Abstract

A system for controlling a moisture content below a surface area, where the system is installable in a recess above which the surface area will be located. The system comprises a substantially water impermeable first layer, a porous second layer and a water control basin which comprises means for controlling a moisture level of the porous second layer. The system enables liquid from the water control basin to be transported through the second layer by utilization of capillary forces, providing for an efficient sub-surface irrigation system which is easy to maintain. A method for providing such an irrigation system is also disclosed.

IPC Classes  ?

• A01G 25/06 - Watering arrangements making use of perforated pipe-lines located in the soil
• A01G 25/00 - Watering gardens, fields, sports grounds or the like

Abstract

The invention relates to a method for foundation of a sports area, the method comprising the steps of: providing a first mixture of cement and particulate stone material; mixing said first mixture with a predetermined amount of water for forming a second mixture; applying a layer of said second mixture to a surface located at the place where the sports area is intended to be situated; curing/setting said layer of said second mixture applied to the surface, wherein the cured layer is porous and allows water to flow through said cured layer; and applying a layer of a particle size fraction onto said cured layer after the step of curing. The invention relates also to a mixture for foundation of a sports area, the mixture comprising cement and particulate stone material, wherein said mixture comprises ca.15-40% by dry weight cement and 60-85% by dry weight particulate stone material, suitably 20-35% by dry weight cement and 65-80% by dry weight particulate stone material, and more suitably 30% by dry weight cement and 70% by dry weight particulate stone material, and wherein at least 75% of said particles of said particulate stone material are of sizes within the range 0.1-10mm.

IPC Classes  ?

• A63C 19/00 - Design or layout of playing courts, rinks, bowling greens or areas for water-skiingCovers therefor
• E01C 13/00 - Pavings or foundations specially adapted for playgrounds or sports grounds