ASTM A1055/A1055M-10
(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 and an epoxy coating. The zinc-alloy layer is applied by the thermal spray coating method (metallizing) followed by an epoxy coating applied by the electrostatic spray method.
Note 1—The coating applicator is identified throughout this specification as the manufacturer.
1.2 Requirements of the zinc coating are contained in Table 1.
1.3 Requirements for fusion-bonded powder coatings are contained in Annex A1.
1.4 Guidelines for construction practices at the job-site are presented in Appendix X1.
1.5 This specification is applicable for orders in either inch-pound or SI units.
1.6 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 are not 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 nonconformance with this specification.
1.7 This standard 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 standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
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Designation: A1055/A1055M – 10
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* and Plain Bars for Concrete Reinforcement
A944 Test Method for Comparing Bond Strength of Steel
1.1 This specification covers deformed and plain steel
Reinforcing Bars to Concrete Using Beam-End Specimens
reinforcing bars with a dual coating of zinc alloy and an epoxy
A996/A996M Specification for Rail-Steel and Axle-Steel
coating. The zinc-alloy layer is applied by the thermal spray
Deformed Bars for Concrete Reinforcement
coating method (metallizing) followed by an epoxy coating
B117 Practice for Operating Salt Spray (Fog) Apparatus
applied by the electrostatic spray method.
B833 Specification for Zinc and Zinc Alloy Wire for Ther-
NOTE 1—The coating applicator is identified throughout this specifica-
mal Spraying (Metallizing) for the Corrosion Protection of
tion as the manufacturer.
Steel
1.2 Requirements of the zinc coating are contained in Table
D4060 Test Method for Abrasion Resistance of Organic
1.
Coatings by the Taber Abraser
1.3 Requirements for fusion-bonded powder coatings are
E29 Practice for Using Significant Digits in Test Data to
contained in Annex A1.
Determine Conformance with Specifications
1.4 Guidelines for construction practices at the job-site are
E527 Practice for Numbering Metals and Alloys in the
presented in Appendix X1.
Unified Numbering System (UNS)
1.5 This specification is applicable for orders in either
G8 Test Methods for Cathodic Disbonding of Pipeline
inch-pound or SI units.
Coatings
1.6 The values stated in either inch-pound units or SI units
G14 Test Method for Impact Resistance of Pipeline Coat-
are to be regarded as standard. Within the text, the SI units are
ings (Falling Weight Test)
shown in brackets. The values stated in each system are not
G20 Test Method for Chemical Resistance of Pipeline
exact equivalents; therefore, each system must be used inde-
Coatings
pendently of the other, except as specifically noted in Table 2.
G62 Test Methods for Holiday Detection in Pipeline Coat-
Combining values from the two systems may result in noncon-
ings
3
formance with this specification.
2.2 American Welding Society:
1.7 This standard does not purport to address all of the
ANSI/AWS A5.33 Specification for Solid and Ceramic
safety concerns, if any, associated with its use. It is the
Wires and Ceramic Rods for Thermal Spraying
responsibility of the user of this standard to establish appro-
AWS C2.23M/C2.23 Specification for the Application of
priate safety and health practices and determine the applica-
Thermal Spray Coatings (Metallizing) of Aluminum,
bility of regulatory limitations prior to use.
Zinc, and Their Alloys and Composites for the Corrosion
Protection for Steel
2. Referenced Documents
AWS C2.25/C2.25M Specification for Thermal Spray
2
2.1 ASTM Standards:
Feedstock—Solid and CompositeWire and Ceramic Rods
4
A615/A615M Specification for Deformed and Plain
2.3 NACE International Standard:
Carbon-Steel Bars for Concrete Reinforcement
RP-287 Field Measurement of Surface Profile of Abrasive
A706/A706M Specification for Low-Alloy Steel Deformed
Blast-Cleaned Steel Surface Using a Replica Tape
5
2.4 Society for Protective Coatings Specifications:
SSPC-PA 2 Measurement of Dry Coating Thickness with
1
This specification is under the jurisdiction of ASTM Committee A01 on Steel,
Magnetic Gages
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee
A01.05 on Steel Reinforcement.
Current edition approved Dec. 1, 2010. Published December 2010. Originally
´1 3
approved in 2008. Last previous edition approved in 2008 as A1055 – 08a . DOI: Available from American Welding Society (AWS), 550 NW LeJeune Rd.,
10.1520/A1055_A1055M-10. Miami, FL 33126, http://www.aws.org.
2 4
For referenced ASTM standards, visit the ASTM website, www.astm.org, or Available from National Association of Corrosion Engineers (NACE), 1440
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM South Creek Dr., Houston, TX 77084-4906, http://www.nace.org.
5
Standards volume information, refer to the standard’s Document Summary page on Available from Society for Protective Coatings (SSPC), 40 24th St., 6th Floor,
the ASTM website. Pittsburgh, PA 15222-4656, http://www.sspc.org.
*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 1942
...
This document is not anASTM standard and is intended only to provide the user of anASTM 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.
Designation:A1055–08 Designation: A1055/A1055M – 10
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*
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) followed by an epoxy coating applied by the
electrostatic spray method.
NOTE 1—The coating applicator is identified throughout this specification as the manufacturer.
1.2 Requirements of the zinc coating are contained in Table 1.
1.3 Requirements for fusion-bonded powder coatings are contained in Annex A1.
1.4 Guidelines for construction practices at the job-site are presented in Appendix X1.
1.5 This specification is applicable for orders in either SI units inch-pound or inch pounds SI units.
1.6 The values stated in either SI inch-pound units or inch-poundSI units are to be regarded as standard. Within the text, the
inch-poundSI units are shown in brackets. The values stated in each system are not 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
nonconformance with this specification.
1.7 This standard 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 standard 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
A615/A615M Specification for Deformed and Plain Carbon-Steel Bars for Concrete Reinforcement A706/A706M
A706/A706M Specification for Low-Alloy Steel Deformed and Plain Bars for Concrete Reinforcement A775/
A775MSpecification
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
A996/A996M Specification for Rail-Steel and Axle-Steel Deformed 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
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
E527 Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)
G8 Test Methods for Cathodic Disbonding of Pipeline Coatings
G14 Test Method for Impact Resistance of Pipeline Coatings (Falling Weight Test)
G20 Test Method for Chemical Resistance of Pipeline Coatings
G62 Test Methods for Holiday Detection in Pipeline Coatings
1
This specification is under the jurisdiction ofASTM CommitteeA01 on Steel, Stainless Steel and RelatedAlloys and is the direct responsibility of SubcommitteeA01.05
on Steel Reinforcement.
Current edition approved March 1, 2008. Published April 2008. DOI: 10.1520/A1055-08.
´1
Current edition approved Dec. 1, 2010. Published December 2010. Originally approved in 2008. Last previous edition approved in 2008 as A1055 – 08a . DOI:
10.1520/A1055_A1055M-10.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM 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
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A1055/A1055M – 10
TABLE 1 Chemical Composition Requirements for Zinc and Zinc-Alloy Wires
Al,
Common Name Cd, Cu, Fe, Pb, Sn, Sb, Ag, Bi, As, Ni, Mg, Mo, Ti, Zn, Other,
max
A
(UNS) max max max max max max max max max max max max max min Total max
unless noted
B
99.99 Zinc
C D
0.002 0.003 0.005 0.003 0.003 0.001 … … … … … … … … 99.99 …
(Z13005)
B
99.99 Zinc
0.01 0.02 0.02 0.02 0.03 … … … … … … … … … 99.9 0.10 total non-Zn
(Z15005)
99.995 Zinc
0.001 0.003 0
...
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