1、Designation:D810518Standard Guide forUse and Application of Geosynthetic ReinforcementReduction Factor Test Results1This standard is issued under the fixed designation D8105;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of
2、 last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This guide presents a description of how to use testresults from reduction factor test reports for reinforcementgeosynthet
3、ics.It is based solely on testing and reportingrequirements as established in American Association of StateHighway and Transportation Officials(AASHTO)standardAASHTO R 69-15,Standard Practice for Determination ofLong-TermStrengthforGeosyntheticReinforcement.AASHTO R 69-15 is used to determine the lo
4、ng-term allow-able material strength,Tal,that is solely product propertyperformance dependant.1.2 This guide is intended to assist designers and users ofreinforcement geosynthetics when reviewing reports of reduc-tion factor testing efforts.This guide is not intended to replaceeducation or experienc
5、e,or other alternative design procedures.This guide is not intended to represent or replace the standardof care by which the adequacy of a given professional servicemust be judged,nor should this document be applied withoutconsideration of a projects many unique aspects.Not allaspects of this guide
6、may be applicable in all circumstances.The word“standard”in the title of this document means onlythat the document has been approved through the ASTMconsensus process.1.3 The values stated in either SI units or inch-pound unitsare to be regarded separately as standard.The values stated ineach system
7、 may not be exact equivalents;therefore,eachsystem shall be used independently of the other.Combiningvalues from the two systems may result in nonconformancewith the standard.1.4 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibilit
8、y of the user of this standard to establish appro-priate safety,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 estab
9、lished in the Decision on Principles for theDevelopment of International Standards,Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2D4355/D4355M Test Method for Deterioration of Geotex-tiles by Expos
10、ure to Light,Moisture and Heat in a XenonArc-Type ApparatusD4595 Test Method for Tensile Properties of Geotextiles bythe Wide-Width Strip MethodD4603 Test Method for Determining Inherent Viscosity ofPoly(Ethylene Terephthalate)(PET)by Glass CapillaryViscometerD5262 Test Method for Evaluating the Unc
11、onfined TensionCreep and Creep Rupture Behavior of GeosyntheticsD5721 Practice for Air-Oven Aging of Polyolefin Geomem-branesD5818 Practice for Exposure and Retrieval of Samples toEvaluate Installation Damage of GeosyntheticsD6637/D6637M Test Method for Determining Tensile Prop-erties of Geogrids by
12、 the Single or Multi-Rib TensileMethodD6992 Test Method for Accelerated Tensile Creep andCreep-Rupture of Geosynthetic Materials Based on Time-Temperature Superposition Using the Stepped IsothermalMethodD7409 Test Method for Carboxyl End Group Content ofPolyethylene Terephthalate(PET)Yarns2.2 AASHTO
13、 Standard:3AASHTO R 69-15 Standard Practice for Determination ofLong-Term Strength for Geosynthetic Reinforcement1This guide is under the jurisdiction ofASTM Committee D35 on Geosyntheticsand is the direct responsibility of Subcommittee D35.01 on Mechanical Properties.Current edition approved July 1
14、,2018.Published August 2018.Originallyapproved in 2018.DOI:10.1520/D8105-18.2For 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 AST
15、M website.3Available from American Association of State Highway and TransportationOfficials(AASHTO),444 N.Capitol St.,NW,Suite 249,Washington,DC 20001,http:/www.transportation.org.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United StatesThis interna
16、tional standard was developed 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.1 2.3 ISO Standards:4ISOEN13437 GeotextilesandGeotextile-RelatedProductsMethod for Installing and Extracting Samplesin Soil,and Testing Specimens in LaboratoryISOEN13438 GeotextilesandGeotextile-Rel