Chloride Ingress into Concrete under Water Pressure

Publication: Research - peer-reviewArticle in proceedings – Annual report year: 2011

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The chloride ingress into concrete under water pressures of 100 kPa and 800 kPa have been investigated by experiments. The specimens were exposed to a 10% NaCl solution and water mixture. For the concrete having w/c = 0.35 the experimental results show the chloride diffusion coefficient at 800 kPa (~8 atm.) is 12 times greater than at 100 kPa (~1 atm.). For w/c = 0.45 and w/c = 0.55 the chloride diffusion coefficients are 7 and 3 times greater. This means that a change in pressure highly influences the chloride ingress into the concrete and thereby the life length models for concrete structures.
Original languageEnglish
TitleNordic Concrete Research : Proceedings of XXI Nordic Concrete Research Symposium, Hämeenlinna, Finland 2011
Place of publicationOslo
PublisherNorsk Betongforening
Publication date2011
Pages207-210
StatePublished

Conference

Conference21st Nordic Concrete Research Symposium
Number21
CountryFinland
CityHämeenlinna
Period30/05/1101/06/11

Bibliographical note

Edited by The Nordic Concrete Federation.

Keywords

  • Water pressure, w/c-ratios, Chloride diffusion coefficient, Concrete
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