Drying brick masonry by electro-osmosis

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Abstract

When a fine grained, porous medium is applied an electric DC field, transport of matter occurs, and the transport mechanism in focus of the present study is electro-osmosis, which is transport of water. In laboratory it was shown possible to transport water inside a brick and brick/mortar system in an applied electric field. Electrodes have been constructed and placed inside an old house with moisture problems from capillary rise of water. The water content of the experimental wall was about 14%(weight). The electro-osmotic effect was even more pronounced here than in the in the laboratory, and a clear movement of water towards the cathode was seen. Thus the basis for utilizing the electro-osmotic effect for drying brick masonry is present, but proper electrodes still needs to be developed.
Original languageEnglish
Title of host publication“Masonry (10)”, Proceedings of the Seventh International Masonry Conference
VolumeCD rom
Place of PublicationBritish Masonry Society
PublisherBritish Masonry Society
Publication date2006
Publication statusPublished - 2006
Event7th International Masonry Conference - London, United Kingdom
Duration: 30 Oct 20061 Nov 2006
Conference number: 7
http://www.masonry.org.uk/masonry/events/events_archive/7th_international_masonry_conference_2006_7imc

Conference

Conference7th International Masonry Conference
Number7
CountryUnited Kingdom
CityLondon
Period30/10/200601/11/2006
Internet address

Cite this

Ottosen, L. M., & Rörig-Dalgaard, I. (2006). Drying brick masonry by electro-osmosis. In “Masonry (10)”, Proceedings of the Seventh International Masonry Conference (Vol. CD rom). British Masonry Society: British Masonry Society.