Core walls for dams

Construction Work for Generations.

Services Core walls for dams

Construction Work for Generations.

WALO has played a pioneering role in the field of bituminous asphalt seals for over 75 years with its various services in Switzerland and worldwide. Apart from sealing reservoirs, canals, landfills and dams, mastic asphalt seals are also part of our specialist department’s range of services.

For over 60 years, dams have been made impermeable to water with asphalt core walls. There are more than 200 core walls of this kind worldwide in dams up to 150 metres in height. An asphalt liner wall is built inside the dam at the same time as the support body is filled. Using core pavers specially developed by WALO, the seal is installed step by step in layers up to 250 mm thick as the construction of the dam progresses. Bituminous core walls are particularly recommended in regions that are vulnerable to earthquakes since the viscoelastic and ductile properties of the asphalt liner mean that it can compensate for these settlements without becoming damaged or permeable.

Leistung: Core walls for dams


Giessenstrasse 5
Postfach, 8953 Dietikon 1

+41 44 745 23 11

433 Broadway, Suite 604
10013 New York NY
United States

+1 (212) 691-4537

Communication House, University Court,
Staffordshire Technology Park
ST18 0ES Stafford

+44 (0) 1785 719793

Impressum schliessen
Responsibility is the official website of Walo Bertschinger AG.


Walo Bertschinger AG

Heimstrasse 1

8953 Dietikon

Tel. +41 44 444 31 11


Concept / Design / Implementation

Die Gestalter AG, St.Gallen

Web portals
WALO IT-ServiceDesk

Tel: +41 (0)848 000 118


Mo-Fr 06:30-12:00 / 13:00-17:30 Uhr


Download Quick Support

Download - WALO-Logos