What is this circular metal object embedded in spalled concrete?
Engineering Asked on April 3, 2021
Consider the piece of spalled concrete shown in the attached image. It has spalled due to the corrosion of the reinforcement bar. There is a small circular piece of metal embedded within the spalled concrete. What is it?
Additional image of circular objects still in-situ in reinforced concrete air tower structures:
Additional close up image of concrete plug containing metalic horseshoe like object from another part of the wall.
One Answer
It looks like a prestressed cable anchor.
Answered by Phil Sweet on April 3, 2021
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