History
1938
During the early evolution of the water generated power stations in
Switzerland it was an ideal time to develop new and more impermeable barrier
systems for Water Storage projects and in 1938 when the construction
works for an equalising reservoir in Switzerland was put out to tender
our company made use of the opportunity to propose an alternative
system which we had been developing for some time using hydraulic asphalt.
WALO successfully completed this contract and a new concept for impermeable
barriers systems had been developed resulting in many large projects being
carried out over the following decades using hydraulic asphalt as the
impermeable lining system. This equalizing reservoir project still functions properly today to the complete
satisfaction of the owners. WALO believes in quality of work,
using qualified people and modern well designed equipment on all its
contracts.
1938 – 1960
During the period 1938 – 1960 many large Power Stations were built in
Switzerland many having large equalising reservoirs lined by WALO
using exclusively designed machines built in our
own workshops.
1960 – 2003
WALO expanded and developed its hydraulic asphalt knowledge into
lining dams and canals. The first Pump Storage reservoir with an
output of 1,000MW was constructed enabling our company to further
develop and construct new paving equipment for slope lengths of 120m
and more.
During this period WALO created the single layered lining
system instead of the double layered system normally specified. This
proved to be of great benefit because it produced a barrier which was quicker to lay
yet prevented air pockets forming between the two layers.
At the end of the 1970’s, WALO developed a dense asphaltic concrete
system for the permanent sealing of landfill sites, a product which has
helped the waste industry improve its environmental image
substantially.
In 1989 WALO celebrated 50 years in Hydraulic Asphalt Engineering, a
milestone which few companies can equal today.
If its a permanent impermeable sealing
system you are after let WALO be your specialist partner.
