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Degradation Laws of Mechanical Properties of Corroded Steel Bar of Existing Structures on Coastal Areas

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10th International Symposium on the Conservation of Monuments in the Mediterranean Basin (MONUBASIN 2017)

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Abstract

As it is widely known, the effect of seismic actions on the existing structures, which are located on coastal areas, maintains a pending issue, given the harsh degradation of reinforced concrete, due to corrosion factor. Although corrosion phenomenon of steel reinforcement is time dependent; nevertheless, this type of issues is not mentioned in the existing technical standards. Consequently, the demanded terms and conditions to predict the remaining mechanical performance, with the use of degradation laws concerning the remaining strength and ductility of the steel rebars, are not available yet to the engineers who are responsible for the rehabilitation (before and after seismic phenomena).

For this reason, in the present study, an effort was made to document the prediction laws of the mechanical properties on strength (remaining yield strength) and ductility (the remaining strain recorded at the ultimate strength).

The prediction results of the mechanical properties (strength and ductility) of the steel reinforcement concern structures located in areas directly exposed to the sea (1000 m, XS1 exposure class according to EN 206 regulation), that are affected by marine atmosphere attack conditions (pitting corrosion).

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Author information

Authors and Affiliations

  1. Department of Mechanical Engineering & Aeronautics, University of Patras, Patras, Greece

    Charis Apostolopoulos, Argyro Drakakaki & Maria Basdeki

  2. University of Patras, Patras, Greece

    Alkiviadis Apostolopoulos

Authors
  1. Charis Apostolopoulos
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  2. Argyro Drakakaki
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  3. Maria Basdeki
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  4. Alkiviadis Apostolopoulos
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Corresponding author

Correspondence to Charis Apostolopoulos .

Editor information

Editors and Affiliations

  1. School of Chemical Engineering, National Technical University of Athens, Athens, Greece

    Maria Koui

  2. Dipartimento di Architettura Costruzione, Università Iuav di Venezia, Venezia, Italy

    Fulvio Zezza

  3. Department of Archival, Library and Information Studies, University of West Attica, Athens, Greece

    Dimitrios Kouis

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Apostolopoulos, C., Drakakaki, A., Basdeki, M., Apostolopoulos, A. (2018). Degradation Laws of Mechanical Properties of Corroded Steel Bar of Existing Structures on Coastal Areas. In: Koui, M., Zezza, F., Kouis, D. (eds) 10th International Symposium on the Conservation of Monuments in the Mediterranean Basin. MONUBASIN 2017. Springer, Cham. https://doi.org/10.1007/978-3-319-78093-1_15

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