Designation:A810−01(Reapproved2014)StandardSpecificationforZinc-Coated(Galvanized)SteelPipeWindingMesh1ThisstandardisissuedunderthefixeddesignationA810;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thisspecificationcoversvariousdesignsofweldedwiremeshortwisted(woven)hexagonalwiremesh,zinccoatedbeforefabrication,tobeusedasreinforcementfortheconcreteappliedinthemanufactureofnegativebuoyancypipeneededforlayingpipeinmarshesorinwater.Themeshisalsousedasreinforcementforconcreteappliedtopipeasabendableornonbendablemechanicalprotectivecoatingwhenlayingpipeinaharshenvironment.1.2Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.3Thetextofthisstandardreferencesnotesandfootnotesthatprovideexplanatorymaterial.Thesenotesandfootnotes(excludingthoseintablesandfigures)shallnotbeconsideredasrequirementsofthestandard.2.ReferencedDocuments2.1ASTMStandards:2A90/A90MTestMethodforWeight[Mass]ofCoatingonIronandSteelArticleswithZincorZinc-AlloyCoatingsA370TestMethodsandDefinitionsforMechanicalTestingofSteelProductsA641/A641MSpecificationforZinc–Coated(Galvanized)CarbonSteelWireA902TerminologyRelatingtoMetallicCoatedSteelProd-uctsB6SpecificationforZinc3.Terminology3.1Definitions—Fordefinitionsoftermsusedinthisspecification,seeTerminologyA902.4.Classification4.1Thesteelpipewindingmeshisclassifiedbytype,basedonmethodofmanufacture,andbydesignnumber,relatedtowidth,numberoflongitudinalwires,andwiresizes.4.2TypesofFabric:4.2.1TypeTW—Fabricmanufacturedbytwistingwirestoformameshwithaseriesofhexagonalopenings,asshowninFig.1.Oneoftheedgesofthefabricincludesastraightselvagewire.Additionallongitudinalreinforcingwiresareincludedwhenspecified.4.2.2Ty...
