ASTM_A_1094_-_A_1094M_-_18.pdf

Designation:A1094/A1094M18Standard Specification forContinuous Hot-Dip Galvanized Steel Bars for ConcreteReinforcement1This standard is issued under the fixed designation A1094/A1094M;the number immediately following the designation indicates theyear of original 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 steel reinforcing bars,withprotective zinc or zinc-alloy coatings applied by the continuoushot-dip process.NOTE1The galvanizer is identified throughout this specification asthe manufacturer.1.2 Guidelines for construction practices at the job-site arepresented in Appendix X1.1.3 Guidelines for use of continuous hot-dip galvanizedreinforcing bars with non-galvanized steel forms are presentedin Appendix X2.1.4 The text of this specification references notes andfootnotes which provide explanatory material.These notes andfootnotes shall not be considered requirements of the specifi-cation.1.5 This specification is applicable for orders in eitherinch-pound units(as Specification A1094)or SI units(asSpecification A1094M).1.6 The values stated in either inch-pound units or SI unitsare to be regarded separately as standard.Within the text,theSI units are shown in brackets.The values stated in eachsystem may not be exact equivalents;therefore,each systemshall be used independently of the other.Combining valuesfrom the two systems may result in non-conformance with thisspecification.1.7 This specification does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user of this specification to establishappropriate safety,health,and environmental practices anddetermine the applicability of regulatory limitations prior touse.1.8 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2A90/A90M Test Method for Weight Mass of Coating onIron and Steel Articles with Zinc or Zinc-Alloy CoatingsA615/A615M Specification for Deformed and Plain Carbon-Steel Bars for Concrete ReinforcementA706/A706M Specification for Deformed and Plain Low-Alloy Steel Bars for Concrete ReinforcementA780/A780M Practice for Repair of Damaged and UncoatedAreas of Hot-Dip Galvanized CoatingsA996/A996M Specification for Rail-Steel and Axle-SteelDeformed Bars for Concrete ReinforcementB6 Specification for ZincB487 Test Method for Measurement of Metal and OxideCoating Thickness by Microscopical Examination ofCross SectionB852 Specification for Continuous Galvanizing Grade(CGG)Zinc Alloys for Hot-Dip Galvanizing of SheetSteelE376 Practice for Measuring Coating Thickness byMagnetic-Field or Eddy Current(Electromagnetic)Test-ing Methods3.Terminology3.1 Definitions of Terms Specific to This Specification:3.1.1 continuous hot-dip galvanizing,nthe process ofuninterrupted passage of long lengths of steel products througha molten bath of zinc or zinc-alloy.3.1.1.1 DiscussionTo control alloy formation and promoteadhesion of the zinc or zinc-alloy coating with the steel basemetal,the molten coating metal composition normally containsa percentage of aluminum usually in the range from 0.05 to0.25.This aluminum is purposely supplied to the molten1This specification is under the jurisdiction of ASTM Committee A01 on Steel,Stainless Steel and Related Alloys and is the direct responsibility of SubcommitteeA01.05 on Steel Reinforcement.Current edition approved Nov.1,2018.Published November 2018.Originallyapproved in 2015.Last previous edition approved in 2016 as A1094/A1094M 16.DOI:10.1520/A1094_A1094M-18.2For 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.*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 StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.1 coating bath,either as a specified ingredient in the zinc spelteror by the addition of a master alloy containing aluminum.3.1.2 lot,nall bars of one size furnished to the same steelreinforcing bar specification that have been coated within asingle production shift.4.Ordering Information4.1 Orders for con