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MATERIAL SPECIFICATION <br />AM ~N SC250 <br />GREEN' <br />• <br />The composite turf reinforcement mat (C-TRM) shall be amachine-produced mat of 70% straw/30% coconut fiber matrix <br />incorporated into a permanent three-dimensional turf reinforcement matting. <br />The matrix shall be evenly distributed across the entire width of the matting and stitch bonded between a heavy duty UV <br />stabilized bottom net with 0.50 x 0.50 inch (1.27 x 1.27 cm) openings, an ultra heavy duty UV stabilized, dramatically <br />corrugated (crimped) intermediate netting with O.SO x O.SO inch (1.27 x 1.27 cm) openings, and covered by a heavy duty <br />UV stabilized top net with O.SO x O.SO inch (1.27 x 1.27 cm) openings. The middle corrugated netting shall form <br />prominent closely spaced ridges across the entire width of the mat. The three nettings shall be stitched together on I.SO <br />inch {3.81 cm) centers with UV stabilized polypropylene thread to form a permanent three-dimensional turf reinforcement <br />matting. <br />The SC2S0 shall meet requirements established by the Erosion Control Technology Council (ECTC) Specification and the <br />U.S. Department of Transportation, Federal Highway Administration's (FHWA) Standard Specifications For <br />Construction of Roads and Bridges on Federal Highway Projects, FP-03 2003 Section 713.18 as a Type SA, B, and C <br />Permanent Turf Reinforcement Mat. <br />Installation staple patterns shall be clearly marked on the turf reinforcement mattings with environmentally safe paint. All <br />mats shall be manufactured with a colored thread stitched along both outer edges (approximately 2-S inches [5-12.5 cm] <br />from the edge) as an overlap guide far adjacent mats. <br />The composite turf reinforcement mat shall be the North American Green SC2SQ, or equivalent. The SC2S0 permane~ <br />composite turf reinforcement mat shall have the following physical properties: <br />Material Content <br />Matrix 70% Straw Fiber <br />(0.35 Ib/yd2) (0.19 kg/m2) <br />30% Coconut Fiber <br />(0.1 S Ib/yd2) (0.08 kg/m2) <br />Netting Top and Bottom -Heavy Dnty UV Stabilized Polypropylene <br />(S.0 Ibs/1,000 fr2 [2.44 kg/100 m2] approximate weight) <br />Mid -Corrugated Ultra Heavy Duty UV Stabilized Polypropylene <br />(24 Ib/1,000 ft2 [11.7 kg/100 m2] approximate weight) <br />Thread UV Stabilized Polypropylene <br />SC250 is Available with the Following Physical Specifications Per Roll [English Units (Metric Units)] <br />Width 6.50 ft (2.00 m) <br />Length SS.SO ft (16.90 m) <br />Weight f 10% 34.00 Ibs (15.42 kg) <br />Area 40.00 yd2 (33.40 m2) <br />Stitch Spacing for All Rolls = 1.50 inches (3.81 cm) <br /> <br />Updated 1/2004 <br />