Designation:C1776/C1776M−17StandardSpecificationforWet-CastPrecastModularRetainingWallUnits1ThisstandardisissuedunderthefixeddesignationC1776/C1776M;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thisspecificationcoverswet-castprecastmodularre-tainingwallunitscastfromfirst-purposeconcretewithorwithouttheinclusionofsteelreinforcement.Theprecastunitscoveredbythisspecificationaremachine-placedunitsintendedforuseintheconstructionofdrystackedmodularretainingwallsystems.1.2Thetextofthisstandardreferencesnotesandfootnotesthatprovideexplanatorymaterial.Thesenotesandfootnotes(excludingthoseintablesandfigures)shallnotbeconsideredasrequirementsofthestandard.1.3Units—Thevaluesstatedineitherinch-poundunitsorSIunitsaretoberegardedseparatelyasstandard.Withinthetextofthespecification,theSIunitsareshowninbrackets.Thevaluesstatedineachsystemarenotexactequivalents.Therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnon-conformancewiththestandard.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2A615/A615MSpecificationforDeformedandPlainCarbon-SteelBarsforConcreteReinforcementA706/A706MSpecificationforDeformedandPlainLow-AlloySteelBarsforConcreteReinforcementA767/A767MSpecificationforZinc-Coated(Galvanized)SteelBarsforConcreteReinforcementA775/A775MSpecificationforEpoxy-CoatedSteelRein-forcingBarsA884/A884MSpecificationforEpoxy-CoatedSteelWireandWeldedWireReinforcementA934/A934MSpecificationforEpoxy-CoatedPrefabricatedSteelReinforcingBarsA1055/A1055MSpecificationforZincandEpoxyDualCoatedSteelR...