TERRADRAIN M

Advantages

√ High drainage capacity compared to traditional systems
√ Simple and rapid installation, saving natural resources and costs

Options and types

The product is available in widths of 2.0 and 4.2 m

Main applications

Civil engineering
Industrial building
Infrastructure and geotechnical works

Specifications

Geocomposite for planar drainage formed of extruded polypropylene monofilaments heat-welded to one another at contact points forming a three dimensional matrix with a symmetric and cuspated structure, thermally coupled to (3 different versions):
a. two filtering nonwoven geotextiles (range Terradrain M1..1
b. one filtering nonwoven geotextile (range Terradrain M1..0)
c. one filtering nonwoven geotextile and one polymeric reinforced membrane (range Terradrain M1..M).
The geocomposite will have the following characteristics:
• Thickness at 2 kPa equal to … mm
• Tensile strength MD/CD equal to …/… kN/m
• In-plane flow capacity of… l/m.s (vertical under 20 kPa load) … l/m.s (vertical under 100 kPa load)

Properties Test Unit Values  
version     a b c
type     M1121 M1181 M1201 M1120 M1200 M120M
mass per unit area EN 9864 g/m2 810 760 900 670 770 980
thickness at 2 kPa EN 9863-1 mm 14 18 20 14 20 20
tensile strength MD/CD* EN ISO 10319 kN/m 15 15 15 8 8 21
horizontal draining capacity; load 20 kPa EN ISO 12958 l/m.s 0,38 0,60 0,70 0,40 0,90 0,70
horizontal draining capacity; load 100 kPa EN ISO 12958 l/m.s 0,03 0,03 0,07 - 0,05 0,08
vertical draining capacity; load 20 kPa EN ISO 12958 l/m.s 2,80 4,40 5,20 3,00 6,30 5,20
vertical draining capacity; load 100 kPa EN ISO 12958 l/m.s 0,30 0,30 0,80 - 0,40 0,90

* MD=machine direction; CD=cross direction

Product to be covered within 14 days of the installation.
Expected minimum duration of 25 years on natural terrains with 4<pH<9 and temperatures <25°C.
Drainage capacity obtained with soft/stiff contacts.
Horizontal drainage capacity corresponds to a gradient i=0.03
Vertical drainage capacity corresponds to a gradient i=1.

Properties Unit Values  
version   a b c
type   M1121 M1181 M1201 M1120 M1200 M120M
role length m 35 28 28 35 28 28
role width m 2,0/4,2

The data expressed here are provided in good faith and refer to the mean values of the current production; we reserve the right to update the performances withoutnotice, following technological development and/or our experiences. The product users will have to ascertain its compatibility with its specific utilisation.