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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: Influence of corrosion on steel to concrete bond
Author(s): Garcia Alonso, M.D.; Gutiérrez Jiménez, J.P.; Rodríguez Santiago, J.
Appears on pages(s): 23 - 40
Abstract:The present paper deals with the influence of corrosion on steel-to-concrete bond from two different standpoints. Firstly, a theoretical model to estimate the residual bond capacity before the concrete cover is cracked by corrosion is proposed. The model is based on the stress and strain analysis of a thick-wall concrete ring subjected to increasing inner pressure. Secondly, an experimentation aimed to study the bond capacity after the appearance of corrosion cracks in presented. Pull-out tests on prismatic concrete specimens reinforced in all four corners were carried out. Different levels of corrosion were reached (producing cracks widths ranging from 0.1 mm to 0.4 mm). and various amounts of transverse reinforcement were arranged. Finally, bearing in mind the results of the theoretical model and experimental research, a global proposal to estimate the relation between corrosion and bond strength is presented.
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