Production of "permeable lean concrete"

Hello,

we are currently setting curbstones for the edging of paths and driveways. The paving is done with "Öko-Pflaster," meaning "it is water-permeable." The paving is laid on a layer of grit. Below that, it is frost-free founded but not insurable. The paving is installed with a slope. The question I am now asking myself: How can I channel the infiltrated water beneath the paving? We have set the curbstones in lean concrete and with back support. Does the water pass through there? I also want to set block steps on lean concrete (including mortar strips / adhesive mortar). Here, I would also need to know if the water can migrate through there?

Lean concrete is mixed with 0-16 gravel.

How can I drain the infiltrated water beneath the paving? We have set the curbstones in lean concrete and with back support. Does water pass through there?

Lean concrete is more water-permeable due to its mixture - compared to normal concrete. But it is also weather-sensitive and not very pressure-stable. However, water does not simply run through... Water-permeable concrete is drain concrete.

Where do you want to direct the water? Under the pavement to a drainage point? As long as you don't have too much slope under the pavement, it should simply seep into the ground.

Where do you want to direct the water? Under the pavement to a drainage point? As long as you don’t have too much slope under the pavement, it should simply infiltrate into the soil.

we have a crushed stone base layer made of 0-x. Compacted. It may be that the water seeps through there – albeit slowly. I’m only concerned about standing water that “collects” beneath the pavement and can’t seep anywhere. We currently do not specifically drain it or plan to. My helpers just say that the water runs off because there is a slope. Unfortunately, they can’t or won’t deal with the issue of “water beneath the pavement.” Maybe I’m worrying too much?! Drainage concrete is already on my radar. Possibly I’ll do this beneath the block steps. Or can they also be set in lean concrete?

Actually, one should take something without zero portions in order to achieve the infiltration performance of the paving including the substructure. It will infiltrate anyway. What matters is the overall construction, that is, the substructure and subsoil. It is pointless if the substructure collects much more water than the subsoil can infiltrate and then it freezes.