Designation:C915−79(Reapproved2018)StandardSpecificationforPrecastReinforcedConcreteCribWallMembers1ThisstandardisissuedunderthefixeddesignationC915;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thisspecificationcoversopen-andclosed-faceprecastreinforcedconcretecribwallsintendedtoactasearth-retainingstructuresorasprotectionagainststreamencroachment.NOTE1—Thisspecificationisamanufacturingandpurchasespecifica-tiononly,withexamplesandsuggestionsforusage.Successfulperfor-manceofthisproductdependsontheproperselectionandassemblingofmembers,properfoundationandbearingmaterial,andconsiderationofbackfillheights,backfillmaterial,drainage,andotherengineeringandconstructionconsiderations.Thepurchaserofthecribwallmembersspecifiedhereiniscautionedthathemustproperlycorrelatethefieldrequirementswiththemembersselectedandprovideadequateinspectionattheconstructionsite.1.2Thevaluesstatedininch-poundunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.3Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2A370TestMethodsandDefinitionsforMechanicalTestingofSteelProductsA615/A615MSpecificationforDeformedandPlainCarbon-SteelBarsforConcreteReinforcementA616/A616MSpecificationforRail-SteelDeformedandPlainBarsforConcreteReinforcement(Withdrawn1999)3A617/A617MSpecificationforAxle-SteelDeformedandPlainBarsforConcreteReinforcement(Withdrawn1999)3C31/C31MPracticeforMakingandCuringConcreteTestSpecimensintheFieldC33/C33MSpecificationforConcreteAggregatesC39/C39MTestMethodforCompressiv...
