ASTM A1060 A1060M-2016a Standard Specification for Zinc-Coated (Galvanized) Steel Welded Wire Reinforcement Plain and Deformed for Concrete《以平整和变形镀锌钢焊接线对混凝土加固的标准规格》.pdf

1、Designation: A1060/A1060M 16A1060/A1060M 16aStandard 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 orig

2、inal adoption or, 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 wire reinfo

3、rcement, plain and deformed, or a combination of deformedand plain wires, for reinforcement of concrete, in sizes not less than 0.080 in. 2.03 mm and over nominal diameter for plain wireand 0.113 in. 2.87 mm and over for deformed wire.1.2 This specification is intended to be applicable to cold-worke

4、d wire, drawn or rolled, plain or deformed, coated in acontinuous process.1.3 An alternative to a continuous coating process of wire before 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 s

5、teels in concrete are limited. The user is cautioned that the laboratory testing performed onthis material has been insufficient and may not accurately reflect the performance of the material when embedded in concrete as reinforcement.1.4 The values stated in either SI units or inch-pound units are

6、to be regarded separately as standard. The values stated in eachsystem may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from thetwo systems may result in non-conformance with the standard.1.5 This standard does not purport to address all

7、 of the safety concerns, if any, associated with its use. It is the responsibilityof the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatorylimitations prior to use.2. Referenced Documents2.1 ASTM Standards:2A90/A90M Test Method fo

8、r Weight Mass of Coating on Iron and Steel Articles with Zinc or Zinc-Alloy CoatingsA700 Guide for Packaging, Marking, and Loading Methods for Steel Products for ShipmentA780 Practice for Repair of Damaged and Uncoated Areas of Hot-Dip Galvanized CoatingsA1064/A1064M Specification for Carbon-Steel W

9、ire and Welded Wire Reinforcement, Plain and Deformed, for ConcreteB6 Specification for ZincB487 Test Method for Measurement of Metal and Oxide Coating Thickness by Microscopical Examination of Cross SectionE376 Practice for Measuring Coating Thickness by Magnetic-Field or Eddy-Current (Electromagne

10、tic) Testing Methods2.2 Military 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:1 This specification is under the jurisdiction ofASTM Committee A01 on

11、 Steel, Stainless Steel and RelatedAlloys and is the direct responsibility of Subcommittee A01.05on Steel Reinforcement.Current edition approved March 1, 2016May 1, 2016. Published March 2016. Originally approved in 2010. Last previous edition approved in 20152016 asA1060/A1060M 15.A1060/A1060M 16.

12、DOI:10.1520/A1060_A1060M-16.DOI:10.1520 A1060_A1060M-16A.2 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary page on the ASTM website.3 Av

13、ailable from U.S. Government Printing Office Superintendent of Documents, 732 N. Capitol St., NW, Mail Stop: SDE, Washington, DC 20401, http:/www.access.gpo.gov.This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been

14、made to the previous version. Becauseit may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current versionof the standard as published by ASTM is to be considered the official document.*

15、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 States13.1.1 continuous coating, nof metallic coated steel products, the process of uninterrupted passage of long lengths of stee

16、lproducts, usually steel sheet, tube, pipe, or wire, through the various processing steps such as cleaning and coating.4. Ordering Information4.1 Orders for zinc-coated welded wire reinforcement under this specification shall contain the following information:4.1.1 Quantity (weight mass or square ar

17、ea),4.1.2 Name of material (galvanized welded wire reinforcement),4.1.3 Conforms to Specification A1064/A1064M.4.1.4 Required zinc coating weight mass (coated before fabrication) or zinc coating thickness (coated after fabrication),4.1.5 Packaging (see Section 13), and4.1.6 ASTM designation and year

18、 of issue.4.2 The purchaser shall have the option to specify additional requirements, including but not limited to, the following:4.2.1 Wire size number, wire spacing, and sheet or roll width and length,4.2.2 Minimum yield strength or Grade, and4.2.3 Requirements for inspection (see Section 9),5. Ge

19、neral Requirements5.1 The wire used in the manufacture of welded wire reinforcement shall conform to Specification A1064/A1064M. Aftergalvanizing, the welded wire shall meet the required mechanical properties of Specification A1064/A1064M except for the bendtest requirements as prescribed in Table 1

20、 of this specification.5.2 Welded wire reinforcement shall be furnished either in flat sheets, or in rolls, as specified by the purchaser.5.3 The zinc used for coating shall be any grade that conforms to Specification B6.6. Galvanizing6.1 Mass Weight Thickness of Coating and Test:6.1.1 This specific

21、ation includes six classes of coating weight mass when the welded wire reinforcement is coated beforefabrication and four coating thickness grades when the welded wire reinforcement is coated after fabrication. The weight massof zinc coating is based on the measured diameter of the wire when the str

22、ipping method is performed and the nominal diameterfor all other methods, and shall conform to the requirements shown in Table 2 or Table 3. Individual results not more than 10 %below the minimum values specified in Table 2 or Table 3 are allowed if the average of at least two samples from the same

23、coilare equal to or greater than the minimum, individual results shall be not less than 1.08 oz/ft2 330 g/m2.6.1.1.1 When the product is coated before fabrication in a continuous coating process, coating weights are given in Table 2 forvarious zinc coating classes.NOTE 2Zinc coated wire produced as

24、“regular coating” shall have the full surface covered with zinc, but there is no specified minimum weight ofcoating.6.1.1.2 When the product is coated after fabrication in a hot-dip process, coating thickness are given in Table 3 for various zinccoating grades.NOTE 3At the purchasers request the gal

25、vanized coating may be chromate treated. This is to minimize a reaction between the reinforcing steel andfresh portland cement paste. Proprietary chromating solutions of equivalent strength are permitted in place of the generic chemical treatment specified.6.1.2 Magnetic Thickness MeasurementsThe we

26、ight mass of the coating may be determined by magnetic thickness gagemeasurements in accordance with Practice E376. The thickness measurement is used to calculate the weight mass by multiplyingit by the surface area of coated wire and by the zinc density. Because this form of testing can yield incon

27、sistent and potentiallyTABLE 1 Mandrel Diameters for Test for Adherence of ZincCoating Inch-Pound Units SI UnitsMandrel Diameters of Coating Classes and GradesWire Diameter Regular andClass 1Class 3 or A,4, B, 5, andCGrade 50,60, 65, and80Under0.148 3.701DA 3D 3D0.148 3.70to0.500 12.72D 4D 4Dover0.5

28、00 12.73D 5D 5DA D = nominal wire diameter being tested.A1060/A1060M 16a2unreliable results on smaller sizes of wire, one or more of the following methods shall be permitted to be used to referee and takeprecedence over the results obtained by magnetic thickness measurements.6.1.2.1 Stripping Method

29、The weight mass shall be determined by stripping the coating from the steel wire specimen inaccordance with Section 8 and Test Method A90/A90M.6.1.2.2 Weighing Before and After GalvanizingThe weight mass shall be determined by weighing the sample before andafter galvanizing. The difference between t

30、he two measurements divided by the surface area of the sample provides the weightmass. The original weighing shall occur after pickling and drying. The second weighing shall occur after cooling to ambienttemperature.6.1.2.3 MicroscopyThe weight mass shall be determined by cross-sectional and optical

31、 measurement in accordance withTest Method B487. A cross-section sample of the steel shall be polished and examined with an optical microscope to determinethe coating thickness. The coating weight mass shall be determined by multiplying coating thickness by the surface area of thecoated sample and b

32、y the density of zinc.6.1.3 Number of TestsFor determination of the coating weight mass, three random samples shall be tested from each lot. Foreach magnetic thickness measurement sample, five or more measurements shall be made along the length and width of the sampleso as to represent the entire su

33、rface of the sample. A total of at least fifteen measurements shall be averaged to obtain the coatingthickness. For the microscopy method, five samples shall be tested per lot. Each sample shall be measured on four sides and thetotal of twenty measurements shall be averaged to obtain the coating thi

34、ckness. For the stripping method and the weighing method,three samples per lot shall be measured.NOTE 4Alot shall be as follows: all wire of the same size furnished to the same steel reinforcing specification that has been galvanized within a singleproduction shift.6.2 Handling:6.2.1 The identificat

35、ion of all reinforcing steel shall be maintained throughout the coating and fabrication process to the pointof shipment.7. Finish and Adherence of Coating7.1 The zinc coating shall have no bare spots. The coating shall be free of blisters, flux spots or inclusions, dross, and acid orblack spots. To

36、ensure large continuous length coils, welds are permitted in the finished wire. A matte gray finish appearance shallnot be itself a cause for rejection.7.2 Adherence of CoatingThe coated wire as represented by the test specimens shall be capable of passing a bend test withoutcracking or flaking the

37、coating to such an extent that any coating is removed when rubbed with the bare fingers. The bend testspecimen shall withstand being bent at room temperature through 180 as prescribed in Table 1.TABLE 2 Minimum Weight Mass of Zinc Coating, oz/ft2 g m2 Coated Before FabricationWire Diameterin. mmA Cl

38、ass 1 Class 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

39、8240.162 4.10 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 largerA Coating weights mass for diam

40、eters other than those shown in Table 2 are the coating weights mass for the next smaller diameter.TABLE 3 Coating Thickness GradeA Coated After FabricationWire Diameter CoatingGrade Mils oz/ft2 m 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

41、6.465 2.6 1.50 65 4600.250 6.4and larger80 3.1 1.90 80 565A The 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 16a38. Number of Tests8.1 Testing for Coat

42、ing Weight Mass Before FabricationFor the purpose of final product testing, one specimen from everyten coils of wire or fraction thereof in a lot shall be selected at random or a total of seven specimens, whichever is less.8.1.1 A wire sample of sufficient length, approximately 4-ft 1.2-m shall be c

43、ut from either end of each coil selected for testsdescribed in Section 6.8.2 Testing for Coating Thickness After FabricationThe purchaser may specify the sampling and test schedule for the numberand frequency of tests for coating thickness.8.3 If the number and frequency of test are not specified by

44、 the purchaser:8.3.1 One test specimen from every 20 000 ft2 1900 m2 of welded wire reinforcement shall be tested for compliance withSection 6.8.4 RetestsIf the average zinc coating weight mass thickness fails to meet the requirements of Table 2 or Table 3, sixadditional random samples from the lot

45、shall be permitted to be tested. If the average zinc coating weight mass of the six samplesconforms to the specified coating thickness, the lot shall be accepted.9. Inspection9.1 Inspection of the zinc-coated steel welded wire reinforcement shall be agreed upon between the purchaser and themanufactu

46、rer as part of the purchase order or contract.9.2 The material shall be inspected at the galvanizers plant prior to shipment. However, if specified, the purchaser shall conductthe tests which govern the acceptance or rejection of the materials in his own laboratory or elsewhere.10. Rejection and Reh

47、earing10.1 Unless otherwise specified, any rejection shall be reported to the manufacturer within five days from the time of selectionof test specimens.10.2 Welded intersections shall withstand normal shipping and handling without becoming broken, but the presence of brokenwelds, regardless of cause

48、, shall not constitute cause for rejection unless the number of broken welds per sheet exceeds 1 % of thetotal number of joints in a sheet, or if the material is furnished in rolls, 1 % of the total number of joints in 150 ft2 14 m2 ofwelded wire reinforcement and, furthermore, provided not more tha

49、n one half the permissible maximum number of broken weldsare located on any one wire.10.3 RehearingRejected materials shall be preserved for a period of at least two weeks from the date of inspection, duringwhich time the manufacturer shall be permitted to make claim for a rehearing and retesting.10.4 Rust formations on the cut ends of the w