ASTM_D_6497_-_D_6497M_-_02_2015e1.pdf

Designation:D6497/D6497M02(Reapproved 2015)1Standard Guide forMechanical Attachment of Geomembrane to Penetrations orStructures1This standard is issued under the fixed designation D6497/D6497M;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.1NOTEDesignation was changed to dual,units information was corrected and 2.1 was inserted editorially in June 2015.1.Scope1.1 This guide covers procedures that can be employed tomechanically attach fabricated geomembranes to structures,pipes,etc.1.2 This guide does not address all problems or situations ageomembrane installer or design engineer may face in theattachment of geomembranes to structures,pipes,etc.The solepurpose of this standard guide is to point out typical problemswith geomembrane attachments and clearly state objectives ofeach component of the geomembrane attachment(s).1.3 This guide has been generated for geomembrane appli-cation(s);however,a geomembrane installer or designengineer,or both,may find portions of this guide applicable toother geosynthetics.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 limitations prior to use.2.Referenced Documents2.1 ASTM Standards:2C717 Terminology of Building Seals and SealantsC822 Terminology Relating to Concrete Pipe and RelatedProductsD4439 Terminology for GeosyntheticsD4848 Terminology Related to Force,Deformation andRelated Properties of TextilesF118 Definitions of Terms Relating to Gaskets2.2 EPA Document:3Quality Assurance and Quality Control for Waste Contain-ment Facilities,Technical Guidance Document,UnitedStates Environmental Protection Agency,EPA/600/R-93/182,September 19933.Terminology3.1 Definitions:3.1.1 banding strap,na flexible narrow strip of metal,plastic or other material,which compresses the geomembranearound a penetration by acting as a clamp around the penetra-tion.3.1.2 batten,na rigid narrow strip of metal,wood,plasticor other material which distributes the forces to compress thegeomembrane against a penetration or structure.3.1.3 boot,na factory or field fabricated geomembranewrap used to seal around a pipe penetration prior to attachment(see Fig.1).3.1.4 clamp,na flexible narrow strip of metal,plastic orother material,which compresses the geomembrane against apenetration by tightening the bolt(s)or screw(s)of the clamp(see Fig.2).3.1.5 concrete,na homogeneous mixture of portlandcement,aggregates,and water which may contain admixtures.(C822)3.1.6 gaskets,na material,which may be clamped be-tween contact surfaces that acts as a static seal.Gaskets are cut,formed,or molded into the desired configuration.They mayconsist of any of the following construction:one or more pliesof a sheet material;composites of dissimilar materials;andmaterials applied as a bead or other form to one or both matingfaces prior to assembly.(F118)1This guide is under the jurisdiction ofASTM Committee D35 on Geosyntheticsand is the direct responsibility of Subcommittee D35.10 on Geomembranes.Current edition approved May 1,2015.Published June 2015.Originallyapproved in 1999.Last previous edition approved in 2010 as D649702(2010).DOI:10.1520/D6497_D6497M-02R15E01.2For 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.3Available from U.S.Government Publishing Office,732 N.Capitol St.,NW,Washington,DC 20401-0001,http:/www.gpo.gov.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 3.1.7 geomembrane,nan essentially impermeable geosyn-thetic composed of one or more synthetic sheets.(D4439)3.1.8 rondel,na strip of polymeric material formed to ageometry,which is embedded and secured to a penetration orstructure(for example,concrete structure)(see Fig.3).3.1.9 sealantin building construction,a material that hasthe adhesive and cohesive properties to form a seal.(C717)3.1.10 torque,na movement(of forces)which produces ortends to produce rotation or torsion.(D4848)3.1.11 void space,nin engineered structures,space(s)between the geomembrane and penetration or structure,whichallow liquid or vapor migration,or allow the geomembrane todeform into the space(s