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1B1
Drainage Geocomposite
Datasheet: D1 Data GB05
Construction
Core Extruded Polyethylene (PE) Net
Dated 01.01.2010 Page 1 of 2
Filter/Separator Nonwoven thermally bonded geotextile (Polyethylene/Polypropylene) on each
side of the core
Hydraulic Properties — Composite (Mean values)
In Plane Water Flow EN ISO 12958 20kPa l.m.s (10 -3 m 2 /s) 0.70
(Surfaces Hard/Hard, Hydraulic Gradient = 1.0)
100kPa l.m.s (10 -3 m 2 /s) 0.65
200kPa l.m.s (10 -3 m 2 /s) 0.58
Hydraulic Properties — Filter (Mean Values)
Pore Size EN ISO 12956 mm 0.15
Permeability
(Velocity Index H50)
EN ISO 11058 l/m 2 s (10 -3 m/s) 100
Mechanical Properties — Composite (Mean values)
Tensile Strength EN ISO 10319 MD kN/m 20.0
EN ISO 10319 CMD kN/m 15.5
CBR Puncture Resistance EN ISO 12236 N 3300
Physical Properties—Composite (Typical values)
Mass per Unit Area EN ISO 9864 g/m 2
670
Thickness (2kPa) EN ISO 9863-1 mm 5.0
Roll Width m 2.0 or 4.0
Roll Length m 25, 50 or 100
Filter Overlap (One Side) mm 100
Notes:
For inspection purposes only.
Consent of copyright owner required for any other use.
1. TERRAM 1B1 comprises a polyethylene, three dimensional net structure with a layer of TERRAM geotextile bonded to each
side by thermal lamination.
2. The mechanical and hydraulic results quoted are the family means of the appropriate tests derived over periods of time.
3. The in-plane water flow is measured in the length (longitudinal) direction.
EPA Export 24-08-2012:23:55:49