shower renovation

I am planning to remodel my bathroom - the bathroom currently has a 6 inch tile on the bath floor and a 3-4 inch tile on the shower floor. I am planning on removing the 6 inch floor tile and painting the concrete underneath and just leaving this as the bathroom floor.

I have two questions - 1. When I remove the smaller tile on the shower floor - what can I expect - will it be concrete or something else under there? If it is concrete, can I paint and water seal it and just leave it to use as the shower floor?

If it isn't concrete or it is not a good idea to leave concrete as the shower floor - can I just reapply ceramic tile or will I have to rebuild the entire shower floor.

I am looking for a relatively inexpensive way to update an outdated bathroom and to remove ceramic tile that has been cracked and chipped over the years - but I would like to avoid the expense of having to completely rebuild the shower.

Any help or ideas would be greatly appreciated

 

A painted concrete floor is an eternal maintenance project. Plan accordingly.