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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: Reinforcement Corrosion and the Use of CSF-Based Additives
Author(s): Per Fidjestol
Publication: Special Publication
Appears on pages(s): 1445-1458
Keywords: carbonation; chlorides; concrete durability; silica; corrosion resistance; reinforcing steels; Materials Research
Abstract:Effect of silica addition on the corrosion of reinforcement in concrete is considered. Silica (SiO2) is added in various forms of refinement; however, when properly executed, the effects of the various means of addition should be similar. It is concluded that the use of silica at the worst will not influence the time for initiation of corrosion attack. In a number of cases though, silica will delay significantly or prevent corrosion attack. The use of CSF (condensed silica fume) in concrete slow down the rate of corrosion once corrosion is initiated. The only exception to this rule is corrosion in submerged concrete where corrosion rates are extremely small and CSF will make little difference. Paper discusses the corrosion rates in concrete above water, and concludes with a test program that will be performed, the results of which will complement the paper.
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