Power Point Tutorial - The Geosynthetic Institute

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7. Ply Adhesion • follows ASTM D6636 • min. ave. of 5 longitudinal tests • requires 20 lb (9 N) min. ave. • required every 30,000 lb (15,000 kg) Ply Adhesion per ASTM D6636 8
8. Oxidative Induction Time • OIT is an indirect measurement of the amount of antioxidants Item Standard High Pressure ASTM D3985 D5885 Specimen ~ 2 mg ~ 2 mg Pressure 35 kPa (5 lb/in 2 ) 3500 kPa (500 lb/in 2 ) Temperature 200°C in N 2 ; 1 min. dwell; switch to 0 2 150°C to N 2 ; 1 min. dwell; switch to 0 2 Spec Value 100 min. 400 min. • challenges the amount and type of antioxidants (AO’s) • frequency is each formulation High Pressure (Left) and Standard (Right) Cells for Measuring OIT 9
Page 1 and 2: GRI-GM25 Specification -for- Scrim
Page 3 and 4: 1. Thickness • follows ASTM D5199
Page 5 and 6: 3&4: Grab Tensile Strength and Elon
Page 7: 6. Puncture Resistance • follows
Page 11 and 12: 9. Oven Aging • challenges the th
Page 13: Concluding Comments • spec addres

Power Point Tutorial - The Geosynthetic Institute

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