Durability of functionalized carbon structures with optical fiber sensors in a highly alkaline concrete environment

Show simple item record

dc.identifier.uri http://dx.doi.org/10.15488/5223
dc.identifier.uri https://www.repo.uni-hannover.de/handle/123456789/5270
dc.contributor.author Bremer, Kort
dc.contributor.author Alwis, Lourdes S.M.
dc.contributor.author Zheng, Yulong
dc.contributor.author Weigand, Frank
dc.contributor.author Kuhne, Michael
dc.contributor.author Helbig, Reinhard
dc.contributor.author Roth, Bernhard
dc.date.accessioned 2019-08-26T07:56:07Z
dc.date.available 2019-08-26T07:56:07Z
dc.date.issued 2019
dc.identifier.citation Bremer, K.; Alwis, L.S.M.; Zheng, Y.; Weigand, F.; Kuhne, M. et al.: Durability of functionalized carbon structures with optical fiber sensors in a highly alkaline concrete environment. In: Applied Sciences 9 (2019), Nr. 12, 476. DOI: https://doi.org/10.3390/app9122476
dc.description.abstract The paper presents an investigation into the durability of functionalized carbon structures (FCS) in a highly alkaline concrete environment. First, the suitability of optical fibers with different coatings-i.e., acrylate, polyimide, or carbon-for the FCS was investigated by subjecting fibers with different coatings to micro/macro bending and a 5% sodium hydroxide (NaOH) (pH 14) solution. Then, the complete FCS was also subjected to a 5% NaOH solution. Finally, the effects of spatial variation of the fiber embedded in the FCS and the bonding strength between the fiber and FCS was evaluated using different configurations -i.e., fiber integrated into FCS in a straight line and/or with offsets. All three coatings passed the micro/macro bending tests and show degradation after alkaline exposure, with the carbon coating showing least degradation. The FCS showed relative stability after exposure to 5% NaOH. The optimum bonding length between the optical fiber and the carbon filament was found to be ≥ 150 mm for adequate sensitivity. eng
dc.language.iso eng
dc.publisher Basel : MDPI AG
dc.relation.ispartofseries Applied Sciences 9 (2019), Nr. 12
dc.rights CC BY 4.0 Unported
dc.rights.uri https://creativecommons.org/licenses/by/4.0/
dc.subject Carbon reinforced concrete (CRC) eng
dc.subject Fiber optic sensor (FOS) eng
dc.subject Functionalized carbon structure (FCS) eng
dc.subject Optical glass fiber eng
dc.subject Structural health monitoring (SHM) eng
dc.subject.ddc 600 | Technik ger
dc.title Durability of functionalized carbon structures with optical fiber sensors in a highly alkaline concrete environment
dc.type article
dc.type Text
dc.relation.issn 2076-3417
dc.relation.doi https://doi.org/10.3390/app9122476
dc.bibliographicCitation.issue 12
dc.bibliographicCitation.volume 9
dc.bibliographicCitation.firstPage 476
dc.description.version publishedVersion
tib.accessRights frei zug�nglich


Files in this item

This item appears in the following Collection(s):

Show simple item record

 

Search the repository


Browse

My Account

Usage Statistics