Leca loose fill in flooring
General concept of this method is in 6 steps.
1- Pre-wetting Leca aggregate before use.
2- Defining final elevation of flooring using leveling instrument
3- If you have slopes in the drawings you will need to make some square cells using some guide ruler (made using some 4×8 lumber or using some bricks and mortar)
4- Filling in the cells by loose Leca.
5- As an option you can use some Geo-textiles or nylon sheets just to keep the Leca aggregate in place. (Optional based on engineering judgment)
6- Spraying Mortar on top (Optional based on engineering judgment)