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FieldTurf
FieldTurf is a brand of artificial turf playing surface. It is manufactured and installed by FieldTurf Tarkett, a division of French company Tarkett Inc., headquartered in Calhoun, Georgia, United States.〔(PTC getting HQ of sports turf company )〕 In the late 1990s, the artificial surface changed the industry〔(This grass is greener )〕 with a design intended to replicate real grass.〔(Magic carpet )〕 The new system quickly began taking market share from AstroTurf, and is now the leader in the industry and currently holds an 85% market share.〔http://www.inc.com/magazine/20080901/jon-pritchetts-dream-of-reviving.html〕
==Product details==
The surface is composed of monofilament polyethylene blend fibers tufted into a polypropylene backing. The infill is composed of a bottom layer of silica sand, a middle layer which is a mixture of sand and cryogenic rubber, and a top layer of only rubber. The fibers are meant to replicate blades of grass, while the infill acts as a cushion. This cushioned intended to improve safety when compared to earlier artificial surfaces and allows players to plant and pivot as if they were playing on a grass field.
Each square foot of turf contains approximately seven pounds of sand and three pounds of cryogenic rubber. FieldTurf does not use shock absorbency pads below its infill. The backing of the turf is a combination of woven and non-woven polypropylene. These materials are permeable and allow water to drain through the backing itself.〔(【引用サイトリンク】title=Design and Construction )〕
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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