Influence of pre-existing cracks and concrete cover on service life of reinforced concrete and mechanical behaviour of corroded rebars
Kuleni Fekadu Yadeta,
Sudath C. Siriwardane,
Tesfaye Alemu Mohammed
et al.
Abstract:PurposeIncorporating pre-existing crack in service life prediction of reinforced concrete structures subjected to corrosion is crucial for accurate assessment, realistic modelling and effective decision-making in terms of maintenance and repair strategies.Design/methodology/approachAn accelerated corrosion test was conducted by using impressed current method on cylindrical specimens with varying cover thickness and crack width. Mechanical properties of the specimens were evaluated by tensile tests.FindingsThe … Show more
“…According to the author, the study contributes methodological innovation by refining stress-strain models specifically for partially confined concrete, addressing the limitations of existing models, where the combination of experimental and simulated assessments using DIC and FEM technologies provides robust empirical evidence, advancing the understanding and optimization of FRP-concrete structure performance. Yadeta et al (2024) suggested a simple mathematical model for evaluation of the equivalent chloride ion diffusion coefficient considering crack width, average crack spacing and crack extending lengths for cracked reinforced concrete structures, which is used to incorporate existing crack in service life prediction models. In this research work, the authors conclude that the pre-cracked samples exhibited shorter concrete cover cracking times, particularly with wider cracks when compared to the uncracked samples, as well as the loadbearing capacity of the reinforcement bars decreased owing to the pre-cracks, causing structural deflection and a shortened yield plateau.…”
Section: Second Issuementioning
confidence: 99%
“…Yadeta et al . (2024) suggested a simple mathematical model for evaluation of the equivalent chloride ion diffusion coefficient considering crack width, average crack spacing and crack extending lengths for cracked reinforced concrete structures, which is used to incorporate existing crack in service life prediction models.…”
Structural Integrity is of 5.4, which is published each year by Scopus. The IJSI journal has significantly increased its impact in the area of structural integrity and failure analysis when compared to other journals in the area. Naturally, this news is a source of joy, accomplishment and duty for Emerald's editors-in-chief, editorial board members and staff.IJSI journal aims to bring together academic and industrial research in the area of damage tolerance design, structural integrity and failure analysis.
“…According to the author, the study contributes methodological innovation by refining stress-strain models specifically for partially confined concrete, addressing the limitations of existing models, where the combination of experimental and simulated assessments using DIC and FEM technologies provides robust empirical evidence, advancing the understanding and optimization of FRP-concrete structure performance. Yadeta et al (2024) suggested a simple mathematical model for evaluation of the equivalent chloride ion diffusion coefficient considering crack width, average crack spacing and crack extending lengths for cracked reinforced concrete structures, which is used to incorporate existing crack in service life prediction models. In this research work, the authors conclude that the pre-cracked samples exhibited shorter concrete cover cracking times, particularly with wider cracks when compared to the uncracked samples, as well as the loadbearing capacity of the reinforcement bars decreased owing to the pre-cracks, causing structural deflection and a shortened yield plateau.…”
Section: Second Issuementioning
confidence: 99%
“…Yadeta et al . (2024) suggested a simple mathematical model for evaluation of the equivalent chloride ion diffusion coefficient considering crack width, average crack spacing and crack extending lengths for cracked reinforced concrete structures, which is used to incorporate existing crack in service life prediction models.…”
Structural Integrity is of 5.4, which is published each year by Scopus. The IJSI journal has significantly increased its impact in the area of structural integrity and failure analysis when compared to other journals in the area. Naturally, this news is a source of joy, accomplishment and duty for Emerald's editors-in-chief, editorial board members and staff.IJSI journal aims to bring together academic and industrial research in the area of damage tolerance design, structural integrity and failure analysis.
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