• Who we are
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  • Who we are
  • What we do
  • Projects
  • Career
  • Contact
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Who we are

Operating internationally with Swiss roots, WALO is a family-owned business now being led by the fifth generation. For over 100 years, WALO has been committed to the combination of consistency and innovation.


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What we do

WALO is active as an innovative total solutions company in all markets of the construction industry. With its decades of experience and the permanent development of sustainable as well as economical solutions, the family-owned company has established itself as a reliable partner in the construction industry and infrastructure projects in Switzerland and worldwide.


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Projects

We have successfully implemented many challenging projects and are proud to let our references speak for our work.


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Career

Good construction and thus satisfied customers require precise work. All our employees, from unskilled workers to engineers, play a key role in ensuring that we achieve this goal time and time again.


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With our locations in three countries, we are by your side worldwide.


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Châtillon Landfill, Switzerland

The Châtillon Landfill site is situated in a former gravel pit. The landfill stores mixed waste and slag/ash from the local incinerator plant. The sealing system of clay needed replacing with a bituminous lining system so WALO was commissioned to undertake the works.

Case Study Description

The Châtillon Landfill site is situated in a former gravel pit. The landfill stores mixed waste and slag/ash from the local incinerator plant. The sealing system of clay needed replacing with a bituminous lining system so WALO was commissioned to undertake the works.

 

As it is impermeable to leachate and methane, WALO’s Dense Asphaltic Concrete (DAC) was an ideal choice for complete containment of the landfill waste brought to Châtillon. WALO constructed cells at the site using DAC formulated in the company’s Zurich laboratory to a design mix unique to the project.

 

In addition to replacing the lining, the client was looking to benefit financially by increasing the void size available at the site. As WALO specializes in applying DAC to steep slopes using highly advanced laying and compaction techniques, it was possible to construct very steep slopes at Châtillon, thus increasing the void available. As well as being very strong and flexible, WALO’s DAC can be applied in thin layers (here just 70mm), further increasing the size of the void available. Numerous cells at Châtillon have been constructed by WALO in the last two decades. Working at the site, WALO discovered that there is a significant advantage in being able to join each successive cell together, forming one homogeneous, perfectly sealed landfill. The separation of the different compartments within the landfill is done by intercell bunds made of DAC, that the locals call ‘Toblerone’ – owing to their shape!

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Contact

Walo Bertschinger AG
Giessenstrasse 5
8953 Dietikon 1

Location
Switzerland
Service
Building time
1994 - 2012
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We appreciate your interest in the WALO Group and will be happy to answer your questions.

Walo Bertschinger AG

Headquarters
Giessenstrasse 5
Postfach, 8953 Dietikon 1

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