GXP 5+5 DUO – efficient linear drainage in action
On the S11 expressway project between Bobolice and Szczecinek, the GXP 5+5 DUO geocomposite was used as part of a linear drainage system, supporting effective water removal from the road structure.
Thanks to this solution, the contractor achieved:
- effective drainage performance,
- reduced excavation requirements,
- fast and safe installation – even in difficult soil conditions.
GXP 5+5 DUO is a drainage geocomposite combining a dimpled core with two layers of DuPont™ Typar® filtration geotextile. This structure provides high in-plane flow capacity and long-term filtration performance, minimizing the risk of clogging (colmatation).
Investor: Generalna Dyrekcja Dróg Krajowych i Autostrad Szczecin
General Contractor: INTERCOR
Site Contractor: INŻBET – Zakład Instalacyjno-Budowlany (Szczecinek)
Why choose GXP 5+5 DUO for linear drainage?
- no need for gravel filter layers,
- simplified excavation and logistics,
- fast, manual installation – no heavy equipment required,
- proven long-term performance under load.
At Griltex, we design geosynthetic solutions that improve efficiency and reliability on construction sites – where it matters most.


