Durability of cracked SFRC exposed to wet-dry cycles of chlorides and carbon dioxide – Multiscale deterioration phenomena

Marcos-Meson, Victor; Fischer, Gregor; Solgaard, Anders Ole Stubbe; Jakobsen, Ulla; Danner, Tobias; Edvardsen, Carola; Skovhus, Torben Lund; Michel, Alexander

doi:10.1016/j.cemconres.2020.106120

Cited by 32 publications

(16 citation statements)

References 43 publications

(84 reference statements)

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“…The results shown below are based on the analysis of the processed experimental data presented in: Appendix A for the mechanical results, and Appendix B for the fibre count results. Furthermore, the experimental data is published in a tabulated format in [ 35 ].…”

Section: Resultsmentioning

confidence: 99%

“…These tests were used to confirm whether there was ingress of chlorides and carbonation damage inside the crack but were not intended to quantify the chloride concentration or pH inside the crack. An assessment of these results was published in [ 28 ].…”

Section: Methodsmentioning

confidence: 99%

“… Fibre classification categories depending on fibre corrosion damage: ( a ) no corrosion (and fibre rupture), ( b ) minor corrosion, ( c ) moderate corrosion, ( d ) major corrosion (always fibre rupture). After [ 28 ]. …”

Section: Figurementioning

confidence: 99%

“… Visual inspection on the two faces of the crack of a bending specimen, fibre counting: ( a ) original cracked specimen with marked fibres and main features of the crack, ( b ) processed data on the two sides of the crack showing symmetry axes and final calculated area (highlighted in red). After [ 28 ]. …”

Section: Figurementioning

confidence: 99%

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Mechanical Performance of Steel Fibre Reinforced Concrete Exposed to Wet–Dry Cycles of Chlorides and Carbon Dioxide

et al. 2021

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This paper presents an experimental study investigating the corrosion damage of carbon-steel fibre reinforced concrete (SFRC) exposed to wet–dry cycles of chlorides and carbon dioxide for two years, and its effects on the mechanical performance of the composite over time. The results presented showed a moderate corrosion damage at fibres crossing cracks, within an approximate depth of up to 40 mm inside the crack after two-years of exposure, for the most aggressive exposure conditions investigated. Corrosion damage did not entail a significant detriment to the mechanical performance of the cracked SFRC over the time-scales investigated. Corrosion damage to steel fibres embedded in uncracked concrete was negligible, and only caused formation of rust marks at the concrete surface. Overall, the impact of fibre damage to the toughness variation of the cracked composite over the time-scale investigated was secondary compared to the toughness variation due to the fibre distribution. The impact of fibre corrosion to the performance of the cracked composite was subject to a size-effect and may only be significant for small cross-sections.

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Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Figurementioning

confidence: 99%

Section: Figurementioning

confidence: 99%

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Mechanical Performance of Steel Fibre Reinforced Concrete Exposed to Wet–Dry Cycles of Chlorides and Carbon Dioxide

et al. 2021

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“…Granju and Balouch [ 14 ] studied the corrosion of steel fiber in a cracked section of SFRC and surprisingly found that the static flexural strength of cracked SFRC samples exposed for 1 year to marine saline fog was increased, which is consistent with other researchers’ findings [ 15 ]. Marcos-Meson et al [ 16 ] studied the deterioration phenomena of cracked SFRC exposed to wet–dry cycles of chlorides, and a conceptual deterioration model was developed, describing the deterioration and recovery mechanisms that alter the long-term mechanical performance of the cracked composite under wetting–drying conditions.…”

Section: Introductionmentioning

confidence: 99%

Dynamic Compressive Strength Tests of Corroded SFRC Exposed to Drying–Wetting Cycles with a 37 mm Diameter SHPB

Chen

Zhou

et al. 2021

Materials

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This study focuses on the dynamic compression performance of corroded steel fiber-reinforced concrete (SFRC) exposed to drying–wetting chloride cycles by a 37 mm diameter split Hopkinson pressure bar (SHPB) system. Three steel fiber contents (0.5%, 1.0%, 2.0%, by volume) were incorporated into concrete, and samples were subjected to drying–wetting cycles for different corrosion durations (30 days, 60 days, 90 days) after 28 days age. The sample damage mode, stress–strain curve and the dynamic compression performance of corroded SFRC were compared with plain concrete. Through the experimental data, strain-rate effect, fiber reinforcement effect and the corrosion duration influence on the impact compression property of SFRC were identified. The dynamic increase factor results of these samples were compared with the existing models in previous published literature. An empirical dynamic increase factor profile characterization model considering fiber content, corrosion duration and strain-rate is proposed.

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Combined effect of sustained/cyclic load and environmental conditions on the durability performances of FRP composites

Zhu,

Tang,

Feng

2024

Aging and Durability of FRP Composites and Nanocomposites

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Durability of cracked SFRC exposed to wet-dry cycles of chlorides and carbon dioxide – Multiscale deterioration phenomena

Cited by 32 publications

References 43 publications

Mechanical Performance of Steel Fibre Reinforced Concrete Exposed to Wet–Dry Cycles of Chlorides and Carbon Dioxide

Mechanical Performance of Steel Fibre Reinforced Concrete Exposed to Wet–Dry Cycles of Chlorides and Carbon Dioxide

Dynamic Compressive Strength Tests of Corroded SFRC Exposed to Drying–Wetting Cycles with a 37 mm Diameter SHPB

Combined effect of sustained/cyclic load and environmental conditions on the durability performances of FRP composites

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