Hi, I'm finishing my basement. Floor is currently painted concrete. My intent is to install ceramic tile. I plan rent a concrete grinder to mechanicall y scrape/roughen the floor and remove the paint (which I know would act lik e a bond-breaker if I left it).
There are 2-3 cracks across the basement floor. Over the past 10years, I'v e seen a little bit of efflorescence along them, but NEVER any bulk water. They have not gotten worse. They run across the entire basement in 2 loca tions. Photos here:
What should I do at these cracks before I overlay with ceramic tile? Fill them with something? Your experience greatly appreciated. Thanks Theodore