1、Designation:D700808(Reapproved 2022)Standard Specification forGeosynthetic Alternate Daily Covers1This standard is issued under the fixed designation D7008;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A n
2、umber in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This specification covers the requirements for reusableand nonreusable geosynthetic alternate daily covers(ADCs)used on the working face of
3、municipal solid waste landfills(MSWLFs).Geosynthetic ADCs include a wide range ofproducts including,but not limited to:reinforced film,unrein-forced film,reinforced sheet,unreinforced sheet,coatedgeotextile,and uncoated geotextile.1.2 This standard addresses the base ADC materials anddoes not addres
4、s grommets,straps,or other fabricated parts.1.3 The values stated in SI units are to be regarded as thestandard.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 standard to establish appro-priate safety
5、,health,and environmental practices and deter-mine the applicability of regulatory limitations prior to use.1.5 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of Inte
6、rnational Standards,Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2D882 Test Method for Tensile Properties of Thin PlasticSheetingD1004 Test Method for Tear Resistance(Graves Tear)ofPlastic Film an
7、d SheetingD4355/D4355M Test Method for Deterioration of Geotex-tiles by Exposure to Light,Moisture,and Heat in a XenonArc-Type ApparatusD4439 Terminology for GeosyntheticsD4533/D4533M TestMethodforTrapezoidTearingStrength of GeotextilesD4632/D4632M Test Method for Grab Breaking Load andElongation of
8、 GeotextilesD4833/D4833M Test Method for Index Puncture Resistanceof Geomembranes and Related ProductsE96/E96M Test Methods for Gravimetric Determination ofWater Vapor Transmission Rate of Materials2.2 Other Standards:National Fire Protection Association(NFPA)701 StandardMethods of Fire Tests for Fl
9、ame Propagation of TextilesGeosynthetic Research Institute(GRI)SpecificationGM11 Accelerated Weathering of Geomembranes using aFluorescent UVA-Condensation Exposure Device3.Terminology3.1 DefinitionsFor definitions of terms related togeosynthetics,refer to Terminology D4439.3.2 Definitions of Terms
10、Specific to This Standard:3.2.1 alternate daily cover,nan alternative to the tradi-tional 15-cm(6-in.)soil cover required by the USEPA forlandfill working faces to“control disease vectors,fires,odors,blowing litter,and scavenging,without presenting a threat tohuman health and the environment.”3.2.2
11、fire retardant,adjin geosynthetic ADCs,meeting therequirements of NFPA701,Method 1,Standard Method of FireTests for Flame Propagation of Textiles and Films.3.2.3 nonreusable,adjin geosynthetics,a fabric or filmintended to be placed once and then disposed of,discarded,orleft in place.3.2.4 reusable,a
12、djin geosynthetics,a fabric or membranematerial intended to be retrieved and installed more than onceto perform the cover function.3.2.5 working face,nthe area of a landfill in which wasteis actively being deposited.4.Classification of Geosynthetic ADCs4.1 NonreusableNonreusable geosynthetic ADCs co
13、nsistof disposable films or geotextiles,intended to be left in placewithout retrieval.Special equipment exists to facilitate theplacement and anchoring of these materials to cover the1This specification is under the jurisdiction of ASTM Committee D35 onGeosynthetics and is the direct responsibility
14、of Subcommittee D35.06 on Geosyn-thetic Specifications.Current edition approved May 1,2022.Published May 2022.Originallyapproved in 2003.Last previous edition approved in 2018 as D7008 08(2018).DOI:10.1520/D7008-08R22.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM
15、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 StatesThis international standard was develope
16、d in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.1working face of landfills.The cover may contain pro-degradantadditives to accelerate degradation within the waste to allowthe free flow of fluids and gases within the waste mass.Threeclasses of nonreusable ADCs are specified
