TerraTex® HPG-77 is a polypropylene woven fabric. This engineered geotextile is stabilized to resist degradation due to ultraviolet exposure. It is resistant to commonly encountered soil chemicals, mildew and insects, and is non-biodegradable. Polypropylene is stable within a pH range of 2 to 13, making it one of the most stable polymers available for geotextiles today. TerraTex® HPG-77 is manufactured to meet the following minimum average roll values:
All values provided are intended for rapid comparison purposes, only. Please refer to a specific product’s Product Data Sheet (PDS) and the disclaimers therein for a detailed listing of all characteristics, associated definitions and values needed for structure design, specification compliance review and product submittal purposes. Please Download PDS for all information transfer, printing and submittal purposes.
| Property | Test Method | English | Metric |
|---|---|---|---|
|
Grab Tensile
|
ASTM D4632 | 600 x 500 lbs | 2.67 x 2.23 kN |
|
Grab Elongation
|
ASTM D4632 | 12 x 6 % | 12 x 6 % |
|
Wide Width Tensile (Ultimate)
|
ASTM D4595 | 7,200 x 5,760 lbs/ft | 105.1 x 84.0 kN/m |
|
Wide Width Tensile (2% Strain)
|
ASTM D4595 | 1,360 x 1,560 lbs/ft | 19.9 x 22.8 kN/m |
|
Wide Width Tensile (5% Strain)
|
ASTM D4595 | 3,600 x 3,600 lbs/ft | 52.5 x 52.5 kN/m |
|
Trapezoid Tear
|
ASTM D4533 | 250 x 200 lbs | 1.11 x 0.89 kN |
|
CBR Puncture
|
ASTM D6241 | 1,900 lbs | 8.45 kN |
|
Permittivity
1
|
ASTM D4491 | 0.9 sec-1 | 0.9 sec-1 |
|
Water Flow Rate
1
|
ASTM D4491 | 65 gpm/ft2 | 2,648 Lpm/m2 |
|
AOS
1
,
2
|
ASTM D4751 | 20 US Std. Sieve | 0.85 mm |
|
UV Resistance
|
ASTM D4355 | 80 % @ 500 hrs | 80 % @ 500 hrs |