Just like paving stones, lawn paving stones require a water-permeable layer that is also load-bearing. The entire area must be cleared before laying. After laying, the gaps are filled.
How do you fill lawn pavers correctly?
To fill lawn paving stones, mix topsoil, sand and clay granules, spread the substrate over the area, sweep it into the honeycombs, tamp down the soil and fill up to the top edge of the stone. Then water the substrate.
How to do it
If you want to plant the spaces between lawn pavers, you must fill them with a suitable substrate. A layer of clay granules or grit is placed on the gravel substructure, which takes on the function of drainage and prevents waterlogging.
Preparations
Dig the soil within an area marked off with sticks. The depth depends on the thickness of the lawn paving stones and should be approximately three times as large as the stone height.
Thinner stones are used in the garden, so that the depth is 15 to 20 centimeters. 20 to 30 centimeters are optimal for driveways and parking spaces.
The soil must be compacted so that it does not sag due to subsequent loads. Edging stones that stand on a concrete foundation serve as a border for the area.
Substructure
Fill the area with 16/32 grit gravel. After compacting, the distance between the gravel surface and the planned upper edge of the stones is around eleven centimeters. This value is a guideline for stones that are eight centimeters high. This leaves three centimeters for the leveling layer.
Bed installation
This leveling layer goes directly onto the gravel and serves as drainage. Mix one part of lava grit with one part of sand and the excavated topsoil and fill in the mixture. Compact this layer and smooth the surface. The stones are then laid at a distance of three millimeters from each other.
Fill gaps:
- Mix topsoil, sand and clay granules
- Distribute the substrate over the surface
- sweep into the honeycombs with a broom
- Tamp down the soil until each honeycomb is three quarters full
- Fill the gaps up to the top edge of the stone and water the substrate
Tip
Cut a piece of chipboard so that it fits exactly into the honeycombs. A square piece of wood that is screwed into the middle is used to guide the homemade tamper.
Follow up the area
Fix the surface by working it with a vibrating plate. In the coming weeks the substrate will settle, so the honeycombs may need to be refilled with topsoil. Some flowering plants do not thrive under constant foot traffic. Wood sorrel, stonecrop or thyme prefer a lower position. Leave some space between the surface of the soil and the top edge of the stone. If you would like to cover the grass pavers with grass, you should get special parking lot grass.
filling stones
There are special concrete blocks with which the ten by ten centimeter honeycombs can be filled precisely. This way you get a closed concrete surface that is suitable for driving on. However, the aesthetics leave something to be desired and rainwater cannot drain off well.