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 language | English |
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Title of host publication | Nordic Concrete Research : Proceedings Nordic Concrete Research Meeting |
Editors | Terje Kanstad, Einar Aassved Hansen |
Place of Publication | Oslo, Norway |
Publisher | Norsk Betongforening |
Publication date | 2005 |
Edition | 1. |
ISBN (Print) | 82-91341-91-5 |
Publication status | Published - 2005 |
Event | 19th Symposium on Nordic Concrete Research & Development: A meeting place for research and practice - Sandefjord, Norway Duration: 13 Jun 2005 → 15 Jun 2005 |
Conference
Conference | 19th Symposium on Nordic Concrete Research & Development |
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Country/Territory | Norway |
City | Sandefjord |
Period | 13/06/2005 → 15/06/2005 |