ASTM_A_884_-_A_884M_-_14.pdf

Designation:A884/A884M14Standard Specification forEpoxy-Coated Steel Wire and Welded Wire Reinforcement1This standard is issued under the fixed designation A884/A884M;the number immediately following the designation indicates the yearof original adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.A superscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope*1.1 This specification covers plain and deformed steel wireand plain and deformed steel welded wire reinforcement withprotective epoxy coating.A Class A minimum coating thick-ness is required for wire and welded wire reinforcementintended for use in concrete and masonry.A Class B minimumcoating thickness is required for wire and welded wire rein-forcement intended for use in mechanically stabilized earthapplications.A Type 1 coating is a fusion-bonded epoxycoating that has been formulated to be sufficiently flexible toallow bending of the coated wire or welded wire reinforce-ment.A Type 2 coating is a fusion-bonded epoxy coating thathas not been designed to be sufficiently flexible to allowbending of the coated wire or welded wire reinforcement.NOTE1The coating applicator is identified throughout this specifica-tion as the manufacturer.1.2 This specification is applicable for orders in eitherinch-pound units(as Specification A884)or SI units(asSpecification A884M).1.3 The values stated in either inch-pound or SI units are tobe regarded separately as standard.Within the text,the SI unitsare shown in brackets.The values stated in each system maynot be exact equivalents;therefore,each system shall be usedindependently of the other except as specifically noted in Table1.Combining values from the two systems may result innon-conformance with this specification.1.4 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 and health practices and determine theapplicability of regulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:2A775/A775M Specification for Epoxy-Coated Steel Rein-forcing BarsA934/A934M Specification for Epoxy-Coated PrefabricatedSteel Reinforcing BarsA1064/A1064M Specification for Carbon-Steel Wire andWelded Wire Reinforcement,Plain and Deformed,forConcreteD4417 Test Methods for Field Measurement of SurfaceProfile of Blast Cleaned Steel2.2 Society for Protective Coatings Specifications:3SSPC-PA2 Measurement of Dry Coating Thickness withMagnetic GaugesSSPC-SP 10 Near-White Blast CleaningSSPC-VIS 1 Pictorial Surface Preparation Standards forPainting Steel Surfaces2.3 American Concrete Institute Specification:4ACI 301 Specifications for Structural Concrete2.4 Concrete Reinforcing Steel Institute:5CRSI“Voluntary Certification Program for Fusion BondedEpoxy Coating Applicator Plants”3.Terminology3.1 Definitions:3.1.1 disbonding,nloss of adhesion between the fusion-bonded epoxy coating and the steel reinforcement.3.1.2 fusion-bonded epoxy coating,na product containingpigments,thermosetting epoxy resins,crosslinking agents,andother additives.It is applied in the form of a powder on a clean,heated,metallic substrate and fuses to form a continuousbarrier coating.3.1.3 holiday,na discontinuity in a coating that is notdiscernible to a person with normal or corrected vision.1This 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 May 1,2014.Published May 2014.Originallyapproved in 1988.Last previous edition approved in 2012 as A884/A884M 12.DOI:10.1520/A0884_A0884M-14.2For 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 Society for Protective Coatings(SSPC),40 24th St.,6th Floor,Pittsburgh,PA 15222-4656,http:/www.sspc.org.4Available from American Concrete Institute(ACI),P.O.Box 9094,FarmingtonHills,MI 48333-9094,http:/www.aci-int.org.5Available from Concrete Reinforcing Steel Institute(CRSI),933 N.PlumGrove Rd.Schaumburg,IL 60173-4758,http:/www.crsi.org.*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 States1Copyright by ASTM Intl(all rights reserved);3.1.4 patching material,na liquid,two-part epoxy coatingcompatible with the Type I or Type II coatings used to repairdamaged or uncoated areas.3.1.5 pretreatment,na preparation of the blast-cleanedsteel surface prior to coating application that is designed topretreat the metal to promote coating adhesion,reduce metal/coating reactions,improve corrosion resistance,and increaseblist