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Metals
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Assessment of Corrosion Resistance and Mechanical Properties of Reinforced Concrete
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Assessment of Corrosion Resistance and Mechanical Properties of Reinforced Concrete

A special issue of Metals (ISSN 2075-4701). This special issue belongs to the section "Corrosion and Protection".

Deadline for manuscript submissions: closed (31 May 2022) | Viewed by 5307

Special Issue Editor

Prof. Dr. Charis Apostolopoulos

E-Mail Website
Guest Editor
Laboratory of Technology and Strength of Materials, Department of Mechanical Engineering and Aeronautics, University of Patras, Patras, Greece
Interests: mechanical behavior of materials; steel corrosion; failure analysis; corrosion protection; fatigue and fracture mechanics of metals
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Corrosion phenomenon consists a major degradation problem of reinforced concrete (RC) structures, affecting both concrete and steel, which are expected to deteriorate over time due to the aggressive environmental factors. Recently, the influence of corrosion on durability of RC structures has attracted the attention of several research projects. Some examples are the knowledge about corrosion mechanisms and the protection methods which are highly complex due to numerous affecting factors. Hence, it becomes crucial to correlate the mechanical behavior of structures and the mechanical performance of evolving materials with their corrosion damage, in order to assess the service lifetime of structures. The corrosion effect on structural integrity of RC structures, as well as its huge financial costs for rehabilitation and repair of aged structures raise the need to enhance the existing design codes involving the corrosive factor. Therefore, besides the current regulations, a parallel regulatory framework needs to be developed with appropriate adjustments for the assessment and redesign of existing aged structures, following the example of Greece with Intervention Regulation (KAN.EPE.).

In this scenario, the Special Issue embraces interdisciplinary work expanding on basic corrosion knowledge and access additional resources on corrosion prevention and mitigation methods.

Topics related to the wide spectrum of corrosion and inhibition are invited as contributions to this Special Issue :

  • Design of new materials and manufacturing methods
  • Correlation between chemical composition, processing parameters, metallurgical aspects and surface characteristics with corrosion resistance
  • Protective coatings so as to prolong the service life of existing and new structures
  • Assessment of corroded RC structures
  • Modelling the corrosive factor in RC elements

Prof. Dr. Charis Apostolopoulos
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Metals is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • corrosion mechanism
  • uniform/pitting corrosion
  • mechanical behavior
  • structural assessment
  • fatigue and corrosion
  • seismic performance
  • bond mechanism
  • corrosion protection methods
  • corrosion monitoring

Published Papers (2 papers)

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Research

16 pages, 4804 KiB  
Article
The Effect of the Shot Blasting Process on the Dynamic Response of Steel Reinforcement
by Maria Basdeki and Charis Apostolopoulos
Metals 2022, 12(6), 1048; https://0-doi-org.brum.beds.ac.uk/10.3390/met12061048 - 19 Jun 2022
Viewed by 1530
Abstract
As it is widely known, corrosion poses a real threat for reinforced concrete structures, especially when they are located in coastal areas. This phenomenon, in conjunction with repeated loads, such as intense seismic events, adversely affect their useful service life. Several experimental studies [...] Read more.
As it is widely known, corrosion poses a real threat for reinforced concrete structures, especially when they are located in coastal areas. This phenomenon, in conjunction with repeated loads, such as intense seismic events, adversely affect their useful service life. Several experimental studies have presented the magnitude of degradation of steel reinforcement due to corrosion in the presence of fatigue, which affects either the serviceability or durability of steel reinforcement. As a result, the current experimental study presents the results of the shot blasting process of steel reinforcement at various times of exposure to a corrosive environment and the influence on their dynamic response after the execution of low cycle fatigue tests at different constant strain amplitudes. The findings show the beneficial effect of the shot blasting process in terms of percentage mass loss and the improvement of mechanical performance of steel bars in terms of service life and energy dissipation capacity. Moreover, the assessment performed with a quality material index demonstrates the improved mechanical performance of shot blasted specimens vs. bare specimens, in the long term for medium range-imposed deformation. Full article
(This article belongs to the Special Issue Assessment of Corrosion Resistance and Mechanical Properties of Reinforced Concrete)
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16 pages, 4547 KiB  
Article
The Effect of Shot Blasting Process on Mechanical Properties and Anti-Corrosive Behavior of Steel Reinforcement
by Maria Basdeki and Charis Apostolopoulos
Metals 2022, 12(2), 275; https://0-doi-org.brum.beds.ac.uk/10.3390/met12020275 - 02 Feb 2022
Cited by 5 | Viewed by 3304
Abstract
The need to confront the problem of corrosion resistance of steel reinforcement is an issue of major importance and a perpetual challenge to the structural integrity and reliability in reinforced concrete (RC) structures. The current experimental study presents the results of the combined [...] Read more.
The need to confront the problem of corrosion resistance of steel reinforcement is an issue of major importance and a perpetual challenge to the structural integrity and reliability in reinforced concrete (RC) structures. The current experimental study presents the results of the combined effect of shot blasting and coating on steel reinforcing bars in respect to their anticorrosive resistance and their mechanical behavior, at various times of exposure to corrosive environment. In the present manuscript, a comparison of different abrasive materials was primarily conducted, via electrochemical measurements (Tafel tests), to estimate the corrosion current (icorr) for each abrasive material. After the indication that corrosion resistance can be modified by shot blasting with corundum, the method of Zn85Al15 coating was chosen to further investigate the combined effect of shot blasting with coating, in terms of percentage mass loss and mechanical behavior of steel reinforcement. The results demonstrated that, upon the completion of the surface treatment process with corundum, the mechanical performance of steel bars was improved in terms of ductility. Moreover, the Zn85Al15 coating provided a satisfactory anticorrosive protection to steel bars in the entire exposure period of accelerated corrosion. The combined contribution of shot blasting and coating processes was deemed to be very encouraging and may trigger further investigation and research, for the production of a better corrosion resistance of B500c steel. Full article
(This article belongs to the Special Issue Assessment of Corrosion Resistance and Mechanical Properties of Reinforced Concrete)
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