The influence of the anolyte solution type and concentration on lithium migration in mortar specimens

Electrochemical lithium migration has been suggested as repair technique for alkali-silica reaction affected concrete structure. In this method, an electric field is used to transport lithium into the material. Current studies have used anolyte solutions with various lithium salts at different concentrations. However, little has been said on the...

Lithium migration in a two-chamber set-up as treatment against expansion due to alkali–silica reaction

Alkali–silica reaction (ASR) affects numerous concrete structures worldwide. However, the intervention options for ASR in existing structures are limited. Lithium is proposed to suppress expansion. In this paper, an investigation on two-chamber lithium migration as treatment against ASR is presented. First, the influence of different levels of...

The effect of an embedded cathode on lithium migration in mortar specimens

The currently available treatment techniques for concrete structures affected by alkali-silica reaction (ASR) are limited and electrochemical lithium migration has been proposed as an alternative. Lithium compounds have shown to have beneficial effects on ASR expansion when used as admixtures to fresh concrete. During the electrochemical...

Lithium migration on mortar specimens with embedded cathode

Alkali-Silica Reaction (ASR) is a durability problem that affects numerous concrete structures woridwide. As the reaction progresses. it might lead to deleterious expansion and cracking. The addition of lithium into fresh concrete is already acknowledged as a preventive method. In existing structures, however, lithium would need to be driven...

Study on lithium migration for electrochemical treatment of concrete affected by alkali-silica reaction

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...

Studies on electrochemical lithium migration for remediation of Alkali-Silica reaction at macro level in concrete structures

Alkali-silica reaction (ASR) is a deleterious mechanism known to affect several concrete structures worldwide. During this process, alkali ions present in the pore solution react with reactive components of the aggregate particle and, as a result a hygroscopic gel is formed. The produced gel absorbs water from the surrounding cement paste and...