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ASTM A1055 / A1055M - 16
Standard Specification for Zinc and Epoxy Dual-Coated Steel Reinforcing Bars
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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.
This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.
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 and health practices and determine the applicability of regulatory limitations prior to use.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
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
D4417 Test Methods for Field Measurement of Surface Profile of Blast Cleaned Steel
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)
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
American Welding Society
ANSI/AWSA5.33 AWSC2.25/C2.25M Specification for Thermal Spray FeedstockSolid and Composite Wire and Ceramic RodsAmerican Concrete Institute Standard
ACI 301 Specifications for Structural ConcreteSociety for Protective Coatings Specifications
SSPC-PA 2 Measurement of Dry Coating Thickness with Magnetic Gages SSPC-SP 10 Near-White Blast Cleaning SSPC-VIS 1 Pictorial Surface Preparation Standards for Painting Steel SurfacesICS Code
ICS Number Code 25.220.40 (Metallic coatings); 25.220.60 (Organic coatings)
UNSPSC Code
UNSPSC Code 30103623(Reinforcing bar or rebar or mesh)
Referencing This Standard
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DOI: 10.1520/A1055_A1055M-16
Citation Format
ASTM A1055 / A1055M-16, Standard Specification for Zinc and Epoxy Dual-Coated Steel Reinforcing Bars, ASTM International, West Conshohocken, PA, 2016, www.astm.org
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