Abstract: A natural binder-based infill for artificial turf, comprising biodegradable granules, wherein the granules comprise a natural binder that has been physically but not chemically modified by the addition of a quantity of filler material, wherein the granules have a mean size of between 0.2 and 5 mm.

Abstract: A natural rubber based infill for artificial turf, comprising biodegradable granules, wherein the granules comprise natural rubber that has been physically but not chemically modified by the addition of a quantity of filler material, wherein the granules have a mean size of between 0.2 and 5 mm.

Abstract: A modular structure for installing an artificial playing field comprising: a stabilizing layer forming a plurality of compartments for receiving a granular infill; a separation layer for location over the stabilizing layer to retain the infill; a water distributing layer; and an artificial turf layer. The claimed construction allows a stable base layer to be formed using virtually any locally available granular material such as earth, gravel, lava, rock and the like. The compartments ensure that the granular material is held in place and cannot be displaced due to loading or washed away due to rain or flooding.

Abstract: A modular structure for installing an artificial playing field comprising: a stabilising layer forming a plurality of compartments for receiving a granular infill; a separation layer for location over the stabilising layer to retain the infill; a water distributing layer; and an artificial turf layer. The claimed construction allows a stable base layer to be formed using virtually any locally available granular material such as earth, gravel, lava, rock and the like. The compartments ensure that the granular material is held in place and cannot be displaced due to loading or washed away due to rain or flooding.