ISO 21062:2020
Corrosion of metals and alloys — Determination of the corrosion rates of embedded steel reinforcement in concrete exposed to simulated marine environments
This document specifies the apparatus, materials, specimen preparation, procedures, results and reports for comparing the corrosion rates of steel reinforcement bars in concrete in simulated marine and coastal environments.
This document is not applicable to galvanized steel reinforcement. It gives guidelines for material selection in corrosion design.
In order to illustrate the methodology, Annex A provides examples of experimental results.
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Apparatus
5 Test materials
6 Preparation of specimens
6.1 Reinforcing steel cleaning
6.2 Reinforcing steel coating ends
6.3 Adding industrial salt
6.4 Making concrete specimens
7 Test procedure
7.1 Initial performance test
7.1.1 Mechanical properties and chemical compositions of reinforcing bars
7.1.2 Mass
7.1.3 Dimensions
7.1.4 Concrete strength
7.2 Test data recording
7.2.1 Test time
7.2.2 Cracks record
7.3 Breaking of specimens
7.3.1 General
7.3.2 Mechanical properties
7.3.3 Mass
7.3.4 Dimensions
8 Test result
8.1 Mass loss rate of test bar
8.2 Average mass loss rate of test bar
8.3 Ratio of the mass loss rate of the benchmark bar and the test bar
8.4 Average ratio of the mass loss rate of the benchmark bar and the test bar
9 Test report
Annex A (informative) Examples of experimental results
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Apparatus
5 Test materials
6 Preparation of specimens
6.1 Reinforcing steel cleaning
6.2 Reinforcing steel coating ends
6.3 Adding industrial salt
6.4 Making concrete specimens
7 Test procedure
7.1 Initial performance test
7.1.1 Mechanical properties and chemical compositions of reinforcing bars
7.1.2 Mass
7.1.3 Dimensions
7.1.4 Concrete strength
7.2 Test data recording
7.2.1 Test time
7.2.2 Cracks record
7.3 Breaking of specimens
7.3.1 General
7.3.2 Mechanical properties
7.3.3 Mass
7.3.4 Dimensions
8 Test result
8.1 Mass loss rate of test bar
8.2 Average mass loss rate of test bar
8.3 Ratio of the mass loss rate of the benchmark bar and the test bar
8.4 Average ratio of the mass loss rate of the benchmark bar and the test bar
9 Test report
Annex A (informative) Examples of experimental results