Salt barrier
In deserts and arid areas close to the sea it is quite common for groundwater to move upwards. This is known as a ‘capillary rise process’ and brings dissolved salt in water close to the surface. Vegetation and marble pavements are seriously affected.
To avoid the risks of capillary rise a barrier can be installed as a capillary break layer between saline soil and clean soil.
The Enkadrain Wide composite with its 6 mm thick V-shaped filament core is particularly good at creating a void break. With 95% air space it will allow water to flow in all directions almost equally; thus acting as an efficient salt barrier.
A capillary break (salt barrier) must be situated above the high water level so that it does not become saturated by the contaminated, saline water. Even saline levels of 4 or 5 g/l are generally too high for plants and trees to survive. Enkadrain Wide has a sufficient flow capacity for both irrigation and groundwater flows percolating to the barrier to be drained away through the core without restriction.
Salt barriers are typically used in heavily populated sandy (desert) areas close to the seashore where marble pedestrian pathways are present and trees struggle to survive in high saline content groundwater.
Salt barriers both serve as a capillary layer to break the saline groundwater particles from moving to ground level and also serve as traditional drainage mats for excess sweet water.
Functions:
- Capillary break
- Drainage
- Filtration
- Separation
Relevant products:
