Properly built shower there are a couple of options to create a shower floor for tile using deck mud.
How to make a shower floor for tile.
Slip a flatbar into that hole and under the mortar.
Remove the drain cover and place a clean towel or rag into the drain before chiseling along the grout line of the center.
Create the concrete mixture pour concrete mix into a bucket until it s about one third full.
Mix in water and more concrete mix following the manufacturer s instructions until the result is the consistency of a milkshake.
Mix the substance in a wheelbarrow or mud pan.
Use a spade handle drill which works like a giant hand mixer.
Continue chiseling down to the waterproofing.
Add only enough water to the dry mix to make a dry pack.
Make the smooth surface of the tiles rougher to create more traction usually done by using an anti slip solution add anti slip treads or stickers cover the tile floor with non slip rugs switch to non slip floor tiles only recommended if you re planning a full renovation.
Use a 3 pound sledgehammer to hammer the tile until it s dislodged.