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    ASTM D6817 / D6817M - 15

    Standard Specification for Rigid Cellular Polystyrene Geofoam

    Active Standard ASTM D6817 / D6817M | Developed by Subcommittee: D35.03

    Book of Standards Volume: 04.13

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    This specification presents the types, physical properties, and dimensions of rigid cellular polystyrene (RCPS) intended for use as geofoam. This specification, however, does not address the layout, placement, and workmanship for proper installation and performance of the geofoams. RCPS geofoams shall be formed by the expansion of polystyrene resin beads or granules in a molding process (EPS), or by the expansion of polystyrene base resin in an extrusion process (XPS). They may also be manufactured with reprocessed polystyrene foam (regrind). The RCPS geofoams shall meet combustibility and curing requirements and, when tested, shall adhere to physical property requirements such as dimensions and density, compressive resistance, flexural strength, and oxygen index. Final products should also meet surface damage, volume damage, and UV degradation limits.

    This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.

    1. Scope

    1.1 This specification covers the types, physical properties and dimensions of rigid cellular polystyrene intended for use as geofoam.

    1.2 This specification does not cover the layout, placement and workmanship for proper installation and performance of rigid cellular polystyrene geofoam.

    1.3 Rigid cellular polystyrene geofoam covered by this specification may need protection from certain chemicals, environmental exposure, and concentrated loads. Additional design considerations may include thermal conductivity and buoyancy. Guidelines regarding these end use considerations are included in Appendix X1.

    1.4 The values stated in either SI units or inch-pound 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 non-conformance with the standard.

    1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory requirements prior to use.

    2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

    ASTM Standards

    C165 Test Method for Measuring Compressive Properties of Thermal Insulations

    C203 Test Methods for Breaking Load and Flexural Properties of Block-Type Thermal Insulation

    C303 Test Method for Dimensions and Density of Preformed Block and Board-Type Thermal Insulation

    C390 Practice for Sampling and Acceptance of Thermal Insulation Lots

    C578 Specification for Rigid, Cellular Polystyrene Thermal Insulation

    D1621 Test Method for Compressive Properties of Rigid Cellular Plastics

    D1622/D1622M Test Method for Apparent Density of Rigid Cellular Plastics

    D2863 Test Method for Measuring the Minimum Oxygen Concentration to Support Candle-Like Combustion of Plastics (Oxygen Index)

    D4439 Terminology for Geosynthetics

    E177 Practice for Use of the Terms Precision and Bias in ASTM Test Methods

    E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method

    ICS Code

    ICS Number Code 59.080.70 (Geotextiles); 83.100 (Cellular materials)

    UNSPSC Code

    UNSPSC Code 30121701(Geomesh)

    Referencing This Standard

    DOI: 10.1520/D6817_D6817M-15

    ASTM International is a member of CrossRef.

    Citation Format

    ASTM D6817 / D6817M-15, Standard Specification for Rigid Cellular Polystyrene Geofoam, ASTM International, West Conshohocken, PA, 2015,

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