Concrete keels - any facts?
Granted concrete is not the material I would use for ballast if I had the choice, but looking at old boats I see a Rawson 30 that would otherwise seem to fit my purposes (seaworthiness, cruising, liveaboard), taste and budget.
So what problems might one expect out of a concrete ballast keel that is 40 years old?
Things I've heard...
They cause corrosion
They soak up water
Are these real problems or myths?
Also, are there fixes if problems come up, and if so how hard are the fixe$?
I am imagining if something goes wrong with a concrete keel it is harder to remedy than an external lead keel...
Thanks in advance for setting me on course!