AASHTO NTPEP Rolled Erosion Control Product (RECP) Test Report
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1 AASHTO NTPEP Rolled Erosion Control Product (RECP) Test Report Manufacturer: US Erosion Control Products Plant Name: US Erosion Control Products Corporate Address: 1800 Springhead Church Rd. Plant Address: 5227 Springhead Church Road Willacoochee, GA City/State/Zip: City/State/Zip: Willacoochee, GA Corporate Contact: Jody Cabe Plant Contact: Andrew Welsh Phone: Phone: Fax: Fax: NTPEP / Log Number: Product Identification: ECP US-2S Description: Double net temporary straw erosion control blanket Netting: Photodegradable synthetic top and bottom nets each with 0.5 x 0.54 inch rectangular openings Matrix/Fill: 100% Wheat Straw Stitching: Photodegradable synthetic 2.0 in. transverse stitch spacing Test Method - Description ASTM D Mass per Unit Area ASTM D 6818 Ultimate Tensile Strength / Strain - - TD ASTM D 6525 Thickness ASTM D Ground Cover / Light Penetration ASTM D 1117 & ECTC-TASC Water Absorption ASTM D Determination of Unvegetated RECP Ability to Protect Soil From Rain Splash and Associated Under Bench-Scale Conditions ASTM D Determination of Unvegetated RECP Ability to Protect Soil from Hydraulically-Induced Shear Stresses Under Bench-Scale Conditions Test Results Parameters Index Test Index Test Index Test Index Test Index Test 50 mm (2 in.) / hr for 30 min. 100 mm (4 in.) / hr for 30 min. Test Result 9.49 oz/sq.yd % % mils 91.2 % / % % Soil Loss Ratio* = Soil Loss Ratio* = Soil Loss Ratio* = mm (6 in.) / hr for 30 min. Shear: 1.82 psf for 30 min. Soil Loss = g Shear: 2.39 psf for 30 min. Soil Loss = g Shear: 2.96 psf for 30 min. Soil Loss = g Soil loss curve intercept = 2.17 ½-in soil loss Top soil; Fescue (Kentucky 31); % of Control 21 day incubation; 27±2 & = 440% approximately 45±5% RH (increased biomass) * Soil Loss Ratio = Soil Loss Bare Soil / Soil Loss with RECP = 1 / C-Factor (Note: soil loss is based on regression analysis) ASTM D Determination of Temporary Degradable RECP Performance in Encouraging Seed Germination and Plant Growth
2 ROLLED EROSION CONTROL PRODUCT TEST RESULTS Client: NTPEP Material: Manufacturer: Sample ID: TRI Log #: Material: Rolled Erosion Control Product (RECP) US Erosion Control Products US-2S E PARAMETER TEST REPLICATE NUMBER MEAN DEV. Tensile Properties (ASTM D 6818) STD. MD - Maximum Load (lb/in) TD - Maximum Load (lb/in) MD - Max. Load (%) TD - Max. Load (%) Thickness (ASTM D 6525) Thickness (mils) Water Absorption (ASTM D 1117/ECTC TASC 00197) Pre-Soak Weight (grams) Post-Soak Weight (grams) Weight Change (grams) % Weight Change Light Penetration (ASTM D 6567) Baseline Reading Reading with sample % Light Penetration % Ground Cover Mass/Unit Area (ASTM D 6475) Mass of 12 x 14 in specimen (g) Mass/unit area (oz/sq.yd) Mass/unit area (g/sq. meter) MD Machine Direction TD Machine Direction The testing herein is based upon accepted industry practice as well as the test method listed. Test results reported herein do not apply to samples other than those tested. TRI neither accepts responsibility for nor makes claim as to the final use and purpose of the material. TRI observes and maintains client confidentiality. TRI limits reproduction of this report, except in full, without prior approval of TRI.
3 Erosion Control Product Testing Summary ASTM D 7101: STANDARD INDEX TEST METHOD FOR the DETERMINATION of UNVEGETATED ROLLED EROSION CONTROL PRODUCT (RECP) ABILITY TO PROTECT SOIL FROM RAIN SPLASH AND ASSOCIATED RUNOFF UNDER BENCH-SCALE CONDITIONS Soil Loss Ratio* Based on Calculated Soil Loss Based Soil Loss Ratio* Based on 3:1 Slope Raw Soil Loss Data (g) Raw Data Regression Curve on Regression (g) Regression Surface Rain Intensity, mm/hr Rain Intensity, mm/hr Fitting Rain Intensity, mm/hr Rain Intensity, mm/hr Condition CONTROL US-2S C-Factor * soil loss ratio = soil loss of unprotected surface (I.e. control) divided by soil loss with protected surface = 1 / C-Factor RECP Erosion Control Product - Soil Loss vs. Intensity CONTROL US-2S Expon. Power (CONTROL ) Power Expon. (US-2S) Soil Loss (g) y = x y = e x R 2 R= 2 = y = x y = e x R 2 = R 2 = Rainfall Intensity (mm/hr)
4 RECP Slope Simulation Test Client: NTPEP Mass/Area (osy) Mfr: US Erosion Control Products 9.49 TRI Log # E Sample ID: US-2S Slope = 3 TO 1 2 in/hr rainfall Buckets weighed and volume measured every 5 min Bucket 1 Bucket 2 Bucket 3 Test duration: 30 min Mass Mass Mass Soil only Control Average Total Bucket No. Total Volume (ml) Volume (ml) Average RECP Protected Average Total Total Volume (ml) Volume (ml) Mass Average Mass Average Mass Average Mass Average Mass Average Total Average 4988 Bucket No. Soil Loss(g) Soil Loss(g) Soil Loss(g) Soil Loss(g) Soil Loss(g) Soil Loss(g) Soil Loss(g) Soil Loss(g) Soil Loss(g) Soil Loss(g) Soil Loss(g) Soil Loss(g) Cumulative soil loss RECP over Soil Avg Mass/Area (osy): 9.49 Individual Individual Individual Specimen Specimen Specimen Mass (g) Area (in2) Mass/Area (osy) Bucket No Average Normalized Mass Average Mass Average Mass Average Mass Average Mass Average Total Average Total Average Bucket No. Soil Loss(g) Soil Loss(g) Soil Loss(g) Soil Loss(g) Soil Loss(g) Soil Loss(g) Soil Loss(g) Soil Loss(g) Soil Loss(g) Soil Loss(g) Soil Loss(g) Soil Loss(g) Soil Loss(g) Soil Loss(g) Cumulative soil loss
5 RECP Slope Simulation Test Client: NTPEP Mass/Area (osy) Mfr: US Erosion Control Products 9.49 TRI Log # E Sample ID: US-2S Slope = 3 TO 1 4 in/hr rainfall Buckets weighed and volume measured every 5 min Bucket 1 Bucket 2 Bucket 3 Test duration: 30 min Mass Mass Mass Soil only Control Average Total Bucket No. Total Volume (ml) Volume (ml) Average RECP Protected Average Total Total Volume (ml) Volume (ml) Mass Average Mass Average Mass Average Mass Average Mass Average Total Average 6846 Bucket No. Soil Loss(g) Soil Loss(g) Soil Loss(g) Soil Loss(g) Soil Loss(g) Soil Loss(g) Soil Loss(g) Soil Loss(g) Soil Loss(g) Soil Loss(g) Soil Loss(g) Soil Loss(g) Cumulative soil loss RECP over Soil Avg Mass/Area (osy): 9.49 Individual Individual Individual Specimen Specimen Specimen Mass/Area Mass (g) Area (in2) Bucket No. (osy) Average Normalized Mass Average Mass Average Mass Average Mass Average Mass Average Total Average Total Average Bucket No. Soil Loss(g) Soil Loss(g) Soil Loss(g) Soil Loss(g) Soil Loss(g) Soil Loss(g) Soil Loss(g) Soil Loss(g) Soil Loss(g) Soil Loss(g) Soil Loss(g) Soil Loss(g) Soil Loss(g) Soil Loss(g) Cumulative soil loss
6 RECP Slope Simulation Test Client: NTPEP Mass/Area (osy) Mfr: US Erosion Control Products 9.49 TRI Log # E Sample ID: US-2S Slope = 3 TO 1 6 in/hr rainfall Buckets weighed and volume measured every 5 min Bucket 1 Bucket 2 Bucket 3 Test duration: 30 min Mass Mass Mass Soil only Control Average Total Bucket No. Total Volume (ml) Volume (ml) Average RECP Protected Average Total Total Volume (ml) Volume (ml) Mass Average Mass Average Mass Average Mass Average Mass Average Total Average Bucket No Soil Loss(g) Soil Loss(g) Soil Loss(g) Soil Loss(g) Soil Loss(g) Soil Loss(g) Soil Loss(g) Soil Loss(g) Soil Loss(g) Soil Loss(g) Soil Loss(g) Soil Loss(g) Cumulative soil loss RECP over Soil Avg Mass/Area (osy): 9.49 Individual Individual Individual Specimen Specimen Specimen Mass (g) Area (in2) Mass/Area (osy) Bucket No Average Normalized Mass Average Mass Average Mass Average Mass Average Mass Average Total Average Total Average Bucket No Soil Loss(g) Soil Loss(g) Soil Loss(g) Soil Loss(g) Soil Loss(g) Soil Loss(g) Soil Loss(g) Soil Loss(g) Soil Loss(g) Soil Loss(g) Soil Loss(g) Soil Loss(g) Soil Loss(g) Soil Loss(g) Cumulative soil loss
7 Shear Stress vs Soil Loss US-2S ASTM D 7207: STANDARD INDEX TEST METHOD FOR the DETERMINATION of UNVEGETATED ROLLED EROSION CONTROL PRODUCT (RECP) ABILITY TO PROTECT SOIL FROM HYDRAULICALLY-INDUCED SHEAR STRESSES UNDER BENCH-SCALE CONDITIONS Sand only y = x R 2 = y = e x R 2 = Soil Loss (g) 450 g = 1/2-in soil loss Note: Shear stress ratio = 2.17 / 0.1 = Shear Stress (psf)
8 RECP Channel Simulation Test CLIENT: US Erosion Control Products TRI Log # E Sample ID: US-2S soil only rpm soil loss(g) shear stress(psf) RECP over soil soil only Test duration: 30 min RPM: 25 slope Shear Stress (psf): 1.82 intercept R squared 1.00 Average Shear = Bucket No. Mass(g) prior to test Mass(g) post test Soil loss(g) Soil loss(g) Shear = = 1/2-inch 260 intercept recp rpm soil loss(g) shear stress(psf) RECP over soil Test duration: 30 min RPM: Shear Stress (psf): 2.39 Average Bucket No. Mass(g) prior to test Mass(g) post test Soil loss(g) Soil loss(g) RECP over soil Test duration: 30 min RPM: 35 Shear Stress (psf): 2.96 Average Bucket No. Mass(g) prior to test Mass(g) post test Soil loss(g) Soil loss(g) Comments: Buckets weighed under water
9 Germination / Vegetation Growth Summary ASTM D 7322: STANDARD INDEX TEST METHOD FOR the DETERMINATION of TEMPORARY DEGRADABLE RECP PERFORMANCE IN ENCOURAGING SEED GERMINATION AND PLANT GROWTH Property Units Day Control US-2S Seeds Germinated # per 4 sq.in per Area Average inch Plant Height Plant Mass per Area mg per 4 sq.in Property Units Day Control US-2S 7 100% 444% Seeds % 109% Germinated % of Control per Area % 102% Average Plant Height % of Control 7 100% 186% % 161% % 166% Plant Mass per Area % of Control % 440%
10 RECP Germination Date Client TRI Log # Sample ID 05/10/10 US Erosion Control Products E Top Sample 175 seeds 4" layer top soilus-2s Bottom RECP PROTECTED Day 7 Day 14 Day 21 Bucket 3 Bucket 1 Bucket Bucket 1 2 Bucket 1Bucket 3 Bucket 2 Bucket Number of Germinated Seeds Number of Germinated Seeds Number of Germinated Seeds Average per square Average per square Average per square Height of Germinated Plants Height of Germinated Plants Height of Germinated Plants Average height of plants in each 2" square Average height of plants in each 2" square Average height of plants in each 2" square Average height of plants in each bucket Average height of plants in each bucket Average height of plants in each bucket Average height of plants of Sample Average height of plants of Sample Average height of plants of Sample Mass(mg) of plants in each 2" square Average per square Total mass(mg) of plants in each bucket Total mass(mg) of plants for sample Day Temp (27 +/- 2 C) Humidity (45 +/- 5 % RH) Light Intensity (900 +/- 100 ft-cd) Water Added (ml)
11 RECP Germination Date Client TRI Log # Sample ID 05/06/10 US Erosion Control Products E Control Top Bottom Thin layer of top soil 175 seeds 4" layer top soil Control Day 7 Day 14 Day 21 Bucket 2 Bucket Bucket 3 1 Bucket Bucket 1 2 Bucket Bucket 1Bucket 2 3 Bucket Number of Germinated Seeds Number of Germinated Seeds Number of Germinated Seeds Average per square Average per square Average per square Height of Germinated Plants Height of Germinated Plants Height of Germinated Plants Average height of plants in each 2" square Average height of plants in each 2" square Average height of plants in each 2" square Average height of plants in each bucket Average height of plants in each bucket Average height of plants in each bucket Average height of plants of Sample Average height of plants of Sample Average height of plants of Sample Mass(mg) of plants in each 2" square Average per square 29.8 Total mass(mg) of plants in each bucket Total mass(mg) of plants for sample 268 Day Temp (27 +/- 2 C) Humidity (45 +/- 5 % RH) Light Intensity (900 +/- 100 ft-cd) Water Added (ml)
12 Germination / Vegetation Growth Summary ASTM D 7322: STANDARD INDEX TEST METHOD FOR the DETERMINATION of TEMPORARY DEGRADABLE RECP PERFORMANCE IN ENCOURAGING SEED GERMINATION AND PLANT GROWTH Photographs Bucket # 1 US-2S Bucket # 1 Control Bucket # 2 US-2S Bucket # 2 Control Bucket # 3 US-2S Bucket # 3 Control
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