1、Designation:A1078/A1078M121Standard Specification forEpoxy-Coated Steel Dowels for Concrete Pavement1This standard is issued under the fixed designation A1078/A1078M;the number immediately following the designation indicates theyear of original adoption or,in the case of revision,the year of last re
2、vision.A number in parentheses indicates the year of lastreapproval.A superscript epsilon()indicates an editorial change since the last revision or reapproval.1NOTEEditorial corrections were made to 7.7 in August 2015.1.Scope1.1 This specification covers plain steel dowel bars withprotective fusion-
3、bonded epoxy coating for use in concretepavements.1.2 This specification is applicable for orders in eitherinch-pound units(as Specification A1078)or in SI units(asSpecification A1078M).1.3 The values stated in either inch-pound or SI units are tobe regarded separately as standard.Within the text,th
4、e SI unitsare shown in brackets.The values stated in each system maynot be exact equivalents;therefore,each system shall be usedindependently of the other.Combining values from the twosystems may result in non-conformance with this specification.1.4 This standard does not purport to address all of t
5、hesafety concerns,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.NOTE1The coating applicator is identified throughout this specifica-tion
6、 as the manufacturer.2.Referenced Documents2.1 ASTM Standards:2A615/A615M Specification for Deformed and Plain Carbon-Steel Bars for Concrete ReinforcementA775/A775M Specification for Epoxy-Coated Steel Rein-forcing BarsA934/A934M Specification for Epoxy-Coated PrefabricatedSteel Reinforcing BarsA10
7、55/A1055M Specification for Zinc and Epoxy Dual-Coated Steel Reinforcing BarsD4417 Test Methods for Field Measurement of SurfaceProfile of Blast Cleaned Steel2.2 Society for Protective Coatings Specifications:3SSPC-PA 2 Measurement of Dry Coating Thickness withMagnetic GaugesSSPC-SP 10 Near-White Bl
8、ast CleaningSSPC-VIS 1 Pictorial Surface Preparation Standards forPainting Steel Surfaces2.3 Concrete Reinforcing Steel Institute Documents:4CRSI Voluntary Certification Program for Fusion BondedEpoxy Coating Applicator Plants3.Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 epox
9、y powder coating,na fusion-bonded epoxycoating product containing pigments,thermosetting epoxyresins,cross-linking agents,and other additives,which isapplied in the form of a powder onto a clean,heated metallicsubstrate and fuses to form a continuous barrier coating.3.1.2 final coat,nthe last applic
10、ation of the Type 1 or Type2 coating.3.1.3 holiday,ndiscontinuity in a coating that is notdiscernible to a person with normal or corrected vision.3.1.4 patching material,nliquid two-part epoxy coatingused to repair damaged or uncoated areas.3.1.5 plain bar,nsteel bar without protrusions.3.1.6 pretre
11、atment,na preparation of the blast-cleanedsteel surface prior to coating application that is formulated topre-treat the metal to promote coating adhesion,reduce metal/coating reactions,improve corrosion resistance,and increaseblister resistance.3.1.7 Type 1 coating,nepoxy powder coating meetingAnnex
12、 A1 of Specification A775/A775M or Annex A1 ofSpecification A1055/A1055M.3.1.8 Type 2 coating,nepoxy powder coating meetingAnnex A1 of Specification A934/A934M.1This specification is under the jurisdiction of ASTM Committee A01 on Steel,Stainless Steel and Related Alloys and is the direct responsibi
13、lity of SubcommitteeA01.05 on Steel Reinforcement.Current edition approved May 15,2012.Published September 2012.DOI:10.1520/A1078_A1078M-12E01.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume
14、 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 Concrete Reinforcing Steel Institute(CRSI),933 N.PlumGrove Rd.,Schaumburg,IL 601734758,
15、http:/www.crsi.org.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 4.Ordering Information4.1 It shall be the responsibility of the purchaser to specifyall requirements that are necessary for the coated dowels underthis specification.Such
16、requirements to be considered include,but are not limited to,the following:4.1.1 Quantity of dowels;4.1.2 Specification for plain bars,if other than A615/A615M,and year of issue(5.1);4.1.3 Diameter of dowels(5.3);4.1.4 Length of dowels,if other than 18 in.(5.4);4.1.5 Grade of steel if other than Grade 60 420(5.1)4.1.6 Type of coating(5.5);4.1.7 Test report for type of coating used,if desired(5.6);4.1.8 Sample of epoxy powder(5.10);4.1.9 Quantity of patching material(5.11);4.1.10 Pretreatment of