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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: Long-Term Influence of Fly Ash on Chloride-Induced Corrosion
Author(s): Peter SchieBl and Udo Wiens
Publication: Special Publication
Appears on pages(s): 1-22
Keywords: Blast-furnace slag; chlorides; concrete; corrosion; diffusion; durability;
fly ash; porosity.
Abstract:The durability of reinforced concrete structures has been acquiring an increasing degree of emphasis in research activities. The development of concrete mixtures with regard to different attacks imposed on concrete structures by climatic influences plays a decisive role in this context. Under certain conditions, the performance of these concretes can be increased by using pozzolanic additions, such as fly ash or blast-furnace slag, as cementitious components. This publication intends to summarise the influence of these cementitious components on important processes contributing to chloride-induced corrosion. Diffusion and corrosion cells were used to examine the diffusion resistance and corrosion rate of mortars and concretes containing up to 60 mass.% of fly ash and up to 75 mass.% of blast-furnace slag in relation to the total content of cementitious binders. The results of pore structure investigations were also employed in order to clarify the influence of these cementitious components on ion transport in the microstructure of the concrete.
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