Hi everyone! I am in the process of redoing the master bathroom: converting from a tub to a curbless, walk-in shower. Since I would like to have a curbless shower, I am doing a mud shower pan with the 2 layers on concrete with the waterproof membrane in between. Instead of tiling the shower floor, I am going to use quikrete liquid concrete color. My question is, what type of concrete should I use for the top layer. I plan on making it 1-1/4" thick as this is what I have been reading. Also, if I make it any thicker, I have to cut furthur into the floor joists, which I don't want to do. Should I use quikrete's crack resistant concrete mix, the 4:1 mix of sand to portland cement, or something else? Thanks for the help!
I really cant answer your question, but, did you cut into the floor joists ???. Are you sure the remaining partial joist will support the weight of the concrete as well as the weight of the person using the shower ????