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GB/T 18226-2025Specification for steel component anticorrosion of highway traffic engineering (English PDF)

公路交通工程钢构件防腐技术条件

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

August 29, 2025

Implementation date

March 1, 2026

Scope

GB/T 18226-2025 is the English-translated version of 公路交通工程钢构件防腐技术条件.

GB/T 18226-2025 is the Chinese standard "Specification for steel component anticorrosion of highway traffic engineering".

Its scope clause reads: This document specifies the classification, general requirements, technical requirements and test methods of anti-corrosion coatings for corrosion protection of steel structures in highway traffic engineering.

This document applies to the corrosion protection of steel components in highway traffic engineering projects. Its clauses include terms and definitions.

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Document preview — GB/T 18226-2025

National Standard of the People's Republic of China

ICS: 25.220
Classification: A 29
Replacing: GB/T 18226-2015

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

Preface
1 Scope
2 Normative references
3 Terms and Definitions
4 Anti-corrosion coating classification
5 General Requirements
6 Technical Requirements
7 Test methods
Appendix A (Informative) Performance requirements and test methods for anti-corrosion coatings on other steel components
Appendix B (Normative) Test method for adhesion of hot-dip aluminum coating
Appendix C (Normative) Test method for uniformity of hot-dip aluminum coating
Appendix D (Normative) Test method for adhesion of metal coatings
Appendix E (Normative) Cathodic Disbonding Resistance Test Method

1 Scope

This document specifies the classification, general requirements, technical requirements and test methods of anti-corrosion coatings for corrosion protection of steel structures in highway traffic engineering.

This document applies to the corrosion protection of steel components in highway traffic engineering projects.

2 Normative references

The contents of the following documents constitute the essential clauses of this document through normative references in this document.

For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to

This document.

GB/T 470-2008 Zinc ingot

GB/T 1196-2023 Aluminium ingots for remelting

GB/T 1630.1 Plastics epoxy resins Part 1.Nomenclature

GB/T 1732 Determination of impact resistance of paint films

GB/T 1740 Determination of resistance to moisture and heat of paint films

GB/T 1768 Paints and varnishes - Determination of abrasion resistance - Rotating rubber grinding wheel method

GB/T 1839 Test methods for quality of zinc coating on steel products

GB/T 4956 Measurement of coating thickness of non-magnetic coatings on magnetic substrates - Magnetic method

GB/T 9286 Paints and varnishes cross-cut test

GB/T 10125 Artificial atmosphere corrosion test Salt spray test

GB/T 11547 Plastics - Determination of resistance to liquid chemical reagents

GB/T 18684-2002 Technical requirements for zinc-chromium coatings

GB/T 22040 Weather resistance requirements and test methods for plastic products used in highway facilities

GB/T 24514 Determination of mass and chemical composition of zinc-based and (or) aluminum-based coatings per unit area on steel surface - Gravimetric method, inductive coupling method

Hybrid plasma atomic emission spectrometry and flame atomic absorption spectrometry

GB/T 26035 Flake zinc powder

GB/T 31586.2 Evaluation of adhesion/cohesion (destructive strength) of protective coatings for steel structures using protective coating systems

Acceptance criteria Part 2.Cross-cut test and cross-cut test

JT/T 600.2 Anti-corrosion powder paints and coatings for highways Part 2.Thermoplastic polyethylene (PE) powder paints and coatings

JT/T 600.3 Anti-corrosion powder paints and coatings for highways Part 3.Thermoplastic polyvinyl chloride (PVC) powder paints and coatings

JT/T 600.4 Anti-corrosion powder paints and coatings for highways Part 4.Thermosetting polyester powder paints and coatings

YB/T 4761 Continuously hot-dip galvanized aluminum-magnesium alloy coated steel sheet and strip

YS/T 310-2021 Zinc alloy ingots for hot-dip coating

3 Terms and Definitions

The following terms and definitions apply to this document.

GB/T 19350 | GB/T 19349 | GB/T 18838.3 | GB/T 19824 | GB/T 11372 | […]

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 34 pages — is available in the English PDF.

Referenced standards

Normative references

Cited by

Editions of GB/T 18226

Edition	Title	Revision	Status
GB/T 18226-2025	Specification for steel component anticorrosion of highway traffic engineering	current edition	Current
GB/T 18226-2015	Specification for steel component anticorrosion of highway engineering	previous edition	In force
GB/T 18226-2000	Highway Traffic engineering technical conditions of the steel component anticorrosion	previous edition	Obsolete

This page sells the current edition, GB/T 18226-2025. Earlier editions are listed for reference only.

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