The influence of defects at the steel/concrete interface for chloride-induced pitting corrosion of naturally-deteriorated 20-years-old specimens studied through X-ray Computed tomography
| Autor: | Oğuzhan Çopuroğlu, Emanuele Rossi, Timo G. Nijland, Branko Šavija, Rob B. Polder |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Materials science
0211 other engineering and technologies 020101 civil engineering 02 engineering and technology Chloride 0201 civil engineering Corrosion Reinforcement corrosion X ray computed 021105 building & construction medicine Pitting corrosion General Materials Science Composite material Reinforcement Materials Civil and Structural Engineering X-ray computed tomography Buildings and Infrastructures Building and Construction Reinforced-concrete Architecture and Building 2015 Urbanisation Steel-concrete interface Air voids Tomography medicine.drug |
| Zdroj: | Construction and Building Materials, 235, 1-11 Construction and Building Materials, 235 |
| ISSN: | 0950-0618 |
| Popis: | Although reinforcement corrosion is a well-known issue, which are the locations of the steel/concrete interface most sensitive to pitting corrosion is still an unclear issue. In this study, X-ray computed tomography is used to characterize eight 20-years-old reinforced concrete cores naturally deteriorated due to chloride-induced corrosion. The deepest and most frequent corrosion pits were observed at the portion of the reinforcement oriented to the outdoor environment and in proximity to interfacial air voids. Therefore, the presence of interfacial air voids should be considered as a relevant factor when assessing the risk of corrosion of reinforced concrete structures. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect