For the elevated tank, the CPF formwork liner Zemdrain® Classic is applied prefabricated to drain the water from the concrete surface. This makes the concrete surface harder, denser and more resistant.
The storage volume of the new drinking water reservoir in Henndorf will be 1,200 m3 - divided into two water chambers with 600 m3 each. They will have an internal diameter of 14 metres and a clear height of 4.7 metres.
Using Zemdrain® as a formwork liner produces higher concrete surface hardness with reduced porosity. The improved concrete surface ensures less growth of micro-organisms and algae as well as increased frost and salt resistance.
Zemdrain® Classic prefabricated is a formwork liner specially adapted for the formwork of circular tanks. The prefabrication helps with the wrinkle-free covering of round formwork made of wood or steel.
Drinking water tank
Gemeinde Henndorf
Hydrologische Untersuchungsstelle Salzburg GmbH
GTB Hochbau, Salzburg
www.gtb-hochbau.at
2025
Max Frank Pty Ltd
1/42 Balaclava Street
Woolloongabba QLD 4102
Australia