The SOMTUBE FTB drains water from the subgrade under concrete paving substitute traditional drainage hedgehogs. This system can run continuously in the water table. It must be connected to a network of trench drains.
The SOMTUBE FTB consists of:
- A nonwoven needled filtering sheet
- From mini-drains regularly perforated corrugated
- A nonwoven needled drainage sheet
- A PE film avoiding the pre-sealing of the web by the Wet concrete.
This product has several advantages:
- Earthmoving Economy
- Solution sized by an authorized design office,
- Operates in the groundwater and non-vented
- Technical Notice issued by the CSTB.