We have a steel railing on our porch and stairs in front of our townhouse. There is a small hole (1-1.5" deep) in the concrete at the base of the railing. The railing itself is solid but does have a little movement at the base.
I've been told there is a type of concrete that expands when it dries which would make it perfect to patch this area. Basically, I need to fill the hole to make sure water does not leak in and make the situation worse. Eventually, this will affect the structural integrity of the railing.
Does anyone know of such a product and it's name?
Thanks Scott