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Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: Chloride and Oxygen Permeability of Concrete Incorporating Fly Ash and Silica Fume in Ternary Systems
Author(s): C. J. Lynsdale and M. I. Khan
Publication: Special Publication
Appears on pages(s): 739-753
Keywords: fly ash; high-performance concretes; oxygen; permeability; silica fume
Abstract:The results presented in this paper form part of an investigation into the optimisation of ternary blend systems based on normal portland cement, fly ash and silica fume, for the development of high performance concrete. Chloride permeability and oxygen permeability values at the age of 7, 28, 90 and 180 days of concrete containing portland cement, fly ash and silica fume are reported. Fly ash, up to 40%, and silica fume, up to 15%, were incorporated as partial cement replacements for the preparation of various combinations of ternary blended systems. A water-binder ratio of .27 was used for the main group of mixtures. Two other water-binder ratios, .40and .50 were used with selected concrete mixtures to show the effect of this parameter. Based on the experimentally obtained results, prediction models were developed. These enabled the establishment of isoresponse contours showing the interaction between the various parameters investigated.
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