ASTM A1055/A1055M-16
(Specification)Standard Specification for Zinc and Epoxy Dual-Coated Steel Reinforcing Bars
Standard Specification for Zinc and Epoxy Dual-Coated Steel Reinforcing Bars
ABSTRACT
This specification covers deformed and plain steel reinforcing bars with a dual coating of zinc alloy and an epoxy coating. The zinc alloy layer shall be applied by the thermal spray coating method followed by an epoxy coating, which shall be applied by the electrostatic spray method. The zinc coating shall conform to the required chemical composition for aluminum, cadmium, copper, iron, lead, tin, antimony, silver, bismuth, arsenic, nickel, magnesium, titanium, and zinc. The coated steel reinforcing bars shall conform to bend test requirements and to physical properties such as coating thickness, coating continuity, epoxy coating flexibility, and coating adhesion.
SCOPE
1.1 This specification covers deformed and plain steel reinforcing bars with a dual coating of zinc-alloy followed by an epoxy coating applied by the electrostatic spray method.
1.2 The zinc-alloy coating is produced as one of two types: zinc-alloy applied by the thermal spray method (Type I) or zinc-alloy applied in accordance with Specification A1094/A1094M (Type II).
Note 1: The coating applicator is identified throughout this specification as the manufacturer.
1.3 Requirements for the zinc coating are contained in
Table 1. (A) UNS designations were established in accordance with Practice E527.(B) In accordance with ANSI/AWS A5.33.(C) The following applies to all specified limits in this table. For the purposes of determining conformance with this specification, an observed value obtained from analysis shall be rounded off to the nearest unit in the last right-hand place of figures used in expressing the limiting value, in accordance with the rounding method of Practice E29.(D) … indicates that the element is not applicable.(E) (…) indicates no Unified Numbering System (UNS) designation for this option.
1.4 Requirements for epoxy powder coatings are contained in Annex A1.
1.5 Guidelines for construction practices at the job-site are presented in Appendix X1.
1.6 The text of this specification references notes and footnotes which provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of the specification.
1.7 This specification is applicable for orders in either inch-pound units [as Specification A1055] or SI units [as Specification A1055M].
1.8 The values stated in either inch-pound units or SI units are to be regarded as standard. Within the text, the SI units are shown in brackets. The values stated in each system may not be exact equivalents; therefore, each system must be used independently of the other, except as specifically noted in Table 2. Combining values from the two systems may result in non-conformance with this specification. (A) Pin diameters specified for similar size (shown on the same line) inch-pound bars and metric may be interchanged.(B) Bar designation Nos. 9, 10, 11, 14, and 18 [29, 32, 36, 43, and 57] are not covered by Specification A996/A996M.
1.9 This specification does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this specification to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
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Designation:A1055/A1055M −16
Standard Specification for
1
Zinc and Epoxy Dual-Coated Steel Reinforcing Bars
This standard is issued under the fixed designation A1055/A1055M; the number immediately following the designation indicates the
year of 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* appropriate safety, health, and environmental practices and
determine the applicability of regulatory limitations prior to
1.1 This specification covers deformed and plain steel
use.
reinforcing bars with a dual coating of zinc-alloy followed by
1.10 This international standard was developed in accor-
an epoxy coating applied by the electrostatic spray method.
dance with internationally recognized principles on standard-
1.2 The zinc-alloy coating is produced as one of two types: ization established in the Decision on Principles for the
zinc-alloy applied by the thermal spray method (Type I) or
Development of International Standards, Guides and Recom-
zinc-alloy applied in accordance with Specification A1094/ mendations issued by the World Trade Organization Technical
A1094M (Type II).
Barriers to Trade (TBT) Committee.
NOTE 1—The coating applicator is identified throughout this specifica-
tion as the manufacturer. 2. Referenced Documents
2
2.1 ASTM Standards:
1.3 RequirementsforthezinccoatingarecontainedinTable
1. A615/A615MSpecificationforDeformedandPlainCarbon-
Steel Bars for Concrete Reinforcement
1.4 Requirements for epoxy powder coatings are contained
A706/A706MSpecification for Deformed and Plain Low-
in Annex A1.
Alloy Steel Bars for Concrete Reinforcement
1.5 Guidelines for construction practices at the job-site are A775/A775MSpecification for Epoxy-Coated Steel Rein-
presented in Appendix X1. forcing Bars
A944Test Method for Comparing Bond Strength of Steel
1.6 The text of this specification references notes and
Reinforcing Bars to Concrete Using Beam-End Speci-
footnoteswhichprovideexplanatorymaterial.Thesenotesand
mens
footnotes (excluding those in tables and figures) shall not be
A996/A996MSpecification for Rail-Steel and Axle-Steel
considered as requirements of the specification.
Deformed Bars for Concrete Reinforcement
1.7 This specification is applicable for orders in either A1094/A1094MSpecification for Continuous Hot-Dip Gal-
inch-pound units [as Specification A1055] or SI units [as
vanized Steel Bars for Concrete Reinforcement
Specification A1055M]. B117Practice for Operating Salt Spray (Fog) Apparatus
B833Specification for Zinc and Zinc Alloy Wire for Ther-
1.8 The values stated in either inch-pound units or SI units
malSpraying(Metallizing)fortheCorrosionProtectionof
are to be regarded as standard. Within the text, the SI units are
Steel
showninbrackets.Thevaluesstatedineachsystemmaynotbe
D4060Test Method for Abrasion Resistance of Organic
exact equivalents; therefore, each system must be used inde-
Coatings by the Taber Abraser
pendently of the other, except as specifically noted in Table 2.
D4417Test Methods for Field Measurement of Surface
Combining values from the two systems may result in non-
Profile of Blast Cleaned Steel
conformance with this specification.
E29Practice for Using Significant Digits in Test Data to
1.9 This specification does not purport to address all of the
Determine Conformance with Specifications
safety concerns, if any, associated with its use. It is the
E527Practice for Numbering Metals and Alloys in the
responsibility of the user of this specification to establish
Unified Numbering System (UNS)
G14TestMethodforImpactResistanceofPipelineCoatings
(Falling Weight Test)
1
This specification is under the jurisdiction ofASTM Committee A01 on Steel,
Stainless Steel and RelatedAlloys and is the direct responsibility of Subcommittee
2
A01.05 on Steel Reinforcement. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved Dec. 1, 2016. Published March 2017. Originally contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
ε1
approved in 2008. Last previous edition approved in 2010 as A1055–10 . DOI: Standards volume information, refer to the standard’s Document Summary page on
10.1520/A1055_A1055M-16. the ASTM website.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
A1055/A1055M−16
TABLE 1 Chemical Composition Requirements for Zinc and Zinc-Alloy Wires
Al,
Common
max Cd, Cu, Fe, Pb, Sn, Sb, Ag, Bi, As, Ni, Mg, Mo, Ti, Zn, Other,
Name
unless max max max max max max max max max max max max max min Total max
A
...
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 made to the previous version. Because
it 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 version
of the standard as published by ASTM is to be considered the official document.
´1
Designation: A1055/A1055M − 10 A1055/A1055M − 16
Standard Specification for
1
Zinc and Epoxy Dual-Coated Steel Reinforcing Bars
This standard is issued under the fixed designation A1055/A1055M; the number immediately following the designation indicates the
year of 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
ε NOTE—Mathematical corrections to A1.3.8 were made in December 2011.
1. Scope*
1.1 This specification covers deformed and plain steel reinforcing bars with a dual coating of zinc alloy and an epoxy coating.
The zinc-alloy layer is applied by the thermal spray coating method (metallizing) zinc-alloy followed by an epoxy coating applied
by the electrostatic spray method.
1.2 The zinc-alloy coating is produced as one of two types: zinc-alloy applied by the thermal spray method (Type I) or zinc-alloy
applied in accordance with Specification A1094/A1094M (Type II).
NOTE 1—The coating applicator is identified throughout this specification as the manufacturer.
1.3 Requirements offor the zinc coating are contained in
Table 1.
1.4 Requirements for fusion-bondedepoxy powder coatings are contained in Annex A1.
1.5 Guidelines for construction practices at the job-site are presented in Appendix X1.
1.6 The text of this specification references notes and footnotes which provide explanatory material. These notes and footnotes
(excluding those in tables and figures) shall not be considered as requirements of the specification.
1.7 This specification is applicable for orders in either inch-pound units [as Specification A1055] or SI units.units [as
Specification A1055M].
1.8 The values stated in either inch-pound units or SI units are to be regarded as standard. Within the text, the SI units are shown
in brackets. The values stated in each system aremay not be exact equivalents; therefore, each system must be used independently
of the other, except as specifically noted in Table 2. Combining values from the two systems may result in nonconformancenon-
conformance with this specification.
1.9 This standardspecification does not purport to address all of the safety concerns, if any, associated with its use. It is the
responsibility of the user of this standardspecification to establish appropriate safety and health practices and determine the
applicability of regulatory limitations prior to use.
2. Referenced Documents
2
2.1 ASTM Standards:
A615/A615M Specification for Deformed and Plain Carbon-Steel Bars for Concrete Reinforcement
A706/A706M Specification for Deformed and Plain Low-Alloy Steel Bars for Concrete Reinforcement
A775/A775M Specification for Epoxy-Coated Steel Reinforcing Bars
A944 Test Method for Comparing Bond Strength of Steel Reinforcing Bars to Concrete Using Beam-End Specimens
A996/A996M Specification for Rail-Steel and Axle-Steel Deformed Bars for Concrete Reinforcement
A1094/A1094M Specification for Continuous Hot-Dip Galvanized Steel Bars for Concrete Reinforcement
B117 Practice for Operating Salt Spray (Fog) Apparatus
B833 Specification for Zinc and Zinc Alloy Wire for Thermal Spraying (Metallizing) for the Corrosion Protection of Steel
D4060 Test Method for Abrasion Resistance of Organic Coatings by the Taber Abraser
1
This specification is under the jurisdiction of ASTM Committee A01 on Steel, Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee A01.05
on Steel Reinforcement.
Current edition approved Dec. 1, 2010Dec. 1, 2016. Published December 2010March 2017. Originally approved in 2008. Last previous edition approved in 20082010 as
ε1
A1055 – 08aA1055 – 10 . DOI: 10.1520/A1055_A1055M-10E01.10.1520/A1055_A1055M-16.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
A1055/A1055M − 16
TABLE 1 Chemical Composition Requirements for Zinc and Zinc-Alloy Wires
Al,
Common
max Cd, Cu, Fe, Pb, Sn, Sb, Ag, Bi, As, Ni, Mg, Mo, Ti, Zn, Other,
Name
unless max max max max max max max max max max max max max min Total max
A
(UNS)
noted
B
99.99 Zinc
C D
0
...
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