ASTM_A_974_-_97_2016.pdf

Designation:A97497(Reapproved 2016)Standard Specification forWelded Wire Fabric Gabions and Gabion Mattresses(Metallic-Coated or Polyvinyl Chloride(PVC)Coated)1This standard is issued under the fixed designation A974;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of 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 specification covers gabions and gabion mattressesproduced from metallic-coated welded wire fabric,andmetallic-coated wire for spiral binders,lacing wire,and stiff-eners used to assemble the product.The metallic-coated fabricmay be polyvinyl chloride(PVC)coated after fabrication.Thespiral binders,lacing wire,and stiffeners may be PVC coatedafter metallic coating.Polyvinyl chloride hereinafter will bedesignated as PVC.1.2 Welded wire fabric for gabions and gabion mattresses isproduced in five styles,based on the kind of coating,asdescribed in Section 4.1.3 The values stated in inch-pound units are to be regardedas the standard.The values given in parentheses are forinformation only.1.4 This specification references notes and footnotes whichprovide explanatory material.These notes and footnotes(ex-cluding those in tables and figures)shall not be considered asrequirements of this specification.1.5 The following safety hazards caveat pertains only to thetest methods portion,Section 13,of this specification:Thisstandard does not purport to address all of the safety concerns,if any,associated with its use.It is the responsibility of the userof this standard to establish appropriate safety and healthpractices and determine the applicability of regulatory limita-tions prior to use.2.Referenced Documents2.1 ASTM Standards:2A90/A90M Test Method for Weight Mass of Coating onIron and Steel Articles with Zinc or Zinc-Alloy CoatingsA185/A185M SpecificationforSteelWeldedWireReinforcement,Plain,for Concrete(Withdrawn 2013)3A370 Test Methods and Definitions for Mechanical Testingof Steel ProductsA428/A428M Test Method for Weight Mass of Coating onAluminum-Coated Iron or Steel ArticlesA641/A641M Specification for ZincCoated(Galvanized)Carbon Steel WireA809 Specification for Aluminum-Coated(Aluminized)Carbon Steel WireA853 Specification for Steel Wire,Carbon,for General UseA856/A856M Specification for Zinc-5%Aluminum-Mischmetal Alloy-Coated Carbon Steel WireA902 Terminology Relating to Metallic Coated Steel Prod-uctsB117 Practice for Operating Salt Spray(Fog)ApparatusD638 Test Method for Tensile Properties of PlasticsD746 Test Method for Brittleness Temperature of Plasticsand Elastomers by ImpactD792 Test Methods for Density and Specific Gravity(Rela-tive Density)of Plastics by DisplacementD1242 Test Methods for Resistance of Plastic Materials toAbrasion(Withdrawn 2003)3D1499 Practice for Filtered Open-Flame Carbon-Arc Expo-sures of PlasticsD2240 Test Method for Rubber PropertyDurometer Hard-nessG23 Practice for Operating Light-Exposure Apparatus(Carbon-Arc Type)With and Without Water for Exposureof Nonmetallic Materials(Withdrawn 2000)33.Terminology3.1 DefinitionsRefer to Terminology A902 for generalterminology relating to metallic-coated steel products.3.2 Definitions of Terms Specific to This Standard:3.2.1 gabion,na wire fabric container,uniformlypartitioned,of variable size,interconnected with other similarcontainers,and filled with stone at the site of use,to formflexible,permeable,monolithic structures such as retaining1This specification is under the jurisdiction of ASTM Committee A05 onMetallic-Coated Iron and Steel Products and is the direct responsibility of Subcom-mittee A05.12 on Wire Specifications.Current edition approved May 1,2016.Published June 2016.Originallyapproved in 1997.Last previous edition approved in 2011 as A974-97(2011).DOI:10.1520/A0974-97R16.2For 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.3The last approved version of this historical standard is referenced onwww.astm.org.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 walls,sea walls,channel linings,revetments,and weirs forerosion control(see Fig.1).Typical gabion sizes are shown inTable 1.3.2.2 gabion mattress,na gabion with relatively smallheight in relation to the lateral dimensions,generally used forlining channels(see Fig.2).Typical gabion mattress sizes areshown in Table 2.3.2.3 lacing wire,n for gabions and gabion mattresses,ametallic-coated steel wire or metallic-coated steel wire withPVC coating used to assemble and interconnect empty gabionunits,and to close and secure stone-filled units,used as analternate to spiral binders.3.2.4 spiral binder,n for gabions and gabion mattres