Shelton Landscape Supply Of Hixson,Tennessee

Landscape Material -» Erosion Control -» Supplemental Specification S150

E r o s i o n C o n t r o l - S u p p l e m e n t a l S p e c i f i c a t i o n

SUPPLEMENTAL SPECIFICATION
S150

The North American Green S150 short-term double net straw erosion control blanket is constructed with a 100% agricultural straw fiber matrix and has a functional longevity of up to 12 months. (NOTE: functional longevity may vary depending upon climatic conditions, soil, geographic location, and elevation). The straw fiber shall be evenly distributed over the entire area of the blanket. The blanket shall be covered on the top and bottom with a lightweight photodegradable polypropylene net having an approximate 0.50 x 0.50 inch (1.27 x 1.27 cm) mesh size. The blanket shall be sewn together on 1.50 inch (3.81 cm) centers with degradable thread. The following list contains further physical properties of the S150 erosion control blanket.

Property	Test Method	Typical
Thickness	ASTM D5199/ECTC	0.32 in (8.13 mm)
Resiliency	ECTC Guidelines	80.50%
Mass per Unit Area	ASTM D6475	7.59 oz/yd2 (257 g/m2)
Water Absorption	ASTM D1117/ECTC	327%
Swell	ECTC Guidelines	14.90%
Stiffness/Flexibility	ASTM D1388/ECTC	6.06 oz-in (67,699 mg-cm)
Ground Cover	ECTC Guidelines	89%
Smolder Resistance	ECTC Guidelines	Yes**
MD Tensile Strength	ASTM D5035	156 lbs/ft (2.27 kN/m)
MD Elongation	ASTM D5035	23%
TD Tensile Strength	ASTM D5035	108 lbs/ft (1.57 kN/m)
TD Elongation	ASTM D5035	22%
**Material is smolder resistant according to specified test MD - Machine direction TD - Transverse direction

Bench Scale Testing†
Test Method - Description	Parameters	Results
ECTC Method 2 - Determination of unvegetated RECP's ability to protect soil from rain splash and associated runoff	50 mm (2 in)/hr for 30 min	Soil loss ratio* = 6.43
	100 mm (4 in)/hr for 30 min	Soil loss ratio* = 8.54
	150 mm (6 in)/hr for 30 min	Soil loss ratio* = 10.08
ECTC Method 3 - Determination of unvegetated RECP's ability to protect soil from hydraulically-induced shear stress.	Shear: 2.01 lbs/ft² for 30 min	Soil loss: 545g
	Shear: 2.62 lbs/ft² for 30 min	Soil loss: 737g
	Shear: 3.22 lbs/ft² for 30 min	Soil loss: 1827g
Failure criteria = 0.50 inch soil loss	Shear at 0.50 inch soil loss (450g)	1.95 lbs/ft²
ECTC Draft Method 4 - Determination of temporary RECP performance in encouraging seed germination and plant growth	Top soil; Fescue (Kentucky 31); 21 day incubation 27° C ± 2° & approximately 50% RH	Percent improvement = 317% (increased biomass)
* Soil Loss Ratio = Soil Loss with Bare Soil / Soil Loss with RECP (NOTE: Soil loss based on regression analysis

†Bench Scale Performance Testing Bench scale tests are index property tests. These tests are not indicative of field performance and therefore should not be used in design to establish performance levels for rolled erosion control products. Bench scale tests are performed according to methods developed by the Erosion Control Technology Council (ECTC).