Chloride ingress in cement paste and mortar

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

doi:10.1016/S0008-8846(99)00131-3

Chloride ingress in cement paste and mortar

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

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96 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 language	English
Pages (from-to)	1497-1504
Number of pages	8
Journal	Cement and Concrete Research
Volume	29
Issue number	9
DOIs	https://doi.org/10.1016/S0008-8846(99)00131-3
Publication status	Published - Sept 1999

Keywords

EDX
diffusion
chloride
high-performance concrete
EPMA

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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. (C) 1999 Elsevier Science Ltd. All rights reserved.",

keywords = "EDX, diffusion, chloride, high-performance concrete, EPMA",

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T1 - Chloride ingress in cement paste and mortar

AU - Jensen, O M

AU - Hansen, P F

AU - Coats, A M

AU - Glasser, F. P.

PY - 1999/9

Y1 - 1999/9

N2 - 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.

AB - 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.

KW - EDX

KW - diffusion

KW - chloride

KW - high-performance concrete

KW - EPMA

U2 - 10.1016/S0008-8846(99)00131-3

DO - 10.1016/S0008-8846(99)00131-3

M3 - Article

SN - 0008-8846

VL - 29

SP - 1497

EP - 1504

JO - Cement and Concrete Research

JF - Cement and Concrete Research

IS - 9

ER -

Chloride ingress in cement paste and mortar

Abstract

Keywords

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