ASTM A1055/A1055M - 16 - Standard Specification for Zinc and Epoxy Dual-Coated Steel Reinforcing Bars

ASTM A1055/A1055M - 16

Standard Specification for Zinc and Epoxy Dual-Coated Steel Reinforcing Bars

Status : Current   Published : January 2016



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.

(A) UNS designations were established in accordance with Practice E527.
(B) In accordance with ANSI/AWS A5.33.
(C) The following applies to all specified limits in this table. For the purposes of determining conformance with this specification, an observed value obtained from analysis shall be rounded off to the nearest unit in the last right-hand place of figures used in expressing the limiting value, in accordance with the rounding method of Practice E29.
(D) … indicates that the element is not applicable.
(E) (…) indicates no Unified Numbering System (UNS) designation for this option.

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.

(A) Pin diameters specified for similar size (shown on the same line) inch-pound bars and metric may be interchanged.
(B) Bar designation Nos. 9, 10, 11, 14, and 18 [29, 32, 36, 43, and 57] are not covered by Specification A996/A996M.

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.

Standard NumberASTM A1055/A1055M - 16
TitleStandard Specification for Zinc and Epoxy Dual-Coated Steel Reinforcing Bars
Publication Date12 January 2016
Normative References(Required to achieve compliance to this standard)No other standards are normatively referenced
Informative References(Provided for Information)No other standards are informatively referenced
Descriptors coating requirements, concrete reinforcement, continuous hot-dip galvanized, corrosion resistance, dual coated, epoxy coating, galvanizing, steel bars, thermal spray coating (metallization), zinc-alloy coating
File Size150 KB

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