Thermal InsulationC390 Practice for Sampling and Acceptance of ThermalInsulation LotsC578 Specification fo
9、r Rigid,Cellular Polystyrene ThermalInsulationD1621 Test Method for Compressive Properties of RigidCellular PlasticsD1622/D1622M Test Method for Apparent Density of RigidCellular PlasticsD2863 Test Method for Measuring the Minimum OxygenConcentration to Support Candle-Like Combustion ofPlastics(Oxyg
10、en Index)D4439 Terminology for GeosyntheticsD7557/D7557M Practice for Sampling of Expanded Poly-styrene Geofoam SpecimensE177 Practice for Use of the Terms Precision and Bias inASTM Test MethodsE691 Practice for Conducting an Interlaboratory Study toDetermine the Precision of a Test Method3.Terminol
11、ogy3.1 Definitions:3.1.1 Terms used in this specification are defined in Termi-nology D4439.3.1.2 geofoamblock or planar rigid cellular foam poly-meric material used in geotechnical engineering applications.3.2 Definitions of Terms Specific to This Standard:3.2.1 EPS,XXnumber designation for expande
12、d polysty-rene geofoam type(s)having a minimum density of XX kg/m3lb/ft3.3.2.2 RCPSletter designation for EPS and XPS rigidcellular polystyrene geofoam covered by this specification.3.2.3 XPS,XXnumber designation for extruded polysty-rene geofoam type(s)having a minimum density of XX kg/m3lb/ft3.1Th
13、is specification is under the jurisdiction of ASTM Committee D35 onGeosynthetics and is the direct responsibility of Subcommittee D35.06 on Geosyn-thetic Specifications.Current edition approved May 1,2021.Published May 2021.Originallyapproved in 2002.Last previous edition approved in 2017 as D6817/D
14、6817M 17.DOI:10.1520/D6817_D6817M-17R21.2For 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.Copyright ASTM Internation
15、al,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards,Guides and R
16、ecommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.14.Ordering Information4.1 Acquisition documents shall specify the following:4.1.1 Title,number,and year of this specification.4.1.2 Type,as per Table 1.4.1.3 Total product volume required of each type.5.Materials and Manufacture5.1 RCPS geofoam shall be formed by the expansion ofpolystyrene resin beads or granules in a molding process(EPS)or by the expansion of polystyrene base resin in an extrusionp