Description
teracro® is a cellular nonwoven geocontainer structure with a tough filter base, upon which twisted strips are bonded to form permeable upstands of 13cm high, spaced regularly every 60cm in both directions.
teracro® is reinforced by polyester cables to give it the necessary strength on major slopes. It is available with an integrated network of 20mm perforated mini-drains spaced regularly to provide it with a high drainage and flow capacity (teracro TD®).
Solving a major problem bit by bit:
teracro® deals with problems of earth bonding, erosion control and slope protection via small terraces between each row of upstands; dividing a big problem into small sections to solve it more easily, ensuring great efficiency. However long a slope may be, it will therefore always be reduced to smaller drainage zones.
Installation technique
- create a layout drawing to limit cutting out
- provide access for the installation team
- prepare a flat, graded and compacted base, with no protruding elements
- unroll the product onto the ground with a pole passed through the reel, or by hand, or suspended from a lifting beam
- the sections are bonded together using a hot air gun
- cut out the teracro using a cutter, wearing gloves
- provide for anchoring at the top (earth, rock, geomembrane)
- only a head anchoring is necessary and generally no intermediate pegs are required on the slope
- unroll the panels from the top downward, with the panels overlapping one another by about 0.5m at the side
- backfill and compact the anchoring trench
- backfill and compact the base anchor, then deposit earth at the top
- finally apply topsoil from the top, pushing it slightly down the slope to fill the teracro® upstands. The earth is then levelled and compacted slightly
- provide for discharge of the network of mini-drains into a ditch or trench (teracro TD®)
Packaging
- teracro can be delivered in rolls 4m wide and 50m long or in custom lengths on request
