ASTM A934/A934M-22 - 1.9.2022
 
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?Requirements for patching material are contained in Annex A2 in Specification A775/A775M.

1.6?Guidelines for application process and product test procedures of epoxy coatings for steel reinforcing bars are presented in Appendix X1.

1.7?Guidelines for construction practices at the job-site for coated steel reinforcing bars are presented in Appendix X2.

1.8?This specification is applicable for orders in either inch-pound units (as Specification A934) or SI [metric] units [as Specification A934M].

1.9?The values stated in either inch-pound units or SI 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.

1.10?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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.11?This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

 
2. Referenced Documents

G20-10(2019)

Standard Test Method for Chemical Resistance of Pipeline Coatings

A944-22

Standard Test Method for Comparing Bond Strength of Steel Reinforcing Bars to Concrete Using Beam-End Specimens

A996/A996M-16

Standard Specification for Rail-Steel and Axle-Steel Deformed Bars for Concrete Reinforcement

B117-19

Standard Practice for Operating Salt Spray (Fog) Apparatus

D4060-19

Standard Test Method for Abrasion Resistance of Organic Coatings by the Taber Abraser

G42-11(2019)e1

Standard Test Method for Cathodic Disbonding of Pipeline Coatings Subjected to Elevated Temperatures (Includes all amendments and changes 7/23/2019).

G62-23

Standard Test Methods for Holiday Detection of Coatings used to Protect Pipelines

RP0287

Field Measurement of Surface Profile of Abrasive Blast Cleaned Steel Surfaces Using a Replica Tape

A615/A615M-22

Standard Specification for Deformed and Plain Carbon-Steel Bars for Concrete Reinforcement

G14-04(2018)

Standard Test Method for Impact Resistance of Pipeline Coatings (Falling Weight Test)

A775/A775M-22

Standard Specification for Epoxy-Coated Steel Reinforcing Bars

A706/A706M-22a

Standard Specification for Deformed and Plain Low-Alloy Steel Bars for Concrete Reinforcement (Includes all amendments and changes 2/22/2023).

G8-24

Standard Test Methods for Cathodic Disbonding of Coated Steel