Experimental investigation of the lithium transport mechanisms in cementitious materials by NMR

S. Venglovska, L. Pel, O.C.G. Adan

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

Abstract

Lithium hydroxide can help to reduce and control the expansion of concrete caused by Alkalisilica reaction. In new concrete structures the lithium ions can be introduced as admixture to prevent ASR deleterious expansion. In existing structures the lithium ions need to be transported into the cementitious matrix by diffusion or electromigration. In this study, NMR was applied to study lithium ion diffusion and electromigration in mortar sample. Lithium concentration profiles were measured at different times after treatments. The effective lithium diffusion coefficient was calculated using experimental data. After electromigration the concentration of ions within the specimen were analysed using an ion chromatograph (IC). The results of the present study show that NMR able to determine the lithium concentration and distribution in the pore solution in the mortar sample. The measurement technique is relatively quick and non-destructive. This capacity to define the distribution of lithium in the cement or concrete sample is suitable technique for monitoring the movement of lithium concentration within sample.

Original languageEnglish
Title of host publicationLife-cycle of engineering systems
Subtitle of host publicationemphasis on sustainable civil infrastructure - 5th International Symposium on Life-Cycle Engineering, IALCCE 2016
EditorsJ. Bakker, D.M. Frangopol, K. van Breugel
PublisherCRC Press/Balkema
Pages2252-2255
Number of pages4
ISBN (Electronic)978-1-4987-7701-8
ISBN (Print)9781138028470
DOIs
Publication statusPublished - 2017
Event5th International Symposium on Life-Cycle Engineering (IALCCE 2016) - Delft, Netherlands
Duration: 16 Oct 201619 Oct 2016
Conference number: 5
http://www.ialcce2016.org/

Conference

Conference5th International Symposium on Life-Cycle Engineering (IALCCE 2016)
Abbreviated titleIALCCE 2016
CountryNetherlands
CityDelft
Period16/10/1619/10/16
Internet address

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  • Cite this

    Venglovska, S., Pel, L., & Adan, O. C. G. (2017). Experimental investigation of the lithium transport mechanisms in cementitious materials by NMR. In J. Bakker, D. M. Frangopol, & K. van Breugel (Eds.), Life-cycle of engineering systems: emphasis on sustainable civil infrastructure - 5th International Symposium on Life-Cycle Engineering, IALCCE 2016 (pp. 2252-2255). CRC Press/Balkema. https://doi.org/10.1201/9781315375175-331