Study on lithium migration for electrochemical treatment of concrete affected by alkali-silica reaction
bookPart
Alkali-silica reaction (ASR) is one of the major durability problems in concrete and affects many
structures worldwide. Nevertheless, currently, there are no definite treatments to stop it once it has star ted.
Lithium is known to have beneficial effects on ASR. Indeed, the use of lithium-based admixtures has been
acknowledged as a preventive method for over 50 years. Nevertheless, in existing structures, this is no longer
possible: lithium ions need to be driven into the concrete and ionic migration is the most effective transport
method. Although several studies have been conducted on the use of migration to transport lithium ions into
concrete, so far, there is no agreement on the conclusions. It is still necessary to fully understand lithium migration
into concrete before developing a possible treatment against ASR. This study aims to investigate lithium
migration through experimental testing and modelling.
structures worldwide. Nevertheless, currently, there are no definite treatments to stop it once it has star ted.
Lithium is known to have beneficial effects on ASR. Indeed, the use of lithium-based admixtures has been
acknowledged as a preventive method for over 50 years. Nevertheless, in existing structures, this is no longer
possible: lithium ions need to be driven into the concrete and ionic migration is the most effective transport
method. Although several studies have been conducted on the use of migration to transport lithium ions into
concrete, so far, there is no agreement on the conclusions. It is still necessary to fully understand lithium migration
into concrete before developing a possible treatment against ASR. This study aims to investigate lithium
migration through experimental testing and modelling.
TNO Identifier
514664
Publisher
CRC Press
Source title
Concrete Solutions 2014
Editor(s)
Grantham, M.
Pages
658-664
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