Blue and Gold Illustrated

Oct. 6, 2014 Issue

Blue & Gold Illustrated: America's Foremost Authority on Notre Dame Football

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Page 5 of 108

FAN FORUM THE DIRT ON 'THE DIRT' Notre Dame Stadium has a new ar- tificial playing surface yet shoe and cleat action seem to kick up dirt. How can that be? James E. Lalley Sioux City, Iowa Mr. Lalley, FieldTurf is not the same as the artificial turf or Astroturf American sports grew up with in the 1970s. Back then, it was more like a thin green carpet with a pad underneath it (although in some places players complained that it was like a carpet placed over a parking lot). FieldTurf has mainly three elements. The first is the infill, which is composed of a bottom layer of silica sand. Next is the middle layer, which is a mixture of sand and cryogenic rubber. Finally, the surface is monofilament polyethene blend fibers meant to replicate blades of grass (with the infill as the cushion). The "dirt" you see kicked up actually is the grinded up cryogenic rubber, which look like small black rubber pellets. Its purpose is to help provide better traction The "dirt" fans have seen kicked up on Notre Dame's FieldTurf actually is grinded up cryogenic rubber, which forms part of the middle layer of the new surface and looks like small black rubber pellets. PHOTO BY BILL PANZICA BE HEARD! Send your letters to: Letters Blue & Gold Illustrated P. O. Box 1007 Notre Dame, IN 46556 or e-mail to:

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