Rehabilitation of corroding concrete by electrolytic re-alkali sation

P. F G Banfill

doi:10.4324/9781315025018

Rehabilitation of corroding concrete by electrolytic re-alkali sation

P. F G Banfill^*

^*Corresponding author for this work

School of Energy, Geoscience, Infrastructure and Society

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

Electrochemical re-alkalisation is increasingly popular as a means of rehabilitating carbonated reinforced concrete in which the steel is at risk of corrosion. In addition to repassivating the steel, passage of electric current and the associated migration of electrolyte solution could change the properties of the concrete. The evidence available suggests that the risks of potentially harmaful side effects on the mechanical properties and pore structure of the concrete have been exaggerated. However, further confirmation that there are no adverse effects on alkali-silica reactivity and durability is still required.

Original language	English
Title of host publication	Durability of Building Materials and Components 7
Publisher	Taylor & Francis
Pages	1312-1319
Number of pages	8
Volume	2
ISBN (Print)	9781315025018
DOIs	https://doi.org/10.4324/9781315025018
Publication status	Published - 1996

Keywords

Alkali-silica reaction
Carbonation
Concrete properties
Corrosion
Durability
Re-alkalisation

ASJC Scopus subject areas

General Engineering
General Arts and Humanities

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10.4324/9781315025018

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abstract = "Electrochemical re-alkalisation is increasingly popular as a means of rehabilitating carbonated reinforced concrete in which the steel is at risk of corrosion. In addition to repassivating the steel, passage of electric current and the associated migration of electrolyte solution could change the properties of the concrete. The evidence available suggests that the risks of potentially harmaful side effects on the mechanical properties and pore structure of the concrete have been exaggerated. However, further confirmation that there are no adverse effects on alkali-silica reactivity and durability is still required.",

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AB - Electrochemical re-alkalisation is increasingly popular as a means of rehabilitating carbonated reinforced concrete in which the steel is at risk of corrosion. In addition to repassivating the steel, passage of electric current and the associated migration of electrolyte solution could change the properties of the concrete. The evidence available suggests that the risks of potentially harmaful side effects on the mechanical properties and pore structure of the concrete have been exaggerated. However, further confirmation that there are no adverse effects on alkali-silica reactivity and durability is still required.

KW - Alkali-silica reaction

KW - Carbonation

KW - Concrete properties

KW - Corrosion

KW - Durability

KW - Re-alkalisation

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DO - 10.4324/9781315025018

M3 - Conference contribution

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EP - 1319

BT - Durability of Building Materials and Components 7

PB - Taylor & Francis

ER -

Rehabilitation of corroding concrete by electrolytic re-alkali sation

Abstract

Keywords

ASJC Scopus subject areas

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