ASTM D6817-2006a Standard Specification for Rigid Cellular Polystyrene Geofoam《刚性泡沫聚苯乙烯土工泡沫材料的标准规范》.pdf
《ASTM D6817-2006a Standard Specification for Rigid Cellular Polystyrene Geofoam《刚性泡沫聚苯乙烯土工泡沫材料的标准规范》.pdf》由会员分享,可在线阅读,更多相关《ASTM D6817-2006a Standard Specification for Rigid Cellular Polystyrene Geofoam《刚性泡沫聚苯乙烯土工泡沫材料的标准规范》.pdf(3页珍藏版)》请在麦多课文档分享上搜索。
1、Designation: D 6817 06aStandard Specification forRigid Cellular Polystyrene Geofoam1This standard is issued under the fixed designation D 6817; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A number in
2、parentheses indicates the year of last reapproval. Asuperscript epsilon (e) 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 specifi
3、cation 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. Addit
4、ionaldesign considerations may include thermal conductivity andbuoyancy. Guidelines regarding these end use considerationsare included in Appendix X1.1.4 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
5、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:2C 165 Test Method for Measuring Compressive Propertiesof Thermal InsulationsC 203 Test Methods for Breaking Load and Flex
6、ural Prop-erties of Block-Type Thermal InsulationC 303 Test Method for Dimensions and Density of Pre-formed Block and BoardType Thermal InsulationC 390 Practice for Sampling and Acceptance of ThermalInsulation LotsC 578 Specification for Rigid, Cellular PolystyreneThermalInsulationD 1621 Test Method
7、 for Compressive Properties Of RigidCellular PlasticsD 1622 Test Method forApparent Density of Rigid CellularPlasticsD 2863 Test Method for Measuring the Minimum OxygenConcentration to Support Candle-Like Combustion ofPlastics (Oxygen Index)3. Terminology3.1 Definitions:3.1.1 Terms used in this spec
8、ification are defined in Termi-nology D 4439.3.1.2 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 minimu
9、m density of XXkg/m3(lb/ft3).3.2.2 XPS, XXnumber designation for extruded polysty-rene geofoam Type(s) having a minimum density of XXkg/m3(lb/ft3).3.2.3 RCPSletter designation for EPS and XPS rigidcellular polystyrene geofoam covered by this specification.4. Ordering Information4.1 Acquisition docum
10、ents shall specify the following:4.1.1 Title, number and year of this specification.4.1.2 Type, as per Table 1, or minimum density required.4.1.3 Total product volume required of each Type, orminimum density.5. Materials and Manufacture5.1 RCPS geofoam shall be formed by the expansion ofpolystyrene
11、resin beads or granules in a molding process (EPS)or by the expansion of polystyrene base resin in an extrusionprocess (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
12、organic materialand is considered combustible. It should not be exposed toflames or other ignition sources.1This 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 appro
13、ved July 1, 2006. Published August 2006. Originallyapproved in 2002. Last previous edition approved in 2006 as D 6817 06.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refe
14、r to the standards Document Summary page onthe ASTM website.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.6. Qualification Requirements6.1 The physical properties listed in Table 1 constitute theminimum product qualification requir
15、ements for commonlymanufactured types of RCPS geofoam.6.2 RCPS Geofoam TypesIt is the users responsibility tospecify the required Type as in Table 1 and to obtain supportingdocumentation regarding physical properties from the materialsupplier.6.3 Combustibility RequirementsAll RCPS geofoam shallcont
16、ain sufficient flame retardants to meet a minimum OxygenIndex as required in Table 1.6.4 CuringUnless otherwise specified in the contract,RCPS geofoam shall be cured for a minimum of 24 h beforedelivery and inspection.7. Availability and Dimensional Tolerance7.1 AvailabilityThe RCPS geofoam material
17、s covered bythis specification are commonly available in the size rangeshown in Table 2. Specific RCPS geofoam block dimensionsvary by manufacturer equipment characteristics.7.2 Dimensional ToleranceUnless otherwise specified,the acceptable length, width, thickness, flatness and squarenesstolerance
18、criteria on RCPS geofoam shall not exceed 6 0.5 %.8. Damage and Degradation8.1 DamageRCPS geofoam as delivered to the projectsite shall have no defects that will adversely affect its serviceand workability qualities. Material units that manifest unac-ceptable surface or volumetric damage shall be re
19、placed.8.1.1 Surface DamageDamage to load bearing RCPSgeofoam surfaces shall be limited to less than 20 % of theequivalent load bearing area of the unit.8.1.2 Volume DamageVolumetric damage of RCPS geo-foam shall be limited to less than 1 % of the volume of a singleunit.8.1.3 UV (Ultra-Violet) Degra
20、dationDiscoloration anddusting of RCPS geofoam caused by the extensive exposure tosunlight is a defect that will adversely affect its service and isgrounds for rejection. Refer to X1.6.9. Inspection9.1 SamplingUnless otherwise specified in the purchaseorder or contract, the material shall be sampled
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