ᐅ Filling the Base Stone Joint – Which Material Is Recommended?

Hello everyone,

I used these paving stones as base stones (see attachments). Now I would like to ask what would be the best material to fill the joints?

Thanks for your suggestions.

Best regards,
Jörg

Dry sand, no growth. Fill the joints, lightly dampen, wait. It hardens like stone.

Hello,

I have looked at the product. However, I wonder how it is supposed to hold in the joints? The bricks are 10 cm (4 inches) high, and wouldn’t the sand fall out again before it sets?

Did I misunderstand something, or is there something else/better for this application?

Why should they crumble out? Are they supposed to stand side by side like grenadiers, without being embedded in paving?
Here it looks like this.

In some areas, paving will still be partially installed, but not immediately. In those spots, the lawn will connect directly, as it is basically intended as a single strip to seal the base of the wall.

Then fill it with screed concrete.