ASTM A934/A934M-16
(Specification)Standard Specification for Epoxy-Coated Prefabricated Steel Reinforcing Bars
Standard Specification for Epoxy-Coated Prefabricated Steel Reinforcing Bars
ABSTRACT
This specification covers deformed and plain steel reinforcing bars. Steel samples shall be blast cleaned and shall be coated with a protective fusion-bonded epoxy coating by electrostatic spray or other suitable method. The steel specimens shall undergo deformation test, holiday checks, bending tests, and cathodic disbondment test. The steels materials shall conform to the required values of coating thickness, continuity, flexibility, adhesion.
SCOPE
1.1 This specification covers deformed and plain steel reinforcing bars which prior to surface preparation are prefabricated and then coated with a protective fusion-bonded epoxy coating by electrostatic spray or other suitable method.
1.2 Prefabricated steel reinforcing bars coated with fusion-bonded epoxy powder coating in accordance with this specification are intended to be fabricated before being coated.
1.3 Organic coatings other than epoxy may be used provided they meet the requirements of this specification.
1.4 Requirements for epoxy coatings are contained in Annex A1.
1.5 Guidelines for application process and product test procedures of epoxy coatings for steel reinforcing bars are presented in Appendix X1.
1.6 Guidelines for construction practices at the job-site for coated steel reinforcing bars are presented in Appendix X2.
1.7 This specification is applicable for orders in either SI (metric) units (as Specification A934M) or inch-pound units [as Specification A934].
1.8 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.
1.9 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:A934/A934M −16
Standard Specification for
1
Epoxy-Coated Prefabricated Steel Reinforcing Bars
This standard is issued under the fixed designationA934/A934M; the number immediately following the designation indicates the year
of original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.
A superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope* mendations issued by the World Trade Organization Technical
Barriers to Trade (TBT) Committee.
1.1 This specification covers deformed and plain steel
reinforcing bars which prior to surface preparation are prefab-
2. Referenced Documents
ricated and then coated with a protective fusion-bonded epoxy
2
2.1 ASTM Standards:
coating by electrostatic spray or other suitable method.
A615/A615MSpecificationforDeformedandPlainCarbon-
1.2 Prefabricated steel reinforcing bars coated with fusion-
Steel Bars for Concrete Reinforcement
bonded epoxy powder coating in accordance with this specifi-
A706/A706MSpecification for Deformed and Plain Low-
cation are intended to be fabricated before being coated.
Alloy Steel Bars for Concrete Reinforcement
1.3 Organic coatings other than epoxy may be used pro-
A775/A775MSpecification for Epoxy-Coated Steel Rein-
vided they meet the requirements of this specification.
forcing Bars
A944Test Method for Comparing Bond Strength of Steel
1.4 Requirements for epoxy coatings are contained in An-
Reinforcing Bars to Concrete Using Beam-End Speci-
nex A1.
mens
1.5 Guidelines for application process and product test
A996/A996MSpecification for Rail-Steel and Axle-Steel
procedures of epoxy coatings for steel reinforcing bars are
Deformed Bars for Concrete Reinforcement
presented in Appendix X1.
B117Practice for Operating Salt Spray (Fog) Apparatus
1.6 Guidelines for construction practices at the job-site for D4060Test Method for Abrasion Resistance of Organic
coated steel reinforcing bars are presented in Appendix X2. Coatings by the Taber Abraser
G8Test Methods for Cathodic Disbonding of Pipeline Coat-
1.7 This specification is applicable for orders in either SI
ings
(metric) units (as Specification A934M) or inch-pound units
G14TestMethodforImpactResistanceofPipelineCoatings
[as Specification A934].
(Falling Weight Test)
1.8 The values stated in either SI units or inch-pound units
G20Test Method for Chemical Resistance of Pipeline Coat-
are to be regarded separately as standard. The values stated in
ings
each system may not be exact equivalents; therefore, each
G42Test Method for Cathodic Disbonding of Pipeline
system shall be used independently of the other. Combining
Coatings Subjected to Elevated Temperatures
values from the two systems may result in non-conformance
G62Test Methods for Holiday Detection in Pipeline Coat-
with the standard.
ings
3
1.9 This standard does not purport to address all of the
2.2 NACE International Standard:
safety concerns, if any, associated with its use. It is the
RP0287Field Measurement of Surface Profile of Abrasive
responsibility of the user of this standard to establish appro-
Blast Cleaned Steel Surfaces Using a Replica Tape
4
priate safety, health and environmental practices and deter-
2.3 SSPC Specifications:
mine the applicability of regulatory limitations prior to use.
SSPC-SP10Near-White Blast Cleaning
1.10 This international standard was developed in accor-
SSPC-VIS1Pictorial Surface Preparation Standards for
dance with internationally recognized principles on standard-
Painting Steel Surfaces
ization established in the Decision on Principles for the
Development of International Standards, Guides and Recom-
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
1
This specification is under the jurisdiction ofASTM Committee A01 on Steel, Standards volume information, refer to the standard’s Document Summary page on
Stainless Steel and RelatedAlloys and is the direct responsibility of Subcommittee the ASTM website.
3
A01.05 on Steel Reinforcement. AvailablefromNACEInternational(NACE),15835ParkTenPl.,Houston,TX
Current edition approved March 1, 2016. Published March 2016. Originally 77084, http://www.nace.org.
4
approved in 1995. Last previous edition approved in 2013 as A934/A934M – 13. Available from Society for Protective Coatings (SSPC), 40 24th St., 6th Floor,
DOI: 10.1520/A0934_A0934M-16. Pittsburgh, PA 15222, 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 19428-2959. United States
1
---------------------- Page: 1 ----------------------
A934/A934M−16
SSPC-PA2Measurement of Dry Coating Thickness with 4.1.
...
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.
Designation: A934/A934M − 13 A934/A934M − 16
Standard Specification for
1
Epoxy-Coated Prefabricated Steel Reinforcing Bars
This standard is issued under the fixed designation A934/A934M; 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 which prior to surface preparation are prefabricated and
then coated with a protective fusion-bonded epoxy coating by electrostatic spray or other suitable method.
1.2 Prefabricated steel reinforcing bars coated with fusion-bonded epoxy powder coating in accordance with this specification
are intended to be fabricated before being coated.
1.3 Organic coatings other than epoxy may be used provided they meet the requirements of this specification.
1.4 Requirements for epoxy coatings are contained in Annex A1.
1.5 Guidelines for application process and product test procedures of epoxy coatings for steel reinforcing bars are presented in
Appendix X1.
1.6 Guidelines for construction practices at the job-site for coated steel reinforcing bars are presented in Appendix X2.
1.7 This specification is applicable for orders in either SI (metric) units (as Specification A934M) or inch-pound units [as
Specification A934].
1.8 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each
system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the
two systems may result in non-conformance with the standard.
1.9 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 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
B117 Practice for Operating Salt Spray (Fog) Apparatus
D4060 Test Method for Abrasion Resistance of Organic Coatings by the Taber Abraser
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
G42 Test Method for Cathodic Disbonding of Pipeline Coatings Subjected to Elevated Temperatures
G62 Test Methods for Holiday Detection in Pipeline Coatings
3
2.2 NACE International Standard:
RP 0287 Field Measurement of Surface Profile of Abrasive Blast Cleaned Steel Surfaces Using a Replica Tape
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 June 1, 2013March 1, 2016. Published June 2013March 2016. Originally approved in 1995. Last previous edition approved in 20072013 as
A934/A934M – 07.13. DOI: 10.1520/A0934_A0934M-13.10.1520/A0934_A0934M-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.
3
Available from NACE International, 1440 South Creek Dr., Houston, TX 77084–4906.International (NACE), 15835 Park Ten Pl., Houston, TX 77084,
http://www.nace.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 19428-2959. United States
1
---------------------- Page: 1 ----------------------
A934/A934M − 16
4
2.3 Society for Protective Coatings SSPC Specifications:
SSPC-SP 10 Near-White Blast Cleaning
SSPC-VIS 1 Pictorial Surface Preparation Standards for Painting Steel Surfaces
SSPC-PA 2 Measurement of Dry Coating Thickness with Magnetic
...
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