ASTM A1055/A1055M-22 - 1.9.2022
 
1. 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.

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.

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

1.10?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(2024)

Standard Test Method for Chemical Resistance of Pipeline Coatings

B117-26

Standard Practice for Operating Salt Spray (Fog) Apparatus

G8-24

Standard Test Methods for Cathodic Disbonding of Coated Steel

E527-23

Standard Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)

E29-22

Standard Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications

D4060-25

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

B833-20(2025)

Standard Specification for Zinc and Zinc Alloy Wire for Thermal Spraying (Metallizing) for the Corrosion Protection of Steel

A944-22

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

Voluntary Certification Program

for Fusion Bonded Epoxy Coating Applicator Plants

ACI 301

Specifications for Structural Concrete

A706/A706M-26

Standard Specification for Deformed and Plain Low-Alloy Steel Bars for Concrete Reinforcement

A615/A615M-26

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

SSPC-VIS 1

Pictorial Surface Preparation standards for Painting Steel Surfaces

RP-287

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

AWS C2.25/C2.25M

Specification for Thermal Spray Feedstock--Solid and Composite Wire and Ceramic Rods

G62-23

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

A996/A996M-24

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

G14-04(2024)

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