Custom Made Solutions
Our Noise Reduction and Prevention Systems are marked by a variety of state-of-the-art construction features.
The Components
Foundation
A complex, deep foundation structure is not required since the noise barrier is grounded in a supporting gravel bed. Our systems are dimensionally very stable and feature a galvanised steel base that is founded in a gravel bed of no more than 20 cm – 30 cm.
With a barrier height of 3.00 m, the maximum ground pressure amounts to merely 72 kN/m2 . Thus, the construction can even be erected on soils that would be unfavourable for larger and heavier constructions – no soil enhancing measures required.
Construction
An extremely robust steel construction ensures dimensional stability and rigidity of the supporting structure. Because of the use of specially equipped pipes and t-sections with a high yield moment the [k]nord systems are far superior to the standard 20 mm sections.
All the elements are constructed to form a modular system. In order to avoid repeated galvanisation on site our systems all dispense with screw joints.
A galvanisation factor of 200 µm or more for all our elements ensures material durability without corrosion.
In our “+T” model T-steel beams replace round pipes. We guaranty a life expectancy of more than 50 year for all our steel components.
Filling
It is precisely this high-quality steel construction used by [k]nord that allows us to use inhomogeneous soils for the filling of our noise barriers. Contrary to the various other thinner steel constructions, our concepts ensure the necessary rigidity and stability even when filled with inhomogeneous soils.
Top Layer
A clean and visually pleasing outer top layer is especially important. Once again, the solid steel structure of our systems provides essential advantages. The steel-pipe frame is covered with a Geo-textile featuring coco-fibres, thus providing a neat top along the entire length of the noise barrier.
Vegetation and Landscaping
The core of the noise barrier is filled with high-density material (e.g. anthropogenic soil, gravel, debris etc.) in order to prevent subsidence. Since a relatively dry atmosphere will develop in the upper parts of the noise barrier (flowerpot-effect) a pre-cultivated vegetative layer (e.g. grass, herbs, sedum etc.) has proved successful. This layer is placed directly onto the top of the construction.
Planting on both sides of the foot of the barrier with native climber plants ensures a rapid and full coverage. Usually, watering is only required during the initial rooting period. Given all the construction prerequisites were considered and appropriate plants were selected, the vegetation will endure stress situations such as heat, frost, drought, and high winds.
Summary of Advantages:
- Highest quality and value for money
- Highest noise reduction and absorption rates
- Extremely long life-span
- No deep grounding required
- Resistant to graffiti and defacement
- High acceptance from the general public (green oasis)
- Visually engaging
- Childproof, cannot be climbed
- Maintenance free after initial planting
- Height up to 7.50 meters
- Improves climate through reducing dust and fumes
Weststraße 10
27777 Ganderkesee
Fon: +49 4222/47-0
Fax: +49 4222/47-203
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