2012-12-27_REPORT - M1980244 (15)

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f � BENTOMATO ST CERTIFIED PROPERTIES MATERIAL PROPERTY TEST METHOD TEST FREQUENCY REQUIRED VALUES ft2(m2) Bentonite Swell Index' ASTM D 5890 1 per 50 tonnes 24 ml /2g min. Bentonite Fluid Loss' ASTM D 5891 1 per 50 tonnes 18 ml max. Bentonite Mass /Area2 ASTM D 5993 40,000 ft2 (4,000 m) 0.75 lb/ft2 (3.6 kg /M2) min GCL Grab Strength ASTM D 6768 200,000 ft2 (20,000 m2) 30 Ibs /in (53 N /cm) MARV GCL Peel Strength ASTM D 6496 40,000 ft2 (4,000 m2) 3.5 Ibs /in (6.1 N /cm) min GCL Index Flux4 ASTM D 5887 Weekly 1 x 10-8 m3 /m2 /sec max GCL Hydraulic Conductivity4 ASTM D 5887 Weekly 5 x 10 -9 cm /sec max GCL Hydrated Internal ASTM D 5321 Periodic 500 psf (24 kPa) typ @ Shear Strengths ASTM D 6243 200 psf Bentomat ST is a reinforced GCL consisting of a layer of sodium bentonite between a woven and a nonwoven geotextiles, which are need/epunched together. Notes ' Bentonite property tests performed at a bentonite processing facility before shipment to CETCO's GCL production facilities. 2 Bentonite mass /area reported at 0 percent moisture content. 3 All tensile strength testing is performed in the machine direction using ASTM D 6768. All peel strength testing is performed using ASTM D 6496. Upon request, tensile and peel results can be reported per modified ASTM D 4632 using 4 inch grips. 4 Index flux and permeability testing with deaired distilled /deionized water at 80 psi (551 kPa) cell pressure, 77 psi (531 kPa) headwater pressure and 75 psi 517 kPa) tailwater pressure. Reported value is equivalent to 925 gal /acre /day. This flux value is equivalent to a permeability of 5x10- cm /sec for typical GCL thickness. Actual flux values vary with field condition pressures. The last 20 weekly values prior the end of the production date of the supplied GCL may be provided. s Peak values measured at 200 psf (10 kPa) normal stress for a specimen hydrated for 48 hours. Site - specific materials, GCL products, and test conditions must be used to verify internal and interface strength of the proposed design. CETCO has developed an edge enhancement system that eliminates the need to use additional granular sodium bentonite within the overlap area of the seams. We call this edge enhancement, SuperGrooveTM, and it comes standard on both longitudinal edges of Bentomat° ST. It should be noted that SuperGrooveTM does not appear on the end -of -roll overlaps and recommend the continued use of supplemental bentonite for all end -of -roll seams TR 401 -BMST 05/07 800.527.9948 Fax 847.577.5566 For the most up -to -date product information, please visit our website, www.cetco.com. A wholly owned subsidiary of AMCOL International Corporation. The information and data contained herein are believed to be accurate and reliable, CETCO makes no warranty of any kind and accepts no responsibility for the results obtained through application of this information.