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Galvanic Action of Steel in Concrete

H. Arup

The report discusses the very real, but often overlooked problem of galvanic action between steel embedded in concrete and any external bare steel in electrolytic and metallic contact with the embedded steel. The first chapter presents the theoretical background and explains why diffusion of oxygen is the rate determining factor. Chapter two describes the experimental part, in which a number of test piles were driven in various soils and in sea water. The galvanic current from test electrodes in various depths were determined as a function of time and environment. Chapter three describes 13 practical cases, some representing a large number of similar failures. Chapter four discusses various means of preventing galvanic action in concrete/steel structures.

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Galvanic Action of Steel in Concrete

H. Arup

The report discusses the very real, but often overlooked problem of galvanic action between steel embedded in concrete and any external bare steel in electrolytic and metallic contact with the embedded steel. The first chapter presents the theoretical background and explains why diffusion of oxygen is the rate determining factor. Chapter two describes the experimental part, in which a number of test piles were driven in various soils and in sea water. The galvanic current from test electrodes in various depths were determined as a function of time and environment. Chapter three describes 13 practical cases, some representing a large number of similar failures. Chapter four discusses various means of preventing galvanic action in concrete/steel structures.

Galvanic Action of Steel in Concrete

H. Arup

The report discusses the very real, but often overlooked problem of galvanic action between steel embedded in concrete and any external bare steel in electrolytic and metallic contact with the embedded steel. The first chapter presents the theoretical background and explains why diffusion of oxygen is the rate determining factor. Chapter two describes the experimental part, in which a number of test piles were driven in various soils and in sea water. The galvanic current from test electrodes in various depths were determined as a function of time and environment. Chapter three describes 13 practical cases, some representing a large number of similar failures. Chapter four discusses various means of preventing galvanic action in concrete/steel structures.

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Title:

Galvanic Action of Steel in Concrete

Contributors:

H. Arup (author)

Publication date:

1977

Size:

40 pages

Type of media:

Report

Type of material:

No indication

Language:

English

Keywords:

Corrosion & Corrosion Inhibition , Construction Equipment, Materials, & Supplies , Construction Materials, Components, & Equipment , Reinforcing steels , Galvanic corrosion , Reinforced concrete , Corrosion prevention , Steels , Concrete structures , Foreign technology

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