A nice video animation to show how to install gabion baskets on geotextile fabrics.
Below 2 typical roof garden sections. These are only to give an idea. Of course the designs change depending on the needs in the project.
The upper with conventional design. For drainage 2 nonwoven geotextile (filter fabric) layer and gravel in between were used on top of the waterproofing layer. (mineral drainage layer) Heavy and cost more to take the gravel to the roof. Bigger load on the concrete.
The below is with a geocomposite drainage layer, lightweight and easy to use. The drainage layer is only between 0.5- 1 kg depending on the material. ıt is factory made and tested material. The access water from the vegetation and soil comes to drainage layer and carried to channels.
- grid embedded in nonwoven filter layers
- One-step easy installation
- Optimal interaction with the sub-grade
- High modulus, low strain (Enkagrid TRC)
- Geogrid and nonwoven geotextile together
Another usage of geosynthetics materials are in steel water reservoirs.
These are very practical and easy to use water storage systems.
They come with all the parts inside and you construct it on site.
Their heights are upto 4.64 meters and diameters vary from 1.85 to 30.95 meters.
Inside the steel construction there is a nonwoven geotextile liner to protect the waterproof tank liner. The tank liner can be made of PVC or other type of polymers depending on the usage.
Applications (nonwoven) :
- Single ply
- Under slating
- Vapor barrier
- Liquid roofing
- Crack repair
- Wall reinforcement
- Wood bending
- Protection layer in molds
- Rubber conveyer belts
- Pipe wrapping
- Reinforced plastics / Pultrusion
Kocaeli free zone project has a harbour inside the project. There is a heavy traffic of trucks. To prevent or reduce partial settlements on the roads due to the heavy truck traffic special geogrid was used.
This multifunctional geogrid delivers reinforcement, separation and filtration in one easy-install product for paved roads, parking areas, platforms and building/structure foundations. In the project it reduced the required subbase thickness.
It helps to reduce the partial settlements.
Beside the reinforcing Trc geogrid also provides a filter layer. So it works like a geogrid and a nonwoven .
This type of geogrids work as reinforcement, separation and filtration layers.
We can simply devide geosynthetics in below groups.
- Woven fabrics
- Nonwoven fabrics (Thermally, mechanically, chemically bonded)
- three dimensional mats
- HDPE , LDPE liners
Geocomposites are made by using above product with each other. For example a drainage composite can be made by joining 2 filter fabrics (nonwovens) and a 3 dimensional mats in the middle.