PART 2 - PRODUCTS
2.1 GEOMEMBRANE
A. Membrane Resin Specifications
1. Geomembrane shall be from first-quality resin containing no recycled
polymer (product run may be recycled). The resin shall be the same for
the Geomembrane and the extrudite rod or bead and shall meet the
following specifications:
Property Test Method Value
ASTM D1238 ;
Melt Index Condition 190/2.16 <1.0 grams (g)/10 min.
Specific Gravity ASTM D4883 0.94 g/cm3
B. Geomembrane Specifications
1. The Geomembrane Manufacturer shall deliver Geomembrane that is in
conformance with the specifications below.
Property Test Method Value
Thickness (min. ave.): 57 mil
Lowest individual of 8 out of 10 values ASTM D5994 54 mil
Lowest individual for any of the 10 values 51 mil
Asperity Height (min. ave.) ASTM D7466 16 mil
. ASTM D1505 or
Formulated Density D792 0.94 g/cc
Tensile strength (min. ave.)()
Yield strength 126 lb/in. width
Break strength ASTM D6693 90 Ib/in. width
Yield elongation 12 percent
Break elongation 100 percent
Tear resistance (min. ave.) ASTM D1004 42 lbs
Puncture resistance (min. ave.) ASTM D4833 90 Ibs
Stress Crack Resistance (min. ave.) (®) ASTM D5397 2 500 hours
Carbon Black Content (range) ASTM D4218 2 to 3 percent
Carbon Black Dispersion ASTM D5596 (C)
Oxidative Induction Time (min. ave.) ASTM D3895 2 100 minutes
Notes:
A. Test in Machine direction and cross machine direction. The average values should be based on 5
test specimens each direction.
* Yield elongation is calculated using a gage length of 1.3 inches.
« Break elongation is calculated using a gage length of 2.0 inches.
B. This test is not appropriate for testing geomembranes with textured or irregular rough surfaces.
The test should be conducted on smooth edges of textured rolls or on smooth sheets made from
File No. 3066.09.00 Geomembrane 02550 - 5 of 14 December 2017
