Aggregate influence on chloride ion diffusion into concrete

Authors
Hobbs, DW
Citation
Dw. Hobbs, Aggregate influence on chloride ion diffusion into concrete, CEM CONCR R, 29(12), 1999, pp. 1995-1998
Citations number
8
Categorie Soggetti
Material Science & Engineering
Journal title
CEMENT AND CONCRETE RESEARCH
ISSN journal
00088846 → ACNP
Volume
29
Issue
12
Year of publication
1999
Pages
1995 - 1998
Database
ISI
SICI code
0008-8846(199912)29:12<1995:AIOCID>2.0.ZU;2-4
Abstract
An attempt is made to predict the probable effect of the aggregate on chlor ide ion diffusion into saturated concrete. It is shown that if the chloride ion diffusion coefficient of an aggregate ranges from 0.2 to 10 times that of the cement paste matrix, then this could result in variations in the co ncrete chloride ion diffusion coefficient of up to 10:1. Such a variation i s equivalent to a change in free water-cement ratio from 0.77 to 0.45. (C) 2000 Elsevier Science Ltd. All rights reserved.