1、Designation: A1060/A1060M 16Standard Specification forZinc-Coated (Galvanized) Steel Welded Wire Reinforcement,Plain and Deformed, for Concrete1This standard is issued under the fixed designation A1060/A1060M; the number immediately following the designation indicates theyear of original adoption or
2、, in the case of revision, the year of last revision. A number in parentheses indicates the year of lastreapproval. A superscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope*1.1 This specification covers zinc-coated steel welded wirereinforcement, plain an
3、d deformed, or a combination of de-formed and plain wires, for reinforcement of concrete, in sizesnot less than 0.080 in. 2.03 mm and over nominal diameterfor plain wire and 0.113 in. 2.87 mm and over for deformedwire.1.2 This specification is intended to be applicable to cold-worked wire, drawn or
4、rolled, plain or deformed, coated in acontinuous process.1.3 An alternative to a continuous coating process of wirebefore fabrication is a hot-dip process, where the welded wirereinforcement is immersed in a bath of molten zinc.NOTE 1Data on the corrosion resistance of galvanized steels inconcrete a
5、re limited. The user is cautioned that the laboratory testingperformed on this material has been insufficient and may not accuratelyreflect the performance of the material when embedded in concrete asreinforcement.1.4 The values stated in either SI units or inch-pound unitsare to be regarded separat
6、ely as standard. The values stated ineach system may not be exact equivalents; therefore, eachsystem shall be used independently of the other. Combiningvalues from the two systems may result in non-conformancewith the standard.1.5 This standard does not purport to address all of thesafety concerns,
7、if any, associated with its use. It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2A90/A90M Test Method for Weight Mass of Coati
8、ng onIron and Steel Articles with Zinc or Zinc-Alloy CoatingsA700 Guide for Packaging, Marking, and Loading Methodsfor Steel Products for ShipmentA780 Practice for Repair of Damaged and Uncoated Areasof Hot-Dip Galvanized CoatingsA1064/A1064M Specification for Carbon-Steel Wire andWelded Wire Reinfo
9、rcement, Plain and Deformed, forConcreteB6 Specification for ZincB487 Test Method for Measurement of Metal and OxideCoating Thickness by Microscopical Examination ofCross SectionE376 Practice for Measuring Coating Thickness byMagnetic-Field or Eddy-Current (Electromagnetic) Test-ing Methods2.2 Milit
10、ary Standard:3MIL-STD-129 Marking for Shipment and Storage2.3 Federal Standard:3Fed. Std. No. 123 Marking for Shipments (Civil Agencies)3. Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 continuous coating, nof metallic coated steelproducts, the process of uninterrupted passage o
11、f long lengthsof steel products, usually steel sheet, tube, pipe, or wire,through the various processing steps such as cleaning andcoating.4. Ordering Information4.1 Orders for zinc-coated welded wire reinforcement underthis specification shall contain the following information:4.1.1 Quantity (weigh
12、t mass or square area),4.1.2 Name of material (galvanized welded wirereinforcement),4.1.3 Conforms to Specification A1064/A1064M.4.1.4 Required zinc coating weight mass (coated beforefabrication) or zinc coating thickness (coated after fabrication),1This specification is under the jurisdiction of AS
13、TM Committee A01 on Steel,Stainless Steel and Related Alloys and is the direct responsibility of SubcommitteeA01.05 on Steel Reinforcement.Current edition approved March 1, 2016. Published March 2016. Originallyapproved in 2010. Last previous edition approved in 2015 as A1060/A1060M 15.DOI:10.1520/A
14、1060_A1060M-16.2For 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.3Available from U.S. Government Printing Offic
15、e Superintendent of Documents,732 N. Capitol St., NW, Mail Stop: SDE, Washington, DC 20401, http:/www.access.gpo.gov.*A Summary of Changes section appears at the end of this standardCopyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States14.1.
16、5 Packaging (see Section 13), and4.1.6 ASTM designation and year of issue.4.2 The purchaser shall have the option to specify additionalrequirements, including but not limited to, the following:4.2.1 Wire size number, wire spacing, and sheet or rollwidth and length,4.2.2 Minimum yield strength or Gra
17、de, and4.2.3 Requirements for inspection (see Section 9),5. General Requirements5.1 The wire used in the manufacture of welded wirereinforcement shall conform to Specification A1064/A1064M.After galvanizing, the welded wire shall meet the requiredmechanical properties of Specification A1064/A1064M e
18、xceptfor the bend test requirements as prescribed in Table 1 of thisspecification.5.2 Welded wire reinforcement shall be furnished either inflat sheets, or in rolls, as specified by the purchaser.5.3 The zinc used for coating shall be any grade thatconforms to Specification B6.6. Galvanizing6.1 Mass
19、 Weight Thickness of Coating and Test:6.1.1 This specification includes six classes of coatingweight mass when the welded wire reinforcement is coatedbefore fabrication and four coating thickness grades when thewelded wire reinforcement is coated after fabrication. Theweight mass of zinc coating is
20、based on the measureddiameter of the wire when the stripping method is performedand the nominal diameter for all other methods, and shallconform to the requirements shown in Table 2 or Table 3.Individual results not more than 10 % below the minimumvalues specified in Table 2 or Table 3 are allowed i
21、f the averageof at least two samples from the same coil are equal to orgreater than the minimum, individual results shall be not lessthan 1.08 oz/ft2330 g/m2.6.1.1.1 When the product is coated before fabrication in acontinuous coating process, coating weights are given in Table2 for various zinc coa
22、ting classes.NOTE 2Zinc coated wire produced as “regular coating” shall have thefull surface covered with zinc, but there is no specified minimum weightof coating.6.1.1.2 When the product is coated after fabrication in ahot-dip process, coating thickness are given in Table 3 forvarious zinc coating
23、grades.NOTE 3At the purchasers request the galvanized coating may bechromate treated. This is to minimize a reaction between the reinforcingsteel and fresh portland cement paste. Proprietary chromating solutions ofequivalent strength are permitted in place of the generic chemicaltreatment specified.
24、6.1.2 Magnetic Thickness MeasurementsThe weightmass of the coating may be determined by magnetic thicknessgage measurements in accordance with Practice E376. Thethickness measurement is used to calculate the weight massby multiplying it by the surface area of coated wire and by thezinc density. Beca
25、use this form of testing can yield inconsistentand potentially unreliable results on smaller sizes of wire, oneor more of the following methods shall be permitted to be usedto referee and take precedence over the results obtained bymagnetic thickness measurements.6.1.2.1 Stripping MethodThe weight m
26、ass shall be de-termined by stripping the coating from the steel wire specimenin accordance with Section 8 and Test Method A90/A90M.6.1.2.2 Weighing Before and After GalvanizingTheweight mass shall be determined by weighing the samplebefore and after galvanizing. The difference between the twomeasur
27、ements divided by the surface area of the sampleprovides the weight mass. The original weighing shall occurafter pickling and drying. The second weighing shall occurafter cooling to ambient temperature.6.1.2.3 MicroscopyThe weight mass shall be determinedby cross-sectional and optical measurement in
28、 accordance withTest Method B487. A cross-section sample of the steel shall bepolished and examined with an optical microscope to deter-mine the coating thickness. The coating weight mass shall bedetermined by multiplying coating thickness by the surfacearea of the coated sample and by the density o
29、f zinc.6.1.3 Number of TestsFor determination of the coatingweight mass, three random samples shall be tested from eachlot. For each magnetic thickness measurement sample, five ormore measurements shall be made along the length and widthof the sample so as to represent the entire surface of thesampl
30、e. A total of at least fifteen measurements shall beaveraged to obtain the coating thickness. For the microscopymethod, five samples shall be tested per lot. Each sample shallbe measured on four sides and the total of twenty measure-ments shall be averaged to obtain the coating thickness. For thestr
31、ipping method and the weighing method, three samples perlot shall be measured.NOTE 4A lot shall be as follows: all wire of the same size furnishedto the same steel reinforcing specification that has been galvanized withina single production shift.6.2 Handling:6.2.1 The identification of all reinforc
32、ing steel shall bemaintained throughout the coating and fabrication process tothe point of shipment.7. Finish and Adherence of Coating7.1 The zinc coating shall have no bare spots. The coatingshall be free of blisters, flux spots or inclusions, dross, and acidTABLE 1 Mandrel Diameters for Test for A
33、dherence of ZincCoating Inch-Pound Units SI UnitsMandrel Diameters of Coating Classes and GradesWire DiameterRegular andClass 1Class 3 or A,4, B, 5, andCGrade 50,60, 65, and80Under0.148 3.701DA3D 3D0.148 3.70to0.500 12.72D 4D 4Dover0.500 12.73D 5D 5DAD = nominal wire diameter being tested.A1060/A106
34、0M 162or black spots. To ensure large continuous length coils, weldsare permitted in the finished wire. A matte gray finish appear-ance shall not be itself a cause for rejection.7.2 Adherence of CoatingThe coated wire as representedby the test specimens shall be capable of passing a bend testwithout
35、 cracking or flaking the coating to such an extent thatany coating is removed when rubbed with the bare fingers. Thebend test specimen shall withstand being bent at room tem-perature through 180 as prescribed in Table 1.8. Number of Tests8.1 Testing for Coating Weight Mass Before FabricationFor the
36、purpose of final product testing, one specimen fromevery ten coils of wire or fraction thereof in a lot shall beselected at random or a total of seven specimens, whichever isless.8.1.1 A wire sample of sufficient length, approximately 4-ft1.2-m shall be cut from either end of each coil selected fort
37、ests described in Section 6.8.2 Testing for Coating Thickness After FabricationThepurchaser may specify the sampling and test schedule for thenumber and frequency of tests for coating thickness.8.3 If the number and frequency of test are not specified bythe purchaser:8.3.1 One test specimen from eve
38、ry 20 000 ft21900 m2of welded wire reinforcement shall be tested for compliancewith Section 6.8.4 RetestsIf the average zinc coating weight massthickness fails to meet the requirements of Table 2 or Table 3,six additional random samples from the lot shall be permittedto be tested. If the average zin
39、c coating weight mass of the sixsamples conforms to the specified coating thickness, the lotshall be accepted.9. Inspection9.1 Inspection of the zinc-coated steel welded wire rein-forcement shall be agreed upon between the purchaser and themanufacturer as part of the purchase order or contract.9.2 T
40、he material shall be inspected at the galvanizers plantprior to shipment. However, if specified, the purchaser shallconduct the tests which govern the acceptance or rejection ofthe materials in his own laboratory or elsewhere.10. Rejection and Rehearing10.1 Unless otherwise specified, any rejection
41、shall bereported to the manufacturer within five days from the time ofselection of test specimens.10.2 Welded intersections shall withstand normal shippingand handling without becoming broken, but the presence ofbroken welds, regardless of cause, shall not constitute cause forrejection unless the nu
42、mber of broken welds per sheet exceeds1 % of the total number of joints in a sheet, or if the materialis furnished in rolls, 1 % of the total number of joints in 150 ft214 m2 of welded wire reinforcement and, furthermore,provided not more than one half the permissible maximumnumber of broken welds a
43、re located on any one wire.10.3 RehearingRejected materials shall be preserved for aperiod of at least two weeks from the date of inspection, duringwhich time the manufacturer shall be permitted to make claimfor a rehearing and retesting.10.4 Rust formations on the cut ends of the wire and atwelded
44、intersections are inherent characteristics of this mate-rial and shall not be cause for rejection.11. 11. Repair of Damaged Coating11.1 Prior to shipment, all coating defects other than thosedescribed in 10.4 shall be repaired with a zinc-rich formulationin accordance with Practice A780.12. Certific
45、ation12.1 If outside inspection is waived, a manufacturers cer-tification that the material has been tested in accordance withand meets the requirements of this specification shall be theTABLE 2 Minimum Weight Mass of Zinc Coating, oz/ft2g m2 Coated Before FabricationWire Diameterin. mmAClass 1 Clas
46、s 2 Class 3 or A Class B Class 5 Class C0.080 2.03 0.25 76 0.70 214 1.20 366 1.40 427 2.00 610 2.10 6410.099 2.50 0.28 85 0.70 214 1.20 366 1.60 488 2.00 610 2.40 7320.135 3.40 0.30 92 0.85 260 1.20 366 1.70 520 2.00 610 2.55 7780.148 3.80 0.35 107 0.90 275 1.20 366 1.80 550 2.00 610 2.70 8240.162 4
47、.10 0.35 107 0.90 275 1.20 366 1.80 550 2.00 610 2.70 8240.177 4.50 0.44 134 0.90 275 1.20 366 1.80 550 2.00 610 2.70 8240.192 4.90 0.50 153 1.00 305 1.20 366 2.00 610 2.00 610 3.00 9150.207 5.30 0.53 162 1.00 305 1.20 366 2.00 610 2.00 610 3.00 915and largerACoating weights mass for diameters other
48、 than those shown in Table 2 are the coating weights mass for the next smaller diameter.TABLE 3 Coating Thickness GradeACoated After FabricationWire DiameterCoatingGradeMils oz/ft2m g/m2Under0.125 3.250 2.0 1.20 50 3550.125 3.2to under0.188 4.860 2.4 1.30 60 3900.188 4.8to under0.250 6.465 2.6 1.50
49、65 4600.250 6.4and larger80 3.1 1.90 80 565AThe values in micrometers (m) are based on the Coating Grade. The othervalues are based on conversions using the following formulas:mils = m 0.03937; oz ft2= m 0.02316; g m2= m 7.067.A1060/A1060M 163basis of acceptance of the material. The certification shallinclude the specification number, year-dat
