A laboratory investigation of cutting damage to the steel-concrete interface

Zhidong Zhang, Mahdieh Shakoorioskooie, Michele Griffa, Pietro Lura & Ueli Angst
The microstructure of the steel-concrete interface (SCI) in reinforced concrete is closely related to corrosion of reinforcing steel bars. Accordingly, characterization of the SCI is receiving increasing research attention. For microscopical observations of the SCI, a cutting process is needed to create a flat cross-section. Cutting carries the risk of damaging the SCI because of the considerable difference of hardness between concrete and steel. However, studies on characterizing the microstructure of the SCI rarely consider...
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