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Crack Bridging by Surface Treatments to Concrete

Keer, J. G. / Le Page, B. H.

Cracks offer an easy path for the ingress of water and chlorides into concrete. In certain situations on bridge structures, coatings which are capable of bridging over cracks and maintaining a continuous film are desirable. Although the relationship between crack width and corrosion has been the subject of debate, it is argued that a crack-bridging coating is preferable in critical situations. Current tests in the UK which can be used to assess crack-bridging ability are reviewed. West German tests and specifications are also summarised and form a good basis for the development of better UK test methods and specifications for crack bridging. The need for further work on the effect of cracks on hydrophobic surface treatments is highlighted.

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Crack Bridging by Surface Treatments to Concrete

Keer, J. G. / Le Page, B. H.

Cracks offer an easy path for the ingress of water and chlorides into concrete. In certain situations on bridge structures, coatings which are capable of bridging over cracks and maintaining a continuous film are desirable. Although the relationship between crack width and corrosion has been the subject of debate, it is argued that a crack-bridging coating is preferable in critical situations. Current tests in the UK which can be used to assess crack-bridging ability are reviewed. West German tests and specifications are also summarised and form a good basis for the development of better UK test methods and specifications for crack bridging. The need for further work on the effect of cracks on hydrophobic surface treatments is highlighted.

Crack Bridging by Surface Treatments to Concrete

Keer, J. G. / Le Page, B. H.

Cracks offer an easy path for the ingress of water and chlorides into concrete. In certain situations on bridge structures, coatings which are capable of bridging over cracks and maintaining a continuous film are desirable. Although the relationship between crack width and corrosion has been the subject of debate, it is argued that a crack-bridging coating is preferable in critical situations. Current tests in the UK which can be used to assess crack-bridging ability are reviewed. West German tests and specifications are also summarised and form a good basis for the development of better UK test methods and specifications for crack bridging. The need for further work on the effect of cracks on hydrophobic surface treatments is highlighted.

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Title:

Crack Bridging by Surface Treatments to Concrete

Contributors:

Harding, J. E. (editor) / Parke, G. A. R. (editor) / Ryall, M. J. (editor) / Keer, J. G. (author) / Le Page, B. H. (author)

Published in:

Bridge Management ; Chapter: 21 ; 233-241

Publication date:

1990-01-01

Size:

9 pages

ISBN:

978-1-4899-7232-3 , 978-0-419-16050-2

DOI:

https://doi.org/10.1007/978-1-4899-7232-3_21

Type of media:

Article/Chapter (Book)

Type of material:

Electronic Resource

Language:

English

Keywords:

Surface Treatment , Crack Width , Concrete Bridge , Silane Treatment , Chloride Ingress Engineering , Civil Engineering

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