ASTM_D_6817_-_D_6817M_-_15.pdf

Designation:D6817/D6817M15Standard 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 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 propertiesand dimensions of rigid cellular polystyrene intended for use asgeofoam.1.2 This specification does not cover the layout,placementand 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 concentrated 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 may not be exact equivalents;therefore,eachsystem shall be used independently of the other.Combiningvalues from the two systems may result in non-conformancewith the standard.1.5 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory requirements prior to use.2.Referenced Documents2.1 ASTM Standards:2C165 Test Method for Measuring Compressive Properties 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 for 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(Oxygen Index)D4439 Terminology for GeosyntheticsE177 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.Terminology3.1 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 expanded 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/ft3.4.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 extrusion1This specification is under the jurisdiction of ASTM Committee D35 onGeosynthetics and is the direct responsibility of Subcommittee D35.03 on Perme-ability and Filtration.Current edition approved Jan.1,2015.Published January 2015.Originallyapproved in 2002.Last previous edition approved in 2013 as D6817/D6817M13a.DOI:10.1520/D6817_D6817M-15.2For 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 International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 process(XPS).RCPS geofoam may be manufactured withreprocessed polystyrene foam(regrind).5.2 RCPS geofoam shall be of uniform density and haveessentially closed cells.RCPS geofoam is an organic materialand is considered combustible.It should not be exposed toflames or other ignition sources.6.Qualification Requirements6.1 The physical properties listed in Table 1 constitute theminimum product qualification requirements for commonlymanufactured types of RCPS geofoam.The compressive resis-tance at 1%strain is typically within the elastic limit of thegeofoam product types in Table 1 and is accepted as thecompressive resistance to limit long-term deformation understructural load.6.2 RCPS Geofoam TypesIt is the users responsibility tospecify the required