Substrate arrangement for e.g. planting lawn in football field, has substrate layer for supporting plants, and water storing board connected with drainage layer and water barrier layer using composite material section

摘要

The arrangement has a substrate layer for supporting plants. A water storing board combines granular material e.g. sand, gravel and/or granules of an organic or inorganic substance, with a polyurethene binding material. The water storing board is connected with a drainage layer and a water barrier layer using a composite material section that is formed with 8-15 cm thickness, 100 cm length and 50 cm breadth. The polyurethene binding material is formed from an isocyanate/polyol resin with polyol, polyisocyanate and catalyst components. An independent claim is also included for a method for producing a substrate arrangement.