Journal article
The steel–concrete interface
Swiss Federal Institute of Technology Zurich1
Norwegian University of Science and Technology2
Delft University of Technology3
Institute of Construction Science Eduardo Torroja4
National Laboratory for Civil Engineering5
University of Sheffield6
University of South Florida7
Department of Civil Engineering, Technical University of Denmark8
Section for Building Design, Department of Civil Engineering, Technical University of Denmark9
Section for Structural Engineering, Department of Civil Engineering, Technical University of Denmark10
Technical University of Munich11
Imperial College London12
Oregon State University13
University of Waterloo14
Université Fédérale Toulouse Midi-Pyrénées15
...and 5 moreAlthough the steel–concrete interface (SCI) is widely recognized to influence the durability of reinforced concrete, a systematic overview and detailed documentation of the various aspects of the SCI are lacking. In this paper, we compiled a comprehensive list of possible local characteristics at the SCI and reviewed available information regarding their properties as well as their occurrence in engineering structures and in the laboratory.
Given the complexity of the SCI, we suggested a systematic approach to describe it in terms of local characteristics and their physical and chemical properties. It was found that the SCI exhibits significant spatial inhomogeneity along and around as well as perpendicular to the reinforcing steel. The SCI can differ strongly between different engineering structures and also between different members within a structure; particular differences are expected between structures built before and after the 1970/1980s.
A single SCI representing all on-site conditions does not exist. Additionally, SCIs in common laboratory-made specimens exhibit significant differences compared to engineering structures. Thus, results from laboratory studies and from practical experience should be applied to engineering structures with caution.
Finally, recommendations for further research are made.
| Language: | English |
|---|---|
| Publisher: | Springer Netherlands |
| Year: | 2017 |
| Pages: | 1-24 |
| ISSN: | 18716873 and 13595997 |
| Types: | Journal article |
| DOI: | 10.1617/s11527-017-1010-1 |
| ORCIDs: | Geiker, Mette Rica and Michel, Alexander |
