[Cob] Tile layed over earthen floor

[Alessandra Caprara]

Good morning!
I’ve made a search using “cob tile” words in my email and I was reading all
messages about it because I am looking for recipes to glue the tiles over
my tapped earthen floor. I want to do that in my tiny bathroom (1x3m to
cover - in the shower area we have a bath instaled) and in part of my
kitchen arround the sink and the wood burning stove. Not only because I am
concerned about the wet but also with the cleaning issues.
Well, I’ve found a 1:3 clay sand and lots of linseed oil. Here we have a
clay with lots of coarse sand and it gave me lots of questions: does have
the clay here sand enough? Being the sand a coarse and squared shape do I
have to screen it and mix another tipe of rounded and finer sand? How much
oil do I need to mix?
Another question I have is about the mix to fix the tile and to grout the
tile. I think this question is more about my problems with english
language. To fix the tile I don’t need to add oil and I must to do it in
the mix I will use to fill the gaps between the tiles. Is that right?
Do I need to use a really thin layer to fix the tile? And do I must to wait
it to dry completely? How do I know it is dry?
The tapped base floor is dry right now, but we are in the wet season what
means it’s raining almost every day.
I’m sorry so many questions. It is my first house I’m doing myself and I am
only a veterinarian.

Thank you,
-- 
Alessandra Caprara