ASTM_A_975_-_11_2016.pdf

Designation:A97511(Reapproved 2016)Standard Specification forDoubleTwisted Hexagonal Mesh Gabions and RevetMattresses(Metallic-Coated Steel Wire or Metallic-CoatedSteel Wire With Poly(Vinyl Chloride)(PVC)Coating)1This standard is issued under the fixed designation A975;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 revet mattressesproduced from double-twisted metallic-coated wire mesh,andmetallic-coated wire for lacing wire,stiffeners,and fastenersused for manufacturing,assembling,and installation of theproduct.This specification also covers gabions and revetmattresses in which the wire mesh,lacing wire,and stiffenersare poly(vinyl chloride)(PVC)coated after the metallic coat-ing.1.2 Double-twisted wire mesh for gabions and revet mat-tresses is produced in different styles,based on type of coating,as described in Section 4.1.3 The values stated in SI units are to be regarded as thestandard.The values given in parentheses are for informationonly.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 consult and establish appropriate safety andhealth practices and determine the applicability of regulatorylimitations 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 CoatingsA313/A313M Specification for Stainless Steel Spring WireA370 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 WireA764 Specification for Metallic Coated Carbon Steel Wire,Coated at Size and Drawn to Size for Mechanical SpringsA809 Specification for Aluminum-Coated(Aluminized)Carbon Steel WireA856/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)ApparatusD412 Test Methods for Vulcanized Rubber and Thermoplas-tic ElastomersTensionD746 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 Definitions:3.1.1 Refer to Terminology A902 for general terminologyrelating to metallic-coated steel products.1This specification is under the jurisdiction of ASTM Committee A05 onMetallic-Coated Iron and Steel Products and is the direct responsibility ofSubcommittee A05.12 on Wire Specifications.Current edition approved May 1,2016.Published June 2016.Originallyapproved in 1997.Last previous edition approved in 2011 as A975-11.DOI:10.1520/A0975-11R16.2For 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 3.2 Definitions of Terms Specific to This Standard:3.2.1 double-twisted wire mesh,na nonraveling meshmade by twisting continuous pairs of wires through threeone-half turns(commonly called double-twisted)to formhexagonal-shaped openings which are then interconnected toadjacent wires to form hexagonal openings.3.2.2 edge wire,na terminal wire used to edge the wiremesh parallel to the double twist by continuously weaving itinto the wire mesh.3.2.3 fastener,nan alternate method to lacing wire usedfor binding operations for gabions and revet mattresses.3.2.4 gabion,na double-twisted wire mesh container ofvariable sizes,uniformly partitioned into internal cells,inter-connected with other similar units,and filled with stone at theproject site to form flexible,permeable,monolithic structuressuch as retaining wa