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Title: Chloride ingress in cement paste and mortar

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.

Authors:
; ; ;
Publication Date:
Research Org.:
Technical Univ. of Denmark, Lyngby (DK)
OSTI Identifier:
20000441
Resource Type:
Journal Article
Journal Name:
Cement and Concrete Research
Additional Journal Information:
Journal Volume: 29; Journal Issue: 9; Other Information: PBD: Sep 1999; Journal ID: ISSN 0008-8846
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; CORROSION RESISTANCE; CEMENTS; MORTARS; CHLORIDES; DIFFUSION; ELECTRON MICROPROBE ANALYSIS; PARAMETRIC ANALYSIS; MATHEMATICAL MODELS; TIME DEPENDENCE

Citation Formats

Jensen, O.M., Hansen, P.F., Coats, A.M., and Glasser, F.P. Chloride ingress in cement paste and mortar. United States: N. p., 1999. Web. doi:10.1016/S0008-8846(99)00131-3.
Jensen, O.M., Hansen, P.F., Coats, A.M., & Glasser, F.P. Chloride ingress in cement paste and mortar. United States. doi:10.1016/S0008-8846(99)00131-3.
Jensen, O.M., Hansen, P.F., Coats, A.M., and Glasser, F.P. Wed . "Chloride ingress in cement paste and mortar". United States. doi:10.1016/S0008-8846(99)00131-3.
@article{osti_20000441,
title = {Chloride ingress in cement paste and mortar},
author = {Jensen, O.M. and Hansen, P.F. and Coats, A.M. and Glasser, F.P.},
abstractNote = {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.},
doi = {10.1016/S0008-8846(99)00131-3},
journal = {Cement and Concrete Research},
issn = {0008-8846},
number = 9,
volume = 29,
place = {United States},
year = {1999},
month = {9}
}