Corrosion of Steel in Concrete – Specimen Design for Investigation of Interface and Bulk Conversions during Curing and Exposure

Andre Küter, Per Møller, Mette Rica Geiker

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearch

Abstract

A reinforced mortar specimen that allows electromotive force (EMF) measurements and electrochemical impedance spectroscopy (EIS) was designed and tested. The specimen consists of a mortar cylinder with a central rebar and a concentric arrangement of embedded electrode wires. The wires can act as both reference and counter electrode during EIS and the arrangement allows investigation of local changes in the bulk mortar by measuring the EMF of each wire versus an external standard electrode. The state of corrosion of the rebar can be investigated by EIS and EMF. EIS can be performed before submersion as external electrodes are not required. Qualitative changes of the EMF between the internal electrodes and the rebar can also be monitored immediately after preparation.
Original languageEnglish
Title of host publicationNordic Concrete Research : Proceedings Nordic Concrete Research Meeting
EditorsTerje Kanstad, Einar Aassved Hansen
Place of PublicationOslo, Norway
PublisherNorsk Betongforening
Publication date2005
Edition1.
ISBN (Print)82-91341-91-5
Publication statusPublished - 2005
Event19th Symposium on Nordic Concrete Research & Development: A meeting place for research and practice - Sandefjord, Norway
Duration: 13 Jun 200515 Jun 2005

Conference

Conference19th Symposium on Nordic Concrete Research & Development
CountryNorway
CitySandefjord
Period13/06/200515/06/2005

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