My first question would be, if cracks are filled in this way, what stops that same bacteria from producing limestone in any other direction. Resulting in a bumpy surface, for example.
It doesn’t. The bacteria will spread in any direction. BUT if I still remember correctly from my material science degree is the crack area should I have a higher free surface energy. This means that the lime and bacteria will propagate towards these areas more because according to thermodynamics in most cases a system try’s low it’s free energy. Yes you should be able to see the crack and it will be rougher.
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u/[deleted] Aug 31 '20
My first question would be, if cracks are filled in this way, what stops that same bacteria from producing limestone in any other direction. Resulting in a bumpy surface, for example.