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Influence of concrete composition on the transport of chloride ions in concrete



Title: Influence of concrete composition on the transport of chloride ions in concrete
Author(s): M. Salta
Paper category : conference
Book title: Third International RILEM Workshop on Testing and Modelling Chloride Ingress into Concrete
Editor(s): C. Andrade and J. Kropp
Print-ISBN: 2-912143-48-9
e-ISBN: 2912143578
Publisher: RILEM Publications SARL
Publication year: 2004
Pages: 395 - 415
Total Pages: 21
Nb references: 9
Language: English


Abstract: The influence of concrete composition on the ingress of chloride ions under marine atmosphere, submerged and splash seawater environments has been evaluated for eight concrete mixtures. Characterisation of concrete mixtures has been made at 28 days of age involving performance properties related with the resistance to chloride ingress: resistivity, charge transported under an electrical field, capillary absorption and chloride diffusion coefficients in non-steady-state accelerated (diffusion or migration) conditions. Concrete specimens have been exposed in marine environments and chloride ingress has been measured after 6 months of exposure.This paper correlates the results from concrete performance properties measured at 28 days with composition parameters (W/C ratio, cement content and compressive strength) and with the achieved chloride diffusion coefficients of concrete mixtures estimated after 6 months of natural exposure using an analytical solution of Fick´s 2nd law of diffusion.


Online publication: 2002-12-15
Publication type : full_text
Public price (Euros): 0.00
doi: 10.1617/2912143578.026