This video shows you how to make thin repairs to or patch damaged concrete, using QUIKRETE® Concrete Patching Compound.
With proper attention to surface preparation and material selection, durable repairs can be made to worn, scaling or cracked surfaces, extending the life of the concrete.
I don’t need it but for those who need it.
That easy!!
https://plevit1.blogspot.kr/2014/07/parametric-anchor-bolt-head.html
Enjoy