Print Email Facebook Twitter Lithium migration in a two-chamber set-up as treatment against expansion due to alkali–silica reaction Title Lithium migration in a two-chamber set-up as treatment against expansion due to alkali–silica reaction Author Souza, L.M.S. Polder, R.B. Çopuroğlu, O. Publication year 2017 Abstract 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 ASR development on lithium migration is studied. Results show that ASR development, if not followed by enough crack formation, hinders migration due to increase in resistivity. Second, the effects of different treatments, such as sodium and potassium removal, lithium migration (combined with the associated sodium and potassium removal) and lithium diffusion, on ASR expansion were evaluated. Lithium migration led to the lowest post-treatment expansion levels. © 2016 Elsevier Ltd Subject Fluid & Solid MechanicsSR - Structural ReliabilityTS - Technical SciencesBuildings and InfrastructuresArchitecture and Building2015 UrbanisationAlkali–silica reaction (ASR)ConcreteLithiumMigrationTreatment To reference this document use: http://resolver.tudelft.nl/uuid:b421af9c-1e45-4b9b-8bcc-a597b7fdce91 DOI https://doi.org/10.1016/j.conbuildmat.2016.12.052 TNO identifier 575680 Publisher Elsevier Ltd ISSN 0950-0618 Source Construction and Building Materials, 134, 324-335 Document type article Files To receive the publication files, please send an e-mail request to TNO Library.