Special Issue "Structural Assessment of Reinforced Concrete Elements Damaged by Corrosion: Experimental, Numerical and Analytical Studies"

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Construction and Building Materials".

Deadline for manuscript submissions: 31 December 2021.

Special Issue Editors

Prof. Dr. Mahdi Kioumarsi
E-Mail Website1 Website2
Guest Editor
Department of Civil Engineering and Energy Technology, Oslo Metropolitan University, Oslo, Norway
Interests: sustainable concrete; durability; corrosion; concrete technology; reinforced concrete structures; remaining service life of concrete structures; structural engineering; finite element analysis
Special Issues and Collections in MDPI journals
Prof. Dr. Enrique Hernández Montes
E-Mail Website
Guest Editor
Department of Mecánica de Estructuras, Universidad de Granada, Granada, Spain
Interests: reinforced concrete structures; earthquake engineering; structural engineering; finite element analysis; structural stability
Prof. Dr. Stefania Imperatore
E-Mail Website
Guest Editor
Department of Civil Engineering, Niccolò Cusano University, Rome, Italy
Interests: corrosion; durability; existing structures; reinforced concrete; structural assessment; materials mechanical properties

Special Issue Information

Dear Colleagues,

Reinforced concrete (RC) structures/infrastructures are often exposed to different types of damages and deterioration due to exposure conditions during their service life. Assessment of such structural damages plays a key role in public safety with regards to both long-term damage accumulation and post extreme-event scenarios. Several collapses have occurred due to degradation and the poor durability of RC structures. Practical cases of premature deterioration in RC structures highlight that corrosion is one of the dominant degradation mechanisms in 70% of the evaluated cases. Corrosion also negatively affects society due to the huge amounts of money being spent for the repair and rehabilitation of existing reinforced concrete structures, to ensure their safety and quality. The high societal costs of corrosion directly reflect the severe lack of the fundamental understanding of corrosion-related degradation mechanisms, their rate of evolution depending on the environmental aggressiveness and their structural consequences in terms of load-bearing capacity, remaining ductility, as well as deformability under service conditions. The principal effects of corrosion, such as cracking and spalling of the concrete cover, are associated with reductions of the reinforcement cross-section. The latter, accompanied by a mechanical properties decay, is still investigated in terms of the hysteretic energy degradation during cyclic or fatigue loading as well as buckling behavior. Consequently, steel reinforcement corrosion plays a key role on the entire structural performance of reinforced concrete structures.

It is our pleasure to invite you to submit a manuscript for this Special Issue, gathering original research contributions and critical reviews that go beyond the current knowledge in the structural assessment of corroded reinforced concrete members by means of experimental, numerical, and analytical investigations. Areas of interest include, but are not limited to:

  • advanced modelling and simulation of corroded RC elements
  • monitoring and measurement of corrosion level
  • bond-slip relationship of corroded elements
  • experimental investigation of corroded ordinary and prestressed RC structures
  • seismic performance of corroded RC structures
  • robustness and resilience of corroded ordinary and prestressed RC structures
  • implementation of the corrosion effects in analytical and numerical models
  • predictive estimation of the residual service life of corroded RC structures
  • case study of existing structures and infrastructures damaged by corrosion

Prof. Dr. Mahdi Kioumarsi
Prof. Dr. Enrique Hernández Montes
Prof. Dr. Stefania Imperatore
Guest Editors

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 papers will be 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. Materials is an international peer-reviewed open access semimonthly 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 2000 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
  • reinforcement
  • corroded RC structures
  • finite element simulation
  • service life modelling
  • structural assessment
  • residual capacity of corroded RC structures

Published Papers (1 paper)

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Research

Article
Time-Dependent Reliability Analysis of Reinforced Concrete Beams Subjected to Uniform and Pitting Corrosion and Brittle Fracture
Materials 2021, 14(8), 1820; https://doi.org/10.3390/ma14081820 - 07 Apr 2021
Viewed by 342
Abstract
Reinforced concrete (RC) beams are basic elements used in the construction of various structures and infrastructural systems. When exposed to harsh environmental conditions, the integrity of RC beams could be compromised as a result of various deterioration mechanisms. One of the most common [...] Read more.
Reinforced concrete (RC) beams are basic elements used in the construction of various structures and infrastructural systems. When exposed to harsh environmental conditions, the integrity of RC beams could be compromised as a result of various deterioration mechanisms. One of the most common deterioration mechanisms is the formation of different types of corrosion in the steel reinforcements of the beams, which could impact the overall reliability of the beam. Existing classical reliability analysis methods have shown unstable results when used for the assessment of highly nonlinear problems, such as corroded RC beams. To that end, the main purpose of this paper is to explore the use of a structural reliability method for the multi-state assessment of corroded RC beams. To do so, an improved reliability method, namely the three-term conjugate map (TCM) based on the first order reliability method (FORM), is used. The application of the TCM method to identify the multi-state failure of RC beams is validated against various well-known structural reliability-based FORM formulations. The limit state function (LSF) for corroded RC beams is formulated in accordance with two corrosion types, namely uniform and pitting corrosion, and with consideration of brittle fracture due to the pit-to-crack transition probability. The time-dependent reliability analyses conducted in this study are also used to assess the influence of various parameters on the resulting failure probability of the corroded beams. The results show that the nominal bar diameter, corrosion initiation rate, and the external loads have an important influence on the safety of these structures. In addition, the proposed method is shown to outperform other reliability-based FORM formulations in predicting the level of reliability in RC beams. Full article
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