Modelling the influence of steel fibres on the electrical resistivity of cementitious composites

Anders Ole Stubbe Solgaard, Alexander Michel, Henrik Stang, Mette Rica Geiker, André Küter, Carola Edvardsen

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Abstract

One of the governing factors on the corrosion of embedded reinforcement is the electrical resistivity of the concrete. The combination of steel fibres and conventional reinforcement bars has been used in a number of structures. However, the addition of electrical con-ductive fibres might influence the overall resistivity of the material and thereby the corrosion rate of the embedded reinforcement. To the knowledge of the authors, only preliminary studies have been made on the influence of corrosion of the reinforcement bars from the addition of the electrical conductive steel fibres. Thus the present work concerns the electrical resistivity of cementitious composites and some of the parameters influencing it in order to get a more thorough understanding of the factors governing the overall resistivity. The basis of the present study is an experimental investigation of the electrical resistivity of steel fibre reinforced concrete (SFRC). The parameters investigated in the following are the fibre geometry, the fibre volume and the transitional resistance. On basis of the experimental results, a model, taking the resistivity of the fibres and the concrete matrix into account is proposed.
Original languageEnglish
Title of host publication3rd International PhD Workshop on Modelling the Durability of reinforced Concrete
Publication date2009
Publication statusPublished - 2009
Event3rd International RILEM PhD Student Workshop on Modelling the Durability of Reinforced Concrete - University of Minho, Guimaraes, Portugal
Duration: 22 Oct 200924 Oct 2009
Conference number: 3
http://www.rilem.net/gene/main.php?base=500218&id_publication=73

Conference

Conference3rd International RILEM PhD Student Workshop on Modelling the Durability of Reinforced Concrete
Number3
LocationUniversity of Minho
CountryPortugal
CityGuimaraes
Period22/10/200924/10/2009
Internet address

Cite this

Solgaard, A. O. S., Michel, A., Stang, H., Geiker, M. R., Küter, A., & Edvardsen, C. (2009). Modelling the influence of steel fibres on the electrical resistivity of cementitious composites. In 3rd International PhD Workshop on Modelling the Durability of reinforced Concrete