Рет қаралды 31,128
Sand loosens the soil. Sand ensures good water permeability of the soil. Sand keeps the top layer of the lawn dry. Sand drives away moss. Sand evens out soil irregularities. Sand provides microorganisms with optimal conditions for the microbial decomposition of the lawn felt layer.
I cannot recommend play sand for lawns! Children want to shape things with the sand. To do this, the sand has to bake/stick. This is not good for lawns, as it compacts the soil and makes it less permeable to water. We want to achieve exactly the opposite and increase water permeability with sand.
Top dressing sand for lawns should be washed and have a grain size distribution between 0.2 mm and 0.8 to 1 mm. Sanding can be done very often with a quantity of about 0.5 to 2 litres per square metre.
Quality criteria for sands:
- Weathering and wear-resistant sands
- Quartz sands or low-lime sands with less than 5% CaCO3
- As far as possible, free of particles smaller than 0.06 mm that can be washed off.