Base plate

Hello

I have made a big hole and will pour a floor slab (450 x 500) into it. On top of that will come formwork blocks. It will be something similar to a vaulted cellar without a vault. The ground is clay, natural. I am still unsure whether to use gravel or RCL as the bottom layer. RCL was installed under my house, the road I built next to my house was also constructed with RCL. It is simply cheaper. Are there any advantages to gravel, aside from the fact that it is guaranteed to be environmentally friendly? The excavation pit is about 500 x 550 cm. That has to suffice. I wanted to fill the entire area of the pit with 15 cm of gravel or RCL and, of course, compact (either by vibrating or tamping). On top of that, a layer of [Noppenfolie] and then 20 cm of concrete (of course, formwork will be done beforehand). Two layers of reinforcement mesh should be enough. Is there anything to criticize?

Steven

What are you planning?
What is the bubble wrap for?
What do you actually want to know?

Hello I am building a basement. The dimple membrane against rising moisture. What do you think of the setup? Is RCL an equivalent alternative to gravel? Steven

The dimple membrane is definitely not a remedy against rising damp. A capillary-breaking layer, e.g. coarse gravel, or waterproof concrete helps with that.

Coarse gravel, or waterproof concrete.

Hello blockhauspower Coarse gravel is somewhat like crushed stone. That’s why I’m asking about RCL. Is that also capillary-breaking? I will ask my building material dealer about the prices. Waterproof concrete is also in my mind. It won’t be that much more expensive. And the dimpled membrane is, in my opinion, like belt and braces. Steven

In my opinion, Rcl is not capillary-breaking because the material simply has small capillaries, that is, cavities. In coarse gravel, they are too large to rise.

The studded membrane certainly doesn't hurt ;)