So, I invented a way to use concrete with some addittive, some various polymers. The system is untested, has notseen it anywhere else, now it is running the first test in my home, with three children, dog and wife, in this small bathroom. So, the load of water is pretty heavy.
I decided to keep the sealing membrane and build with concrete over it.Concrete that of all recommended NOT to use naked above a membrane. But I think I know what I'm doing. My concrete is not normal, because I mix up different polymers in it.
(clic the pictures to enlarge)
Design: Anders Widén