Designation:D6684−04(Reapproved2010)StandardSpecificationforMaterialsandManufactureofArticulatingConcreteBlock(ACB)RevetmentSystems1ThisstandardisissuedunderthefixeddesignationD6684;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1ThepurposeofthisStandardistoprovidespecificationsforarticulatingconcreteblock(ACB)revetmentsystemstruc-turalcomponents,materialcompositionandphysicalproper-ties,manufacturingmethodsandtestingrequirements.1.2Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatoryrequirementspriortouse.2.ReferencedDocuments2.1ASTMStandards:2C33SpecificationforConcreteAggregatesC39/C39MTestMethodforCompressiveStrengthofCylin-dricalConcreteSpecimensC42/C42MTestMethodforObtainingandTestingDrilledCoresandSawedBeamsofConcreteC67TestMethodsforSamplingandTestingBrickandStructuralClayTileC140TestMethodsforSamplingandTestingConcreteMasonryUnitsandRelatedUnitsC150SpecificationforPortlandCementC207SpecificationforHydratedLimeforMasonryPur-posesC331SpecificationforLightweightAggregatesforConcreteMasonryUnitsC595SpecificationforBlendedHydraulicCementsC618SpecificationforCoalFlyAshandRaworCalcinedNaturalPozzolanforUseinConcreteC666/C666MTestMethodforResistanceofConcretetoRapidFreezingandThawingC1262TestMethodforEvaluatingtheFreeze-ThawDura-bilityofDry-CastSegmentalRetainingWallUnitsandRelatedConcreteUnitsD4533TestMethodforTrapezoidTearingStrengthofGeo-textilesD4632TestMethodforGrabBreakingLoadandElongationofGeotextilesD4833TestMethodforIndexPunctureResistanceofGeomembranesandRelatedProducts2.2OtherDocuments:AmericanAssociationofStateHighwayTransportationOfficials(AASHTO),1995,“StandardSpecifica...
