A support layer for supporting an artificial turf assembly. The support layer being formed of a polymeric foam, preferably having a density of between 20 and 70 grams per liter, such as a polyolefin foam; and having an upper side and a lower side, wherein in use the support layer has been placed with the lower side thereof on a base surface and supports, on the upper side thereof, the artificial turf assembly, the support layer including a plurality of through drainage holes extending from the upper side to the lower side for allowing liquid such as rain water to flow via the plurality of drainage holes from the upper side to the lower side, and also including a plurality of channels at the lower side for allowing liquid such as rain water to flow through the channels along the lower side, wherein each of said plurality of drainage holes debouches into one of the plurality of channels. The support layer is further included in an artificial turf system, that includes an artificial turf assembly with the support layer supported on a base surface such as a layer of sand, wherein the support layer forms, at the upper sides thereof, a closed support surface supporting the artificial turf assembly.

A modular planting material for natural turf in sports field and its manufacturing process, the material is consist of a far-infrared mineral substrate, a multi-biochar, and a polysaccharide polymer; wherein the far-infrared mineral substrate is composed of SiO2, ZnO, CaO, Al2O3, Fe2O3, K2O, MgO, TiO2, CeO2, La2O3, pulverized fuel ash 1, and raw carbon powder; the multi-biochar is composed of rice husk, oil millet husk, and oil millet stalk; the polysaccharide polymer is composed of polyuronic acid, sodium salt, and cellulose; The present invention let 75˜85% far-infrared mineral substrate, 10-20% multi-biochar, and 2˜5% polysaccharide polymer be mixed, stirred, dried, heated and pressed into shape, high temperature sterilized and molded, and cooled and pressed, then cut to form a natural turf modular planting material. Since the modular planting material has many pores, it has the feature of water retention, air permeability and promoting the growth of the beneficial bacteria and the plants.

A support layer for supporting an artificial turf assembly. The support layer being formed of a polymeric foam, preferably having a density of between 20 and 70 grams per liter, such as a polyolefin foam; and having an upper side and a lower side, wherein in use the support layer has been placed with the lower side thereof on a base surface and supports, on the upper side thereof, the artificial turf assembly, the support layer including a plurality of through drainage holes extending from the upper side to the lower side for allowing liquid such as rain water to flow via the plurality of drainage holes from the upper side to the lower side, and also including a plurality of channels at the lower side for allowing liquid such as rain water to flow through the channels along the lower side, wherein each of said plurality of drainage holes debouches into one of the plurality of channels. The support layer is further included in an artificial turf system, that includes an artificial turf assembly with the support layer supported on a base surface such as a layer of sand, wherein the support layer forms, at the upper sides thereof, a closed support surface supporting the artificial turf assembly.

Compositions and methods in which aragonite, and especially oolitic aragonite particles are used as infill material in an artificial turf structure or as sub-growth substrate for natural grass. Advantageously, oolitic aragonite particles provide a superior microporous surface for effective water saturation to impart thermal control and environmental compatibility, ammonia neutralization of urine by reducing urea hydrolysis with the free calcium presented in the aragonite particles, aragonite particle uniformity allowing for reduced compaction and desirable water draining, and the microporous oolitic aragonite particles have an evaporative cooling surface.

Presented is an apparatus and system for an artificial turf system. The artificial turf system includes a backing layer having a plurality of fibers extending therefrom. The artificial turf system further includes a plurality of impact sensors located at least partially on, in, and/or beneath the backing layer, wherein the plurality of impact sensors are operable to detect a force or pressure applied to the backing layer.

An underlayment layer is configured to support an artificial turf assembly. The underlayment layer comprises plurality of panels, each panel comprising a core with a top side and a bottom side. The top side has a plurality of top projections. The top projections form top side water drainage channels. The panels have edges, with the edges of one panel abutting the edges of adjacent panels, thereby forming a drainage path between adjacent panels. The panel edges have vertical support extensions that extend into the drainage paths between adjacent panels. The vertical support extensions have an upper surface for supporting an artificial turf assembly overlying the turf underlayment layer, and the panel edges having one or more complementary indentations corresponding to vertical support extensions of adjacent panels. When the panels move toward each other, thereby closing drainage paths between adjacent panels, the vertical support extensions are received in the corresponding indentations.

Compositions and methods are presented in which aragonite, and especially oolitic aragonite particles are used as infill material in an artificial turf structure or as sub-growth substrate for natural grass. Advantageously, oolitic aragonite particles provide: a superior microporous surface for effective water saturation to impart thermal control and environmental compatibility; ammonia neutralization of urine by reducing urea hydrolysis with the free calcium presented in the aragonite particles; and aragonite particle uniformity allowing for reduced compaction and desirable water draining.

Playing surface, in particular a sports floor or playing field. The playing surface comprises a substrate layer lying on top of a base layer and one or more additional layers lying on top of the substrate layer. The substrate layer is a leveled, compacted mixture of elastic granules and stones. At least one of the additional layers is an elastic layer. The substrate layer and the one or more additional layers form the playing surface.

Compositions and methods in which aragonite, and especially oolitic aragonite particles are used as infill material in an artificial turf structure or as sub-growth substrate for natural grass. Advantageously, oolitic aragonite particles provide: a superior microporous surface for effective water saturation to impart thermal control and environmental compatibility; ammonia neutralization of urine by reducing urea hydrolysis with the free calcium presented in the aragonite particles; and aragonite particle uniformity allowing for reduced compaction and desirable water draining.

The disclosures made herein are directed to artificial turf systems and installation techniques that are adapted for providing a target maximum shock rating (i.e., “Gmax” rating) without the use of compliant infill materials such as, for example, crumbled rubber. More specifically, such disclosures are directed to artificial turf systems and installation techniques that achieve such target maximum shock rating without the use of compliant infill materials even in applications where the artificial turf system is installed over a substantially non-displacing support surface such as asphalt or crushed stone. Furthermore, such artificial turf systems and installation techniques can be specifically configured for use on a support surface that is substantially impermeable to liquid that might drain off of or through the artificial turf.