PERMFILE72435

• Permit No: C1994082
• IBM Index Class Name: Permit File
• Doc Date: 6/1/2007
• Doc Name: Turf Reinforcement Mat Design and Installation Information
• Section_Exhibit Name: Tab 13 Attachment 13-12 Appendix 13-12.A
• Media Type: D
• Archive: No

SUPPLEMENTAL SPECIFICATION
AM~I~C N P300
GREEN'
0
The North American Green P300 permanent turf reinforcement mat shall be constructed of 100% UV stabilized
565 denier polypropylene fiber sewn between a black UV stabilized 0.50 x 0.50 inch (1.27 x 1.27 cm) mesh
polypropylene netting on the top (6 lbs/1,000 ft~) and a black UV stabilized 0.625 x 0.625 inch (1.59 x 1.59 cm)
mesh polypropylene netting on the bottom (3 Ibs/1,000 ft'). The P300 is sewn together using UV stable
polypropylene thread stitched on 1.50 inch {3.81 cm) centers. The mat is highly resistant to ultraviolet and
biological degradation. The following list contains further physical properties of the P300 erosion controVturf
reinforcement mat.
Pro a Test Method
Thiclmess ASTM D6525
Resiliency ASTM D1777
Density ASTM D792
Mass per Unit Area ASTM D6566
Porosity ECTC Guidelines
Open Volume per Unit Area ECTC Guidelines
Stiffness ASTM D1388/ECTC
Light Penetration ECTC Guidelines
UV Stability ASTM D4355**
MD Tensile Strength ASTM D6818 [D5035]
MD Elongation ASTM D6818 [D5035]
TD Tensile Strength ASTM D6818 [D5035]
TD Elongation ASTM D6818 [D5035]
ical
0.54 in (13.72 mm)
91.50%
0.513 o~n3 (0.890 g/cm3)
11.46 oz/yd2 (389 g/m2)
95.89%
872 in3/yd2 (11,952 cm3/mZ)
97.24 oz-in (1,085,378 mg-cm)
15%
90
481 Ibs/ft (7.02 kN/m) [379 Ibs/ft (5.53 kN/m)]
20 % [26 %]
4261bs/ft (6.22 kN/m) [4031bs/ft (5.88 kN/m):
23 % [27 %]
**ASTM D1682 (4 inch strip) Tensile Strength and % Strength Retention of material following 1000 hrs exposure in Xenon-Arc Weatherometer.
MD -Machine direction
TD-Transverse direction
Bench Scale TestinQt
Tes[ Method - Descri lion Parameters Results
ECTC Method 2 -Determination of
' 50 mm (2 in)/hr for 30 min Soil loss ratio* = 11.92
unvegetated RECP
s ability to protect 100 mm (4 in}/Iv for 30 min Soil [oss ratio* = 10.79
soil from rain splash and assomated
runoff 150 mm (6 in)/hr for 30 min Soil loss ratio* = 10.17
ECTC Method 3 -Determination of Shear: 2.73 Ibs/fr' for 30 min Soil loss: 3838
'
unvegetated RECP
s ability to protect Shear: 3.40 Ibs/ft' for 30 min Soil loss: 451g
soil from hydraulically-induced shear
stress. Shear: 4.06 Ibs/ft° for 30 min Soil loss: 557g
Failure criteria = 0.50 inch soil loss Shear at 0.50 inch soil loss (450g) 3.30 Ibs/ft~
ECTC Draft Method 4 -Determination

of temporary RECP performance in Top soil; Fescue (Kentucky 31); 21
percent improvement = 263%
encouraging seed germination and plant day incubation 27° C±2° & (increased biomass)
growth approximately 50%1211
Soil Loss Ratio =Soil Loss with Bare Soil /Soil Loss with RECP (NOTE: Soil Toss based on regression analysis)
tBench Scale Performance Testing
Bench scale tests are index property tests. These tests aze no[ indicative of Feld performance and therefore should
not be used in design to establish performance levels for rolled erosion control products. Bench scale tests aze
performed according to methods developed by the Erosion Control Technology Council (ECTC).
Updated 1/2004