Chloride ingress in cement paste and mortar

O M Jensen, P F Hansen, A M Coats, F. P. Glasser

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72 Citations (Scopus)

Abstract

In this paper chloride ingress in cement paste and mortar is followed by electron probe microanalysis. The influence of several paste and exposure parameters on chloride ingress are examined (e.g., water-cement ratio, silica fume addition, exposure time, and temperature), The measurements are modelled on Fick's law modified by a term for chloride binding. Inclusion of chloride binding significantly improves the profile shape of the modelled ingress profiles. The presence of fine aggregate and formation of interfacial transition zones at paste-aggregate boundaries does not significantly affect diffusion rates. (C) 1999 Elsevier Science Ltd. All rights reserved.

Original languageEnglish
Pages (from-to)1497-1504
Number of pages8
JournalCement and Concrete Research
Volume29
Issue number9
DOIs
Publication statusPublished - Sep 1999

Keywords

  • EDX
  • diffusion
  • chloride
  • high-performance concrete
  • EPMA

Cite this

Jensen, O. M., Hansen, P. F., Coats, A. M., & Glasser, F. P. (1999). Chloride ingress in cement paste and mortar. Cement and Concrete Research, 29(9), 1497-1504. https://doi.org/10.1016/S0008-8846(99)00131-3